Search Results for: junmai

National New Sake Tasting Competition

In all its historical glory…

Judges tasting awayEach year in May, the most prestigious sake contest in the world is held in

Hiroshima. The Zenkoku Shinshu Kampyoukai is a tasting of newly-brewed sake from all over Japan, and is a measure of the technical skill of the brewers in the industry. Its purpose is to encourage the brewing industry to constantly work to push the envelope of brewing expertise.

The name of the event is best translated as the National New Sake Tasting Appraisal, although for some reason the official English name is the Annual Japan Sake Awards.

This year, the 103rd running of the event, I was so privileged as to be the first person outside of the sake industry to participate as a judge in the finals. It was an incredibly amazing thing to do, and I really felt the pressure of the responsibility. And it may have been the coolest thing I have ever had the opportunity of experiencing.

The organization that runs the contest is the National Research Institute of Brewing, which was for most of its 111 year existence a government entity, although that changed a few years back.

DSC_0845Rather than drone on about details, here I want to highlight some of the special characteristics and idiosyncrasies of the contest, and a bit about how the tasting is conducted, all with the goal of promoting more interest in the yearly event.

This year, 852 of the 1200-odd sake breweries in Japan submitted a sake to the contest. That number is actually up by seven from last year, even though the number of active breweries declined a bit. This is likely due a changing of the guard in the industry, with younger brewery owners perhaps a bit more enthusiastic than their predecessors.

It is not the be-all end-all of sake contests, nor is it universally loved. A few brewers choose to summarily pass and not even play the game. And most consumers here in Japan are not even aware of it! But still, it is historically, culturally and technically a very interesting event even if it does have a narrow focus.

IMG_1564It works thusly: All the sake is tasted blindly in a preliminary round by a panel of judges over three days. Each judge tastes solo, with no discussion of merits or faults. And the scoring is scathingly simple: the sake is assessed a 1 (the best) to a 5 (the worst). In the preliminary round, comments are also recorded for feedback to the brewers. Those that score well enough advance to the final round. While there is no clear dividing line, it usually ends up being about half of the sake.

A couple of weeks later, the final round takes place, with a judging by a

panel of 24 judges over two days. This time, it is even more brilliantly (brutally?) simple: each sake is assessed a 1, a 2 or a 3. That’s it. Full stop. No discussion, no comments; do not pass go, do not collect $200.

And after this round, a slightly vague clean break in the scores is again used as the dividing line. Those that do well enough here (again, usually about half of the qualifying sake) are awarded a “Kinsho,” or gold medal. The remaining half of the sake that made it to this round are recognized as well.

Sake Notebook Sake Slideshow SETThe sake are of course tasted blindly. They are not arranged geographically or in any logical order such as that. They are, however, clustered into groups of similar aromatic potency. The thinking is that a very aromatic sake may impair the taster’s ability to be fair to a subsequent sake that is less fruity. So all the submissions have an aromatic component called ethyl caproate measured using a spectrometer before the event, and are presented in groups of their perfumed peers, so to speak.

The sake submitted by most of the breweries is a bit intense, kind of like daiginjo on steroids. It is not normal sake available on the market (with some exceptions), but is brewed especially for this contest. While some folks may (and some do) ask “what’s the point?,” keep in mind the purpose here is to assess and promote technical skill. Odd though it may sound, long-session drinkability is not the major consideration.

And as a rational concession to this point, we were instructed that we could lower our score of a sake by one point if we felt that, as good and flaw-free as it might be, it was not something we could chill out with and actually drink. This was, I thought, a very reasonable way to do things.

In terms of actual execution, the 24 of us had 50 minutes to taste 50 sake, which was just about the right amount of time. Then we had a ten minute break, and we went on to the next 50 sake in 50 minutes. We went through five increasingly grueling rounds of this on day one, and three-and-a-half rounds on day two.

I imagine that the preliminary tasting is harder, since by the time we got to them in the finals, the weird stuff had been weeded out. Having said that, I had trouble assessing a score of “3” to many of the sake, since everything there had already cleared the preliminaries!

Almost all of the sake submitted were made using some added alcohol, i.e. are not junmai types. This chokko_smallmakes sense since the added alcohol helps bring out flavor and aroma (the sake are also watered down again, so are not, in the end, fortified). Nevertheless, there were 121 junmai sake in there, up seven from last year.

Interestingly, I heard one industry expert vociferously complain about the junmai submissions. He feels that some brewers just unthinkingly threw a junmai type in there, not expecting it to win, but rather to express their commitment to fanatical junmai-ism, so to speak, or rather against the practice of adding alcohol.

“It is distracting to the judges that are trying to concentrate, and such sake is irrelevant to the contest. It is as if they are sabotaging the dignity of the event,” he explained. Certainly this is only one opinion, but I can very clearly see its merits, and his point as well.

In the end, 415 received an award this year, of which 222 were gold medals.

As has been the case for the past several years, the Tohoku region (the six prefectures on the northern extreme of Japan’s main island, Honshu) kicked butt again. In particular, Fukushima Prefecture won 24 gold medals, far away from the next-most of 15 won by Yamagata (also in Tohoku) and Niigata. The dominance of the region continues.

Amber glassesOne interesting idiosyncrasy of the event, evident in the photos here, is that the sake is all tasted from simple amber-colored tumblers. Why amber? Because that hides any color in the sake, which is done, it is said, to prevent tasters from imposing a prejudice on sake based on any semblance of amber color which might skew their opinion. Are such glasses, with their simple shape, the best for sake like this? Not likely, in the opinion of many. But at least all the sake are tasted under the same conditions. I am also not sure that the colored glass solution is the most appropriate solution to misplaced perceptions. But this is the way it has long been done.

In the end, the Zenkoku Shinshu Kampyoukai has a long and storied history, complete with false starts and offshoots. And it is a brilliant yearly event that has maintained its significance in the sake industry. Furthermore, the NRIB is reaching out to the world with the event, and it is important to the sake industry to support that.

As evidence of that reaching out, you can learn more about the NRIB in English here. Also, you can learn more about the particulars of the contest here. And finally, you can see the results in English here.

Should the contest and the NRIB interest you, by all means, please check out all three.

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Sake Professional Course in Florida, August 17-19

All you need to know about sake!Thanks to everyone’s support and the current popularity of sake, the Sake Professional Course in Las Vegas, June 1-3, is full. The next Sake Professional Course is scheduled for Miami Beach Florida, August 17-19, at the Shelborne Wyndham Grand Hotel, within which sits the South Beach Morimoto Restaurant. This is the first Sake Professional Course to be held in this part of the country and promises to be a particularly enjoyable running of the course.

More information is available here, and testimonials from graduates can be perused here as well. The three-day course wraps chokko_smallup with Sake Education Council supported testing for the Certified Sake Professional (CSP) certification. If you are interested in making a reservation, or if you have any questions not answered via the link above, by all means please feel free to contact me.

Following that, the next one is tentatively scheduled for the fall in the northeast part of the US. If you are interested, feel free to send me an email to that purport now; I will keep track of your interest!

 

Books

sake-cover1-150x300Sake Confidential: A Beyond-the-Basics Guide to Understanding, Tasting, Selection, and Enjoyment

by John Gauntner
Published by Stone Bridge Press
List price $10.21
Paperback – 184 pages
June 2014
ISBN: 1611720141
Dimensions (inches): 8.9 x 4.4 x 0.6

With today’s sake drinkers increasingly informed and adventurous, now is the time for a truly expert guide to take you deeper into appreciation of this complex but delightful Japanese beverage, brewed from rice and enjoyed both warm or chilled.

And what better mentor than John Gauntner, the “Sake Guy” and the world’s leading non-Japanese sake educator and evangelist? Here in over two dozen no-holds-barred essays, John reveals “the truth about sake” from a connected insider’s perspective. No other book or website presents such a knowledgeable, practical, and concise yet complete guide to sake idiosyncrasies, misperceptions, and controversies.

Sake Confidential is the perfect FAQ for beginners, experts, and sommeliers. Indexed for easy reference with suggested brands and label photos. Includes:

  • Sake Secrets: junmai vs. non-junmai, namazake, aging, dry vs. sweet, ginjo, warm vs. chilled, nigori, water, yeast, rice, regionality
  • How the Industry Really Works: pricing, contests, distribution, glassware, milling, food pairing
  • The Brewer’s Art Revealed: koji-making, brewers’ guilds, grading

Buy at Amazon!

In association with Amazon


 

The Sake HandbookThe Sake Handbook 3rd edition

by John Gauntner
Published by Charles E. Tuttle
List price $10.95
Paperback – 254 pages
February 1998
ISBN: 0804821135
Dimensions (inches): 0.58 x 7.19 x 4.50

The Sake Handbook is a compact guidebook to Japan’s national beverage. It is the perfect introduction to the history, brewing, and merits of various types of sake. Just what is jizake, namazake or ginjoshu? The Sake Handbook answers these and many other questions about sake, and will help you find your way to some of Japan’s most memorable sake establishments.

  • Gives all the information you need to become a sake expert in a handy, portable format.
  • Offers a detailed explanation of the sake brewing process.
  • Reviews over one hundred brands, their labels included for easy identification.
  • Profiles over fifty Japanese izakaya, or pubstyle restaurants in Tokyo and environs that specialize in sake, including maps.
  • Lists specialty liquor shops throughout Japan, with addresses and phone numbers, where you can purchase hard-to-find sake brands. This comprehensive guide to sake includes an A-Z directory of Japanese and American sake with ratings and tasting notes for more than 130 sake varieties. Also included is a directory profiling major Japanese and American breweries, as well as a primer on sake terminology, an explanation of the sake brewing process, and a history of the role of sake in Japanese culture.

Best up to date book on sake available! As president of a premium sake brewery in Oregon, I can attest that John’s book is the best up to date book on sake available. If you are interested in knowing more about sake, then this is the current bible. -Book Review from Forest Grove, Oregon, March 29, 1998

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In association with Amazon

Shochu and Awamori

What is Shochu?

Shochu is Japan’s other indigenous alcoholic beverage, but unlike sake, shochu is distilled. It is also made from one of several raw materials. The alcoholic content is usually 25%, although sometimes it can be as high as 42% or more.

The word “sake” in Japan can actually refer to all alcoholic beverages in general, although it most often refers to the wine-like rice brew so tightly associated with that word overseas. But in some parts of Japan, most notably the far western and southern regions, the word sake is understood to refer to a totally different alcoholic beverage, also indigenous to Japan, but distilled and not brewed: shochu.

Like almost all such beverages throughout the world, shochu developed as it did as an expression of region, especially climate, cuisine and available raw materials. Perhaps the factor most affecting the development of shochu is the weather. The island of Kyushu and the western part of the island of Honshu are significantly warmer than the rest of Japan.

Brewing sake calls for relatively lower temperatures, but shochu can be distilled in these warmer regions. Also, the higher alcohol content and drier feel is more appealing to many in milder climates.

Unlike many other beverages, shochu is made from one of several raw materials. These include sweet potato, and shochu made from these is called “imo-jochu.” Other materials commonly used include from rice, soba (buckwheat), and barley. There is even one island where there a few places that make shochu from brown sugar. It can also be made from more obscure things like chestnuts and other grains.

And, each of these raw materials gives a very, very distinct flavor and aroma profile to the final sake. These profiles run the gamut from smooth and light (rice) to peaty, earthy and strong (potato). Indeed, each of these raw materials lends a unique flavor in much the same way that the peat and barley of each region in Scotland determine the character of the final scotch whiskey.

There are, in fact, many parallels between shochu and scotch, regional distinction based on local ingredients being only one of them.

Another parallel to scotch can be found in the distillation methods. There are basically two main methods of distillation. The older method – it has been around since the 14th century or so – involves a single round of distillation only, and is made using only one raw material. Known as Otsu-rui (Type B – in an admittedly loose translation) or Honkaku (“the real thing”) shochu, this type will more often reflect the idiosyncrasies of the original raw material. In this sense, it can be likened to single malt scotches.

The second method is one in which the shochu is goes through several distillations, one right after another. It is often made with several of the commonly used raw materials. Known as Kou-rui (Type A, in the same admittedly loose translation) shochu, this method has only been around since 1911, although it only became a legal classification in 1949. With a bit of a stretch, this kind of shochu is similar to much blended scotch. In other words, it is much smoother, ideal for mixing in cocktails, and with much less … well, character.

Beyond these variables, the type of koji mold (used to create sugar from the starch of the raw materials during the fermentation step that necessarily takes place before distillation) can be one of three, (yellow koji, as is used with sake, white koji and black koji) and the distillation itself can take place at either atmospheric pressure or at a forced lower pressure. These parameters too naturally affect the style of the final product.

Kou-rui shochu, of which much more is produced by far, is quite versatile. As it is lighter and cleaner, it lends itself well to use in mixed drinks. Perhaps its most ubiquitous manifestation is the popular “chu-hi,” a shochu hi-ball made using a plethora of different fruit flavors and sold in single-serving cans or mixed fresh at bars and pubs. (Since it is supposedly cleaner by virtue of having been repeatedly distilled, it is said by some to give less of a hangover, although there is no evidence to truly back this up.)

Otsu-rui shochu, the “real thing” honkaku-shochu, on the other hand, has a more artisan, hand crafted appeal associated with it. The nature of the raw material can really come through, and be it soba, rice, barley, or chestnuts, each has its fans and foes. This is especially true when it has been distilled at atmospheric pressure, not forced lower pressure.

Perhaps the most interesting – and illustrious – of all shochu are those made from the sweet potatoes of Kagoshima Prefecture: imo-jochu. While the flavors can be heavier and more earthy than shochu made from other starches, Kagoshima imo-jochu offers complexity and fullness of flavor that makes it quite enjoyable to many a connoisseur.

Honkaku “the real thing” shochu is usually enjoyed straight, on the rocks, or with a splash of water. Another way to enjoy either type of shochu is known as “oyu-wari,” which is simply mixing it with a bit of hot water. This both backs the alcohol off a bit, releases flavor and aroma, and warms the body to the very core. Unbeatable in winter, for sure. From experience, I can guarantee it will warm you from the core outward.

Shochu overall is enjoying massive popularity these days in Japan. Over the last couple of years, both beer and sake consumption have continued to drop, where as shochu has actually increased.

While shochu has its roots in either China or Korea, probably having come across during trading, the traditional home of shochu in Japan is Kagoshima, on the island of Kyushu. In fact, the first usage of the term shochu appeared in graffiti written by a carpenter dated 1559 in a shrine in the city of Oguchi in Kagoshima.

Kagoshima is rightfully proud of their shochu heritage. It is the only prefecture in Japan that brews absolutely no sake, but only produces shochu. If you ask for sake down there, expect and enjoy the local sweet-potato distillate.

The difference between soju and shochu

Korea also makes shochu, although it is called soju in Korean. And, Korean producers got to the US with it first. As such, in US legalese, the product is known as shochu. As far as I know, all Japanese shochu will be legally referred to as soju in the US. It is, in essence, the same thing. Judge it on its flavor, not its label.

What is Awamori?

Awamori is an alcoholic beverage indigenous to and unique to Okinawa. made from rice, however, it is distilled from rice, not brewed. The traditions and methods of Awamori originally came in from Thailand (although with influences from the south, from Indonesia and Taiwan, and from the north, from China and Korea it is said), and awamori was actually the very first distilled beverage in what is now Japan.

Awamori is made only in Japan’s southern most prefecture, the tropical island group of Okinawa. Currently, there are but 47 makers of this unique, earthy beverage, although awamori is enjoying a boom right now, and business is brisk. Due to the influence of the US presence from WWII until 1972, for decades the drink of choice in Okinawa was scotch or whiskey. Now, however, this erstwhile gift to the Shogun of Japan has resumed its rightful place as a very popular sipping beverage in its own land.

There are quite a few ways in which awamori is unique. The pre-distillation ferment is made in such away that there is plenty of citric acid created, which allows awamori to be made all year round in this hot climat. It is distilled once, and afterwards the alcohol content is lowered with water to about 25 to 30 percent, although some awamori is found at 43 percent alcohol.

There are several theories on the origins of the word awamori itself. “Awa” means foam and “mori” can mean to rise up. One theory then is that the foam would rise in great swaths during per-distillation fermentation. Another is that long ago the level of alcohol was measured by pouring the awamori from a height of an outstretched arm into a small cup, and measuring how much foam rose in the cup. Yet a third, less romantic, states that this name was forced upon the Ryukyu distillers by the Satsuma clan of Kagoshima to be sure that it would not be confused with their beloved shochu.

Etymological considerations aside, as mentioned above, awamori is a beverage distilled from rice. It differs from sake, mainland Japan’s indigenous drink, in that sake is brewed, not distilled. Also, sake is made with short-grain Japonica rice, whereas awamori is made using long-grain indica rice that is imported from Thailand (even today). It differs from shochu, Japan’s other distilled beverage, (although much shochu is made from materials other than rice) in several ways, including process variations, as well as the type of koji mold (used for saccharification) and yeast.

A word worth remembering when shopping for awamori is “kusu.” Kusu is aged awamori. It is written with the same characters as the Japanese word koshu, which refers to aged sake, the pronunciation is unique to Awamori and Okinawa.

Awamori was meant to be aged, and aged for a long time. Like many beverages distilled from grains, aging mellows the flavor and rounds out the edges. While awamori aged ten years can be wonderful, it becomes even more enjoyable at 20 or 25 years. (One of the challenges to the awamori industry is how to remain financially viable while they wait on the returns of their long-term investment.)

But the traditional method of aging awamori, known as “shitsugi,” is very curious and does not boast a high degree of repeatability. To explain it, we need to bear in mind that hundreds of years ago, when the Ryukyu kingdom was in its heyday, folks would have several lidded urns of awamori lined up outside the house. The urn containing the oldest awamori was closest to the door, with each urn having successively younger product inside.

When a drink was ladled out from the first urn, the amount taken was then replaced with awamori from the second urn. This in turn was refilled from the third urn and so on. Freshly distilled stuff was placed into the last urn when ready. This led to each urn having inside of it an indeterminable blend of awamori of different degrees of aging. So although kusu refers to aged awamori, traditionally it was not really possible to be any more precise than that.

Modern times, laws, and consumer guidelines call for a bit more accuracy, and currently for a bottle of awamori to have kusu on the label, at least 51% of the contents must have been aged at least three years. While this allows for the traditional shitsugi method of aging, it still means that 49% of it could be freshly distilled stuff. So, while it may be a bit harder to find and a tad more expensive, it is worth it to search for 100% kusu of ten years or more. It will be clearly written as such on the bottle, i.e. “100% aged 10 years,” or something to that effect. Having said that, it is very difficult to find something like a bottle of kusu of which 100% has been aged 25 years.

When the Ryukyu kingdom was in its prime, the best kusu was served at only the most special of occasions. It was presented in very small thimble-sized cups, called “saka-jiki ,” holding perhaps a tablespoon, that are dwarfed by the average “o-chokko” sake cup. These ae still used today in some situations. It was said that while wealthy people might entrust their money to others, they would always keep the keys to their awamori cellar with them.


SAKE CONFIDENTAL 

Interested in learning more about sake?

Check out my book “Sake Confidential” on Amazon.

Sake Confidential is the perfect FAQ for beginners, experts, and sommeliers.

Indexed for easy reference with suggested brands and label photos. Includes:

  • Sake Secrets: junmai vs. non-junmai, namazake, aging, dry vs. sweet, ginjo, warm vs. chilled, nigori, water, yeast, rice, regionality
  • How the Industry Really Works: pricing, contests, distribution, glassware, milling, food pairing
  • The Brewer’s Art Revealed: koji-making, brewers’ guilds, grading

 


SAKE INDUSTRY NEWS

If you are interested in staying up to date with what is happening within the Sake Industry and also information on more advanced Sake topics then Sake Industry News is just for you!

Sake Industry News is a paid subscription newsletter that is sent on the first and 15th of each month. Get news from the sake industry in Japan – including trends, business news, changes and developments, and technical information on sake types and production methods that are well beyond the basics – sent right to your inbox. Subscribe here today! 

Each issue will consist of four or five short stories culled from public news sources about the sake industry in Japan, as well as one or more slightly longer stories and observations by myself on trends, new developments, or changes within the sake industry in Japan.

 

Aging sake

Aged sake, or “koshu,” is a topic I am wary of breaching. There are a number of reasons for this reticence, not least of which is that aged sake represents such a miniscule portion of all sake that is out there. Aged sake is hard to get, quite expensive, and overall a totally different animal than regular sake – and certainly NOT better in any unequivocal sense. Nor is there any one proper way to age sake, nor any one universally agreed upon way that aged sake should turn out. In one sense, it amounts to – more than anything else – a diversion in the sake world. Fresh sake is really what warrants most of out attention.

However, before I come off as too harsh or biased, let me add that most of the time I like aged sake: it has its place indeed. And heaven knows we all need our diversions from time to time.

First, a bit of historical background.

Long ago, even as far back as the 13h century, sake was often aged. There were those in the aristocracy that were very fond of such sake, and typical aging periods were three or five years. Yet the truth is that most people back then just wanted a buzz, and so even though aged sake was considered precious and was more expensive, most folks were drinking freshly brewed sake.

However, to finance wars with China and Russia, the government leveled its gaze at the potentially rich source of tax income from sake. When these Meiji-era (late 1800s) tax laws were in place, sake tax comprised more than 30% of all taxes collected.

Furthermore, in order to ensure they got their money as soon as possible, this tax was due the moment the sake was pressed, i.e. when the brewing process was completed . The tax was due, then, before they even sold the sake. Naturally, this kind of eliminated any motivation to lay sake down. No kura wanted to wait three to five years to get their money back, and also risk the sake going south (although rare today, it was not uncommon at all back then, especially with aged sake), and their revenues with it! This served the taxman quite nicely, as a faster flow of sake meant more tax revenues.

This law finally changed about 50 years ago, and brewers are now taxed when the sake ships from the kura (i.e. is sold). This opened the door for renewed aging experimentation. Today, the word koshu means aged sake, but it can also refer to sake that has inadvertently aged for one reason or another, especially in a less than positive light, when compared with newer sake, or “shinshu.” But sake deliberately matured for long periods is known as “choki jukusei-shu.” (The word koshu will always do in a pinch!)

So aging sake is not a new concept. However – and this is important – only a very, very minuscule amount of sake is aged. The amount of sake laid down each year to age for a significant time (more than three years) is about one percent of one percent of one percent; that’s it. Why is this? There are two reasons, in my opinion. One, aged sake is a totally different animal from what we know as premium sake today, and two, aged sake is all over the map in its final form.

Looking at the first reason in more depth, consider the nature of today’s premium ginjo sake: light, aromatic, fruity, and lively are a few words that describe fine sake as we know it today. Aged sake – in its most drastically altered forms – can be dark brown in color, heavy, cloying, musty, and rich. It is completely different from what we know and love as fresh sake. It is, in short, a totally different beverage. Granted, aged sake can be just as complex and deep as fresh ginjo, but otherwise unrecognizable as sake. Sure, it can be enjoyable, but it’s not sake as we have come to know it.

A quick caveat to cover my butt: some sake is aged at lower temperatures and at conditions that do not alter the color or flavor in these above-mentioned ways, but rather in ways that present a more well-rounded sake with greater integration of the various flavors and aromas. This kind of aged sake is very sake-like indeed.

This caveat leads to the second point: methods of aging sake, and the results those methods leads to, are all over the map. There is no one way sake is aged, and there is no one way aged sake should end up. Some brewers will age sake in large tanks at room temperature. Others will use tanks at refrigerated temperatures, others in bottles at various temperatures including freezing temperatures. And, yet others will use hybrid methods, aging in tanks for a few years, draining off to leave sediments behind, transferring to bottles, and aging longer at colder temperatures. There is no “one way.”

Each one of these methods will lead to vastly different results. In general, higher aging temperatures and larger vessels (i.e. tanks vs. bottles) yield more drastic changes in color and heaviness of flavor. Colder temperatures and smaller vessels produce less noticeable, more subtle variations. But it is all referred to as aged sake.

Further complicating all of this is the grade of the sake that was laid down to begin with. Usually, the lower the grade of sake, the less well it stands up to the tests of time. At the risk of oversimplifying, higher grades – like ginjo-shu – aged more gracefully.

For example, on one end of the spectrum is Chiyo no Kame of Ehime, who has one daiginjo product aged ten years at freezing temperatures. It is very hard to tell any difference at all between that and recently brewed sake, other than the flavor is quite well-rounded. On the other end of that spectrum is Daruma Masamune of Gifu, who will age some of their sake for 20 years at room temperature. This stuff is dark like soy sauce, and wildly strong in flavor – although enjoyable to many for what it is.

And, hovering somewhere in the complex middle is Azuma Rikishi of Tochigi, who has the most organized aging program that I know of. They age for three years in a tank, then bottle, aging for five to ten years longer at 6C. (Indeed, this sake is precious.)

And what about aging yourself, either deliberately or inadvertently? Feel free to try it, and know that sake will begin to change noticeably in about a year (depending on storage conditions). You may even like what happens to it over time. But my mantra on aging sake at home reads thus: if you want to taste a sake – THE WAY THE BREWER WANTED YOU TO ENJOY IT – then drink it young, like within a year, and keep it cool until then.

And again, all of this complexity and variation applies to but a drop in the bucket of all sake produced. Hence my reserve at promoting it too much. I think it is much more important for people to know a junmai-shu from a ginjo-shu from a run of the mill table sake, or to know a typical Niigata style from a typical Shizuoka profile. I think it is more important for the world at large to come to know what truly good sake is, how to enjoy it, what to look for, and what to serve on the table with it. Most importantly, we all need to taste enough to know what we personally like in a sake (which is all that really matters).

When this understanding reaches a critical mass, we can all venture into more tangential styles. Otherwise, we have a tendency to immediately head toward the different styles, the diversions, the rare stuff – which in the case of koshu is a very small world, and not necessarily better.

So, at the end of the day, if you remember one line from this tirade, even if it is a slightly limiting generalization, let it be this: By and large, sake does not improve with age. Drink it young.

But, in the end, everything written here is a generalization, and is just my opinion. It’s all about enjoyment. As I mentioned, I myself do enjoy some koshu from time to time. And to not talk about aged sake is to do readers a great disservice.

BY: The Brewing Year Dating System

As explained above, sometimes sake is aged by the kura before being released. And, very often, they will tell you right there on the label that it is “3-year koshu” or “5-year koshu,” with the term “jukusei” (aged, or matured) sometimes used instead. Of course, this information is only useful if you know that this sake was only recently released from the kura – if it has been sitting on someone’s shelf for a while, that time must be factored in.

But sometimes, we simply see an indication of the year in which it was brewed. This should make it all simpler – provided we know how to read that information. The problem stems from two points: one, Japan does not use the same dating system as the West, but rather a year-numbering system based on the reign of the current emperor, and two, a given sake brewing season stretches across two calendar years. Butツ this article will clear it all up for you!

First of all, while Japan does relate to the fact that this is 2003, officially and traditionally it is called Heisei 15, or the 15th year of the era of Heisei. So just remember that and you are half way golden. If a bottle is labeled as being brewed in year 10, that is five years ago, so 1998. A bit of a mathematical hassle, especially when drinking, but not an insurmountable obstacle.

Next, sake brewing starts in the fall of one year and ends in the spring. So, if a sake were labeled only as year 15, we would not know if it was the season of Fall 14 to Spring 15, or Fall 15 to Spring 16. These are two different years as far as brewing is concerned, and can be likened to two totally different vintages in the wine world. So, we need a bit more detail.

This point did not escape the clever folks at the ministry of taxation, who also needed a more efficient way to tax kura on their output. And so long ago they came up with the concept of the “Brewing Year,” or BY. Just like fiscal years can differ from calendar years, in Japan the Brewing Year runs from July 1 to June 30th of the following year. This, then, encompasses the entire brewing season in one 12-month period.

So, BY14 (it might also appear 14BY) ran from July 1 2002 until June 30 2003. And sake brewed last fall and into this spring would be considered part of BY14.

How does this help you? Well, when you see an aged sake labeled, for example, BY10, you know that since Heisei 10 was 1998, this sake was brewed in the season beginning in the fall of 1998, and running into the spring of 1999. So it is about five years old. BY6, as one final example, would be four years older, having been brewed between fall of 1994 and spring of 1995.

Again, since aged sake is such a small drop in the bucket, you will rarely come across this. But if and when you see this arcane nomenclature, you will know precisely how old your sake is.

Sake Temperature: Hot or Cold?

Sake and Temperature

Tokkuri, Guinomi, photo courtesy Robert YellinAt what temperature should you enjoy sake?

As with all things sake-related, there is a long answer and short answer.

Short Answer

Most good sake should be enjoyed slightly chilled. Cheaper sake is served warm.

Long Answer

Indeed, sake was traditionally served warmed. This was related to the fact that sake was, until about 30 or 40 years ago, much, much rougher, fuller, sweeter and woodier than it is now. Warming suited it much better back then.

Wooden (cedar) tanks were used for brewing for centuries, slowly being phased out in the early part of the 20th century. Also, before glass bottles, for centuries sake was then stored in wooden casks (also cedar). As such, they took on a tremendously woody flavor and aroma. While this might have been enjoyable, today’s fine fragrances and subtle flavors would be bludgeoned out of existence by such wood (although you can still enjoy such sake today; it is called “taru-zake”).

But in the end, one big reason sake was warmed in the old days was that it was woodier and rougher, and warming masked a lot of the less-than-refined aspects.

However, about 30 to 40 years ago, things began to change in the sake-brewing world. Brewing technology and the availability of new strains of sake rice (and the equipment to properly handle it) and new pure yeast strains led to sake with bold and lively taste and fragrance profiles. Much more delicate and fragile sake also came about, with fruit and flowery essences all of a sudden becoming part of the equation. Sake like this would be effectively neutered of the very qualities it was brewed to exude, if heated. Today, sake is brewed in stainless steel, ceramic-lined tanks, and stored in bottles. Rice milling technology is immeasurably better than it was even just 30 or 40 years ago. Most premium sake today is delicate, fragrant, and elegant. To heat such sake would be to destroy precisely the flavors and fragrances the brewer worked so hard to have you enjoy!

So: Most good sake should be enjoyed slightly chilled. How chilled? The short answer: like white wine or even a little warmer. Much sake peaks in flavor just below room temperature. The long answer: like wine and any other premium beverage, each sake will be different at even slightly different temperatures. Every sake will appeal to some people at one temperature, and other people at another temperature. What appeals to you most is the best temperature for that sake, for you, on that day.

Sake should never be served too cold

When sake is over-chilled you cannot taste anything. Sure, flaws would be covered up, but so would more refined aspects of the sake, as nothing is discernible. If someone tells you to enjoy sake ice cold, it is because they know their sake is inferior. To propagate such an untruth is unethical and unfair to brewers of fine sake.

But wait! It is not all that simple!

The long answer continues. The truth is, there is plenty of good sake, premium ginjo and sometimes daiginjo even, that goes quite well when gently warmed. (But never too hot!) Plenty indeed. It is too easy, in this era of chilled premium ginjo sake, to overlook how fine warm sake can be, especially in the winter.

So, how do you know whether to warm a sake or to serve it chilled? How can you tell – from the label or otherwise – if a sake will be good when warmed, or better chilled? Fortunately or unfortunately, it is purely a matter of personal preference.

Many sakagura (sake breweries) will tell you that a particular sake of theirs is especially tasty when warmed. Some list that information right on the label. Also, tasting a wide variety of sake at a wide variety of temperatures will soon make it clear which flavor profiles appeal to you at warm temperatures and which do not. So, not surprisingly, the more you taste, the more you will know. Recommendations of friends, restaurateurs, or shopkeepers can also can be useful in knowing which temperatures to serve a sake. But in the end, you have to just taste a lot and figure it out for yourself.


SAKE CONFIDENTAL 

Interested in learning more about sake?

Check out my book “Sake Confidential” on Amazon.

Sake Confidential is the perfect FAQ for beginners, experts, and sommeliers.

Indexed for easy reference with suggested brands and label photos. Includes:

  • Sake Secrets: junmai vs. non-junmai, namazake, aging, dry vs. sweet, ginjo, warm vs. chilled, nigori, water, yeast, rice, regionality
  • How the Industry Really Works: pricing, contests, distribution, glassware, milling, food pairing
  • The Brewer’s Art Revealed: koji-making, brewers’ guilds, grading

 


SAKE INDUSTRY NEWS

If you are interested in staying up to date with what is happening within the Sake Industry and also information on more advanced Sake topics then Sake Industry News is just for you!

Sake Industry News is a paid subscription newsletter that is sent on the first and 15th of each month. Get news from the sake industry in Japan – including trends, business news, changes and developments, and technical information on sake types and production methods that are well beyond the basics – sent right to your inbox. Subscribe here today! 

Each issue will consist of four or five short stories culled from public news sources about the sake industry in Japan, as well as one or more slightly longer stories and observations by myself on trends, new developments, or changes within the sake industry in Japan.

 

 

The koji

Koji is one of the crucial ingredients in sake brewing

Just what is Koji?

Koji baskets

Koji being cultivated in small trays

Koji is steamed rice that has had koji-kin, or koji mold spores, cultivated onto it. (See photo at right, which is a grain of rice cultivated with koji mold.) This magical mold, for which the official scientific name is Aspergillus Oryzae, creates several enzymes as it propagates, and these are what break the starches in rice into sugars that can be fermented by the yeast cells, which then give off carbon dioxide and alcohol. Without koji, there is no sake. For what it is worth, sake is not the only beverage in the world using koji. There are a couple of others throughout Asia. But the brewing methodologies are vastly different.

A quick comparison between the production methods of sake versus other alcoholic beverages may prove useful. Wine is fermented from grapes, which already contain sugar (glucose, to be chemically correct). This is what yeast cells need for food. There are other kinds of sugars, but they cannot be metabolized by yeast. So in winemaking, yeast is added to a liquid already containing sugar.

Beer and other beverages made from malted barley begin not with sugars, but with starches, which are molecularly monstrous. Here, brewers employ enzymes brought out in the barley malting process (where the barley is moistened and warmed, i.e. the sprouting process begun, albeit artificially) to break down the starches into sugars. These enzymes, which activate within very specific temperature ranges, chop the starch chains into much smaller sugar molecules. Some will be glucose and feed the yeast, some will be chemically different sugars and add to flavor.

Koji spore

Grain of rice on which koji is propagating

Back to sake. Sake is brewed from white rice stripped of its husk. There can be no malting, so the starch-chopping enzymes must come from somewhere else. Enter the cooperative koji. The dark-green spores, sprinkled onto steamed rice, graciously provide the necessary enzymes for saccharification. There are many enzymes involved in this process. Some act to create fermentable sugar (glucose), others act more to create sugars that will not ferment but will instead affect texture and flavor in a sake.

Koji production (known as seigiku) is at the very heart of the sake-brewing process. The leverage it holds over the final product is immense. From a good beginning all things flow naturally, and so it is with koji. Koji is cultivated in a special room in the kura (brewery) called the koji muro. When ready, it is mixed with more steamed rice. Initially, yeast and water are added here. In later stages of a batch, koji is transferred into the large tank within which the sake-to-be is fermenting away. It continues to do its sugar -making work, while imparting the effects of its own sensitive production, until fermentation is finished.

As an example of how sensitive yet powerful koji can be, I once had sake presented by the brewer with an apology: “Look, we just rebuilt our koji muro last year. The wood used for the walls was not quite as ready as we thought, and you can unfortunately taste the cedar wood in the sake.” Sure enough, delicious though the sake was, the faint essence of cedar was evident in the flavor and fragrance.

In general, the koji-making process takes 40 to 45 hours. During this time, the developing koji is checked and mixed constantly to ensure proper temperature and moisture, as well as an even distribution of both. As the koji mold works its way into the center of the steamed rice grains, heat is generated. Different temperatures are ideal at different stages of the process. Not only that, but these ideals will change depending on the sought-after flavor profile. The type of rice, pH and mineral content of the water, and a myriad of other things affect the way koji is made as well. These variables compound to create a process that is more art and intuition than science.

When koji is ready for use, it looks like rice with a small amount of white frosting on each grain. The smell and taste are slightly sweet, as might be expected. There is a characteristic light chestnut-like aroma that wafts wonderfully up.

In response to the demands of the times, there are several manifestations of automatic koji-making machines. Some of these are fully automatic; insert ingredients here, stand back for 42 hours, here’s your kooji. Others allow much more human intervention, some being only closed-loop temperature controlled tables. Even robotic-finger kooji mixers are out there. All of these work well; some better than others. On the quality-versus-labor-saved curve, these score very high indeed. But it is interesting to note that almost every kura in the country makes kooji for their best sake by hand.


SAKE CONFIDENTAL 

Interested in learning more about sake?

Check out my book “Sake Confidential” on Amazon.

Sake Confidential is the perfect FAQ for beginners, experts, and sommeliers.

Indexed for easy reference with suggested brands and label photos. Includes:

  • Sake Secrets: junmai vs. non-junmai, namazake, aging, dry vs. sweet, ginjo, warm vs. chilled, nigori, water, yeast, rice, regionality
  • How the Industry Really Works: pricing, contests, distribution, glassware, milling, food pairing
  • The Brewer’s Art Revealed: koji-making, brewers’ guilds, grading

 


SAKE INDUSTRY NEWS

If you are interested in staying up to date with what is happening within the Sake Industry and also information on more advanced Sake topics then Sake Industry News is just for you!

Sake Industry News is a paid subscription newsletter that is sent on the first and 15th of each month. Get news from the sake industry in Japan – including trends, business news, changes and developments, and technical information on sake types and production methods that are well beyond the basics – sent right to your inbox. Subscribe here today! 

Each issue will consist of four or five short stories culled from public news sources about the sake industry in Japan, as well as one or more slightly longer stories and observations by myself on trends, new developments, or changes within the sake industry in Japan.

 

Sake brewing process

Five crucial elements are involved in brewing sake — water, rice, technical skill, yeast, and land / weather. More than anything else, sake is a result of a brewing process that uses rice and lots of water.

In fact, water comprises as much as 80% of the final product, so fine water and fine rice are natural prerequisites if one hopes to brew great sake. But beyond that, the technical skill needed to pull this all off lies with the toji (head brewers), the type of yeast they use, and the limitations entailed by local land and weather conditions. Please visit the links shown above for a detailed review of the crucial ingredients.

Quick overview

Rice is washed and steam-cooked. This is then mixed with yeast and koji (rice cultivated with a mold known technically as aspergillus oryzae). The whole mix is then allowed to ferment, with more rice, koji, and water added in three batches over four days. This fermentation, which occurs in a large tank, is called shikomi. The quality of the rice, the degree to which the koji mold has propagated, temperature variations, and other factors are different for each shikomi. This mash is allowed to sit from 18 to 32 days, after which it is pressed, filtered and blended. This would be enough to get you through most conversations. But let us look at the main steps and processes a bit more closely.

Rice Milling

Imada yamadanishiki 70/35Note the white opaque starch packet in the center of many of the grains.

After proper sake rice (in the case of premium sake, anyway) has been secured, it is milled, or polished, to prepare it for brewing good sake. This is not as simple as it might sound, since it must be done gently so as to not generate too much heat (which adversely affects water absorption) or not crack the rice kernels (which is not good for the fermentation process). In the photo on left, the rice in top left corner is unmilled, the rice next to it has only 70% of kernel remaining, while the rice at bottom has been milled so only 35% remains. The photo at top right (with red background) shows rice ground to 50%. The amount of milling greatly influences the taste. For more on this topic, please visit Types of Sake page.

Washing and Soaking

Making sakeNext, the white powder (called nuka) left on the rice after polishing is washed away, as this makes a significant difference in the final quality of the steamed rice. (It also affects the flavor of table rice; try washing your rice very thoroughly and notice the difference in consistency and flavor.) Following that, it is soaked to attain a certain water content deemed optimum for steaming that particular rice. The degree to which the rice has been milled in the previous step determines what its pre-steaming water content should be. The more a rice has been polished, the faster it absorbs water and the shorter the soaking time. Often it is done for as little as a stopwatch-measured minute, sometimes it is done overnight.

Steaming

Next the rice is steamed. Note this is different from the way table rice is prepared. It is not mixed with water Kuji steaming riceand brought to a boil; rather, steam is brought up through the bottom of the steaming vat (traditionally called a koshiki) to work its way through the rice. This gives a firmer consistency and slightly harder outside surface and softer center. Generally, a batch of steamed rice is divided up, with some going to have koji mold sprinkled over it, and some going directly to the fermentation vat. (Photo at left: rice steaming in koshiki, or vat).

Koji Making (Seigiku)

Rice mold (photo by Kenji Nachi)This is the heart of the entire brewing process, really, and could have several chapters, if not books, written about it. Summarizing, k(LEFT) Koji being cultivated in small trays (Right) A grain of rice cultavated with koji mold (photos by Kenji Nachi)oji mold in the form of a dark, fine powder is sprinkled on steamed rice that has been cooled. It is then taken to a special room within which a higher than average humidity and temperature are maintained. Over the next 36 to 45 hours, the developing koji is checked, mixed and re-arranged constantly. The final product looks like rice grains with a slight frosting on them, and smells faintly of sweet chestnuts. Koji is used at least four times throughout the process, and is always made fresh and used immediately. Therefore, any one batch goes through the “heart of the process” at least four times. (Photo: Koji being cultivated in small trays, and a grain of rice cultavated with koji mold).

The yeast starter (shubo or moto)

Making ricePhoto at right: the moto, or shubo yeast starter, foaming away.

The moto, or shubo yeast starter, foaming away (Photo by Kenji Nachi)A yeast starter, or seed mash of sorts, is first created. This is done by mixing finished koji and plain steamed white rice from the above two steps, water and a concentration of pure yeast cells. Over the next two weeks, (typically) a concentration of yeast cells that can reach 100 million cells in one teaspoon is developed.

The Mash (Moromi)

After being moved to a larger tank, more rice, more koji and more water are added in three successive stages over four days, roughly doubling the size of the batch each time. This is the main mash, and as it ferments over the next 18 to 32 days, its temperature and other factors are measured and adjusted to create precisely the flavor profile being sought.

Pressing (joso)

Rice bagsWhen everything is just right (no easy decision!), the sake is pressed. Through one of several methods, the white lees (called kasu) and unfermented solids are pressed away, and the clear sake runs off. This is most often done by machine, although the older methods involving putting the moromi in canvas bags and squeezing the fresh sake out, or letting the sake drip out of the bags, are still used. (Photo at right: bags of moromi from which sake is being drip-pressed. Below Photo: a fune, used for pressing sake out of bags of moromi).

Filtration (roka)

After sitting for a few days to let more solids settle out, the sake is usually charcoal filtered to adjust flavor and color. This is done to different degrees at different breweries, and is goes a long way in dictating the style.

Pasteurization

Rice bagging itMost sake is then pasteurized once. This is done by heating it quickly by passing it through a pipe immersed in hot water. This process kills off bacteria and deactivates enzymes that would likely adverse flavor and color later on. Sake that is not pasteurized is called namazake, and maintains a certain freshness of flavor, although it must be kept refrigerated to protect it.

Aging

Finally, most sake is left to age about six months, rounding out the flavor, before shipping. Before shipping it is mixed with a bit of pure water to bring the near 20 percent alcohol down to 16 percent or so, and blended to ensure consistency. Also, it is usually pasteurized a second time at this stage. It is somewhat unfair to the sake-brewing craft and industry to reduce sake brewing down to the short explanation above, but excessive detail would soon go beyond the scope of this book. The basics are as explained here.

Changes Over the Years

Over the centuries, naturally there were many adjustments and changes to the sake brewing process. These arose to either make better sake, or to make sake more economically. Sometimes, advances in the economic forum also lead to improved sake quality.

One of the most important advances was the improvement in rice-polishing equipment. Originally, rice was stomped on in a vat to remove the husks. Later, water wheels and grinding stones were used. Today, there are great computer-controlled machines that will polish off the specified percentage of the outside of the grains, and do it in a specified amount of time (with longer being better). This minimizes damage from friction heat and cracked grains.

Another major advance was the use of ceramic-lined or stainless steel tanks, now the standard, over cedar tanks, which were used for hundreds of years. This has drastically improved the quality and purity of sake since the beginning of this century.

Then there is the pressing stage. Until the early 1900s, all sake was pressed by pouring the moromi into canvas bags which were then put into a large wooden box called a fune. The lid was then cranked down into the box, squeezing out the sake. Now, almost all sake is pressed with a huge, accordion-like machine that squeezes the moromi between balloon-like inflating panels, making disposal of the lees (called kasu) simple.

Almost all breweries will still press some of their best sake in the old way, using a fune. It does indeed make subtly noticeably better sake. But the accordion-like machine (called an Assaku-ki) is so much more efficient, and the fune so labor intensive, that the tradeoffs are only worth it for top-grade sake.

Most controversially, however, is the koji making equipment. It is truly amazing how the slightest differences in koji can affect the flavor of the final product. Traditionally, koji is all made by hand in wood-paneled rooms kept warm and humid. As this is such a labor-intensive step, many changes have come about, and a lot of them are rejected later. (It is interesting to note that almost all super premium sake like daiginjo is made using hand-made koji.)

There are now large machines that will perform part or all of the koji making process, doing the work of several individuals. There are countless manifestations of these, all attempting to imitate the skill and intuition of the human masters. Other changes include stainless steel instead of wood walls. The risk of the development of unwanted mold is reduced, but humidity is affected. In the end, there are countless arguments for and against these changes. Subtle changes in daily temperature and rice quality may not always be picked up by machines but, for example, sanitation can be greatly improved. Naturally, technological progress to some degree is necessary for the industry to survive.


SAKE CONFIDENTAL 

Interested in learning more about sake?

Check out my book “Sake Confidential” on Amazon.

Sake Confidential is the perfect FAQ for beginners, experts, and sommeliers.

Indexed for easy reference with suggested brands and label photos. Includes:

  • Sake Secrets: junmai vs. non-junmai, namazake, aging, dry vs. sweet, ginjo, warm vs. chilled, nigori, water, yeast, rice, regionality
  • How the Industry Really Works: pricing, contests, distribution, glassware, milling, food pairing
  • The Brewer’s Art Revealed: koji-making, brewers’ guilds, grading

 


SAKE INDUSTRY NEWS

If you are interested in staying up to date with what is happening within the Sake Industry and also information on more advanced Sake topics then Sake Industry News is just for you!

Sake Industry News is a paid subscription newsletter that is sent on the first and 15th of each month. Get news from the sake industry in Japan – including trends, business news, changes and developments, and technical information on sake types and production methods that are well beyond the basics – sent right to your inbox. Subscribe here today! 

Each issue will consist of four or five short stories culled from public news sources about the sake industry in Japan, as well as one or more slightly longer stories and observations by myself on trends, new developments, or changes within the sake industry in Japan.

 

Sake glossary

This page uses Japanese characters. To view, you may need to install the Japanese-language font pack for your browser.

Japanese
Reading
Definition

甘口
Amakuchi
Sweet in flavor

普通酒
Futsu-shu
Normal sake — anything without a special monicker

原酒
Genshu
Undiluted sake (most are slightly diluted)

吟醸酒
Ginjo-shu
Sake brewed with rice milled so that no more than 60% of the grain remains

火入れ
Hi-ire
Pasteurization

本醸造
Honjozo
Sake to which a small amount of distilled alcohol is added

地酒
Jizake
Sake from smaller kura — originally, sake from the boonies

純米酒
Junmai-shu
Sake brewed with only rice, water, and koji — no additives

辛口
Karakuchi
Dry in flavor

Kasu
The lees remaining after the sake has been pressed from the fermenting mixture

Koji
Rice onto which koji-jin has been propogated (see FAQ page, Q14)

麹菌
Koji-kin or Koji-kabi
Aspergillus Oryzae — a starch dissolving mold

Kura
A sake brewery — also known as a sakagura

蔵人
Kurabito
A brewery worker

蔵元
Kuramoto
Head of brewery

銘柄
Meigara
The ‘brand name’ of a sake

諸味
Moromi
Fermenting mixture of rice, water, koji, and yeast which yields sake

Moto
The yeast starter of a batch of sake — also, shubo

日本酒度
Nihonshu-do
The specific gravity of a sake — an indication of dryness or sweetness (see FAQ Page, Q16)

精米
Seimai
Rice polishing (milling)

精米歩合
Seimai-buai
The degree to which rice has been polished before brewing

清酒
Seishu
The official name (as far as taxes are concerned) for sake

焼酎
Shochu
A traditional Japanese distilled beverage

酒母
Shubo
The yeast starter for a batch of sake

杜氏
Toji
The head brewer at a kura

Special sake

There are many other types of sake that are less often seen than the main categories listed on the previous page. Some of these are industry marketing terms with little meaning or significance, others constitute vastly different types and styles of sake. Let us look at a few of them here below.

Nigori-zake

Nigori-zake (the s of sake becomes a z for the sake of pronounciation) is cloudy sake, sake that has not been pressed fully from the fermenting rice solids. Most people have seen it: the white, cloudy, usually opaque sake sometimes seen in shops and restaurants. That is nigori-zake, which simply means “cloudy sake.”The “clouds”are nothing more than unfermented rice solids deliberately left floating around inside.

There are several styles or forms that nigori-zake can take. Much nigori-zake is sweet and smooth and creamy in texture. Then there is the “o chunky you’l want to eat it with a fork”variety of nigori-zake.

Naturally, nigori-zake does not offer the subtlety and refinement of good premium sake. Although it can indeed be tasty and fun, the remaining lees and their flavor easily overpower any other fragrances or gentle nuances of flavor. Also, nigori-zake should always be served a bit chilled.

Yamahai-shikomi & Kimoto

Yamahai-shikomi and Kimoto sake are two variations on the brewing method in which the yeast starter is made in a special way that allows more funky yeast and bacteria to be pesent, often lending the sake a gamier, wilder flavor that can be fascinating.

That is the short answer. Here is the long answer.

From hundreds of years ago until the early 1900′s, it was thought that the rice and koji had to be mixed and crushed into a puree when creating the moto in order for them to work properly together and convert the starches to sugars. To achieve this, kurabito (brewery workers) would ram oar-like poles into the small vat for hours on end to make a smooth paste of the contents; exhausting work to say the least. This pole-ramming activity is known as yama-oroshi.

This yama-oroshi pole ramming is one of the most classic sake-brewing scenes around, and is commonly seen in paintings, and on old films at sake museums such as those at the larger breweries in Nada. It is during such activities that kurabito of old would sing traditional brewing songs, all but forgotten now, to keep them awake and active, and to help them count strokes.

Then, in 1909, Mr. Kinichiro Kagi at the National Institute for Brewing Studies discovered that all that hard work simply wasn’t necessary. If left alone, the enzymes in the koji would eventually dissolve all the rice in the developing moto anyway. No tiring pole-ramming was needed. The only catch was that you had to add a bit more water, and keep the temperature a bit warmer, a comparatively painless process. *Now you tell us!* rose the silent cry from countless exhausted brewery workers, past and present.

When it became known then that the rough part (yama-oroshi) could be ceased (hai-shi), yama-oroshi hai-shi, shortened to simply yamahai, was born.

But technology wasn’t finished poking fun at tradition. Ah, no, there was more mockery in store. In 1911 it was discovered that by adding a bit of lactic acid to the moto at the beginning, the whole thing could be accomplished in about half the time. Lactic acid is a product of the yeast life cycle, and when present in sufficient amounts, it prevents wild yeast and unwanted bacteria from proliferating and adversely affecting the flavor.

When the yamahai process is used, since the lactic acid comes into existence more slowly, a bit of funky bacteria and even wild yeast cells inevitably make it into the moto as it develops. This gives rise to gamier, more unabashed flavor profile in the end.

Yamahai moto takes about a month to develop, and can be nerve wracking as those stray bacteria and wild yeast cells can ruin a whole batch if they are not kept in check to some degree. Sanitation is paramount, and pains must be taken to keep the developing moto covered and protected.

Adding lactic acid at the beginning speeds the process up, allowing the moto to be ready for use in about two weeks. It also protects it from the start, putting everyone at ease.

This alter-ego of yamahai, in which a bit of lactic acid is added in the beginning, is known as sokujo moto, or *fast-developing* moto. Due to a characteristic resistance to new-fangled technology, it took about ten years for sokujo-moto to gain acceptance on an industry-wide basis. However, most sake today is created using sokujo moto method, as it is faster and easier and leads to a cleaner flavor. In a sense, yamahai is for those with more eclectic tastes.

Flavor-wise, what are the differences? Yamahai has a higher sweetness and acidity, with richer, deeper, significantly more pronounced flavors. A nice descriptive word for most yamahai is *gamy*. Sokujo-moto (i.e. most sake on the market) is comparatively milder and cleaner in flavor. However, there is oodles of overlap; yamahai sake can occasionally be clean and refined, and sokujo-moto sake can (once in a while) be wild and gamy. So in the end, extreme cases notwithstanding, it’s not a whole lot to get worked up about.

Many, many kura (breweries) make yamahai or kimoto sake, but not all. Some specialize in it even. Due to the strange yeastfellows involved, yamahai moto must be prepared in a separate room from the rest of the moto preparation.

The *Sake to Look For* section below lists several yamahai-shikomi sake to look for and taste. (The word shikomi here simply refers to creating a tank of sake.) Certainly a worthwhile experience.

So, what you need to take away from this newsletter, the one-liner executive summary so to speak, is this: for yamahai sake, the yeast starter was created in a slow and laborious way that allowed more wild yeasts and bacteria to become a part of the brew. This usually leads to a richer, tangier flavor. That should demystify things a bit. Anything else you need to know, your palate will tell you.

Kimoto

Beyond the standard method (sokujo moto) and the yamahai-shikomi method discussed above, there are a few other ways of creating this yeast starter.

One such method is known as kimoto. As mentioned above, until about 1920, all sake was made by mixing rice, koji, and water to a puree in order to help the yeast cells reproduce faster. This was the original method, and since originally this was the only method there was, there was no name to differentiate it from other methods. Later, they needed to give it a name, and this name was Kimoto.

Kimoto, then, is the original method. Indeed, even today, brewers creating sake made using a kimoto yeast starter will stand around a small tub and mix, mix, mix in a rhythmical, robotic action to mash up the rice, koji and yeast to a paste-like consistency. Monotonous and tiring work to be sure, but aren’t all traditional methods?

This activity, by the way, helps speed up the natural production of lactic acid in the moto. Lactic acid will then protect the developing moto from stray bacteria that would contribute to strange flavors or even spoil the sake.

A kimoto yeast starter takes a bit longer than yamahai to create, but ironically, the sake that results from these two methods is similar in flavor profile. Like sake brewed with yamahai moto, sake brewed with a kimoto moto has a higher sweetness and acidity, with richer, deeper, significantly more pronounced flavors. Bitterness in the recesses is not uncommon. As with all sake brewing methods, though, the moto used is only one factor. In fact, the intention and skill of the brewer will dictate more about the final product than how the yeast starter was created.

As kimoto can exhibit these rougher, more pronounced flavors, one does not usually see this type of brewing method used with very high grade sake. Kimoto (and yamahai as well) is more commonly seen in perhaps junmai-shu grade sake, and less so in ginjo or daiginjo sake, simply because of the usually delicate nature of ginjo and daiginjo sake. Such refined flavor profiles might be overpowered by the slightly harsher facets resulting from kimoto or yamahai.

But there are exceptions, and wonderful exceptions at that. Take Daishichi, from Fukushima, for example. Daishichi is a wonderful brewery that is not afraid to take technical risks. One of these risks was to be the first brewery to brew a ginjo-shu (and then a daiginjo-shu) from a kimoto yeast starter. Although now there are many other premium kimoto sake, it is far from being a common practice in ginjo-shu brewing.

Note, as alluded to above, that whether or not a sake is kimoto, yamahai, or sokujo moto is independent of its grade. There are kimoto and yamahai sake that are of all grades: futsuu-shu, junmai-shu, honjo-zo, and all forms of ginjo-shu (straight ginjo, junmai ginjo, straight daiginjo, and junmai daiginjo). They are but methods of creating the yeast starter.

Nama-zake and its variations

Although more easily found within Japan than without, nama-zake is one of the most easily enjoyable types of sake on the market.

In short, nama-zake is unpasteurized sake. Almost all sake (anything not labeled nama; probably 99% of all sake on the market) has been pasteurized twice; once just after brewing, and once again after a maturation period or before shipping. This is done by either running the sake through a pipe submerged in hot water (about 65C is the norm), or submerging already bottled sake in same.

Pasteurization is done to deactivate heat-sensitive enzymes and microorganisms left over from the koji and yeast cells, thus ensuring they will not kick in at higher temperatures (room temperature is enough to activate some of these) and send the sake flavors out of kilter.

On the other hand, sake that is not pasteurized – namazake – has a much fresher, livelier and zingier touch to the flavor, with usually a much more active aromatic aspect. Although care and refrigeration are needed to keep it fresh, and although the sake overall is much less stable, it often can be worth the hassle and effort.

Note, however, that there are several variations on leaving sake unpasteurized, and the handful of terms used to refer to these can be a tad confusing. In an attempt to eschew obfuscation, here is a lexicon of all things nama.

As mentioned above, most sake is pasteurized twice. When the need to differentiate arises, such fully pasteurized sake is referred to as hi-ire, or “put in the fire.”

Full-fledged nama-zake, on the other hand, can also be referred to as nama-nama, or hon-nama; these are identical terms that indicate *totally* unpasteurized sake. Again, this would be used most often in comparisons to other types of nama.

One such other type would be nama-chozo. Chozo means store, although in this case it really refers to the typically six-month maturation period, and so nama-chozo is sake that has been “chozo-ed” in its unpasteurized form, and pasteurized one time only after maturation (usually a six month period) or just before shipping.

Then there is the opposite of this, nama-zume. This is sake that has been pasteurized once before storage, but *not* pasteurized before bottling (zume comes from tsumeru, meaning “to bottle.”). When this is traditionally released in the fall, just as the weather begins to cool down, it can also be known as hiya-oroshi. Got all that?

But the difference between these two is very subtle and a bit gimmicky. Nama-chozo and nama-zume have simply both been pasteurized once only and not twice. This gives the sake stability and yet allows it to retain some of the nature of nama-zake. In theory, anyway. More often than not totally unpasteurized sake is what you want to drink.

For all its user-friendliness, however, nama-zake is not unequivocally better than pasteurized sake. On the contrary, often that lively zing imparted by omitting pasteurization can overpower more subtle aspects of the sake. All you can taste is its nama-ness, so to speak.

Yet, if meticulous care is taken by the brewer in terms of storage temperature and preventing oxidation, the lissome freshness is more often than not an enhancement. Just be aware that there are various opinions out there.

Fortunately, in the end, all you really need to remember is that nama-zake is *usually* fresher, livelier and more stimulatingly enjoyable than pasteurized sake. That’s the raw truth about nama.

Nama-zake is great for hanami for several reasons. One reason is – like the beautiful, ephemeral sakura – nama-zake is short lived. Nama-zake must be kept quite cold, or there is a very high possibility it will undergo drastic changes.

When nama-zake goes bad, it becomes sweet and yeasty and quite funky in an unpleasant way, a condition known as hi-ochi. A white muck that floats suspended in the bottle (like lava in those old lava lamps) usually appears in bad nama-zake; that is your visual clue to steer clear.) Don’t confuse this with nigori-zake, however, which is deliberately left cloudy with the remains of rice.)

Although available all year round to some degree, nama-zake is most commonly found in the spring, just when the traditional brewing season ends. Nama-zake and spring seem to go well as they share youth and newness on many levels.

Note, too, that whether or not a sake is pasteurized is independent of its grade. You can find nama-zake in almost all grades of sake. Whether or not it has been pasteurized does not inherently affect its grade, be in table sake, junmai-shu, ginjo or daiginjo. It is simply but one more dimension of potential enjoyment.

For a glossary of all things sake, click here.


SAKE CONFIDENTAL 

Interested in learning more about sake?

Check out my book “Sake Confidential” on Amazon.

Sake Confidential is the perfect FAQ for beginners, experts, and sommeliers.

Indexed for easy reference with suggested brands and label photos. Includes:

  • Sake Secrets: junmai vs. non-junmai, namazake, aging, dry vs. sweet, ginjo, warm vs. chilled, nigori, water, yeast, rice, regionality
  • How the Industry Really Works: pricing, contests, distribution, glassware, milling, food pairing
  • The Brewer’s Art Revealed: koji-making, brewers’ guilds, grading

 


SAKE INDUSTRY NEWS

If you are interested in staying up to date with what is happening within the Sake Industry and also information on more advanced Sake topics then Sake Industry News is just for you!

Sake Industry News is a paid subscription newsletter that is sent on the first and 15th of each month. Get news from the sake industry in Japan – including trends, business news, changes and developments, and technical information on sake types and production methods that are well beyond the basics – sent right to your inbox. Subscribe here today! 

Each issue will consist of four or five short stories culled from public news sources about the sake industry in Japan, as well as one or more slightly longer stories and observations by myself on trends, new developments, or changes within the sake industry in Japan.

 

Sake flavor profiles

The Various Grades of Sake

Here are the main sake types and their flavor profiles, plus several common sake terms that will help you to understand what kind of sake you are tasting or buying, and help you determine your own likes and dislikes.

There are four basic types of sake, and each requires a different brewing method. Naturally, there are other special brewing techniques that are less common, but the four basic sake types are:

  1. Junmai-shu (rice only; no adding of distilled alcohol)
  2. Honjozo-shu (a tad of distilled alcohol is added)
  3. Ginjo-shu (highly milled rice, with or without alcohol added)
  4. Daiginjo-shu (even more highly milled rice, with/without added alcohol)
  5. Nama-zake (refers to sake that is NOT pasteurized) and basically is mutually independent of the above four (Read in great depth about nama-zake here.)

These four combine to form what is known as Special Designation Sake, or “Tokutei Meishoshu.” Each of these has a general flavor profile based on the brewing methods employed. However, there is a whole lot of overlap between them. Very very often one cannot tell which type one is drinking,for some of these sake taste above their class (or just different) and others don’t live up to the billing (or are just different). So many things come into play — rice, water, skill of brewers — that it is next to impossible to isolate how a sake will taste based on which “type” it is, nor to fault it when it doesn’t fit the mold. Nonetheless, generalities can be useful. So enough with the disclaimers and let’s move on to our definitions:

Text Definitions

Junmai-shu: This can be translated as pure rice sake. Nothing is used in its production except rice, water, and koji, the magical mold that converts the starch in the rice into fermentable and non-fermentable sugars. Junmai-shu is made with rice that has been polished (milled) so that at least 30% of the outer portion of each rice grain has been ground away. The taste of junmai-shu is usually a bit heavier and fuller than other types, and the acidity is often a touch higher as well. Click here for flavor profile and further details on junmai.

Honjozo-shu: Honjozo is sake to which a very small amount of distilled ethyl alcohol (called brewers alcohol) has been added to the fermenting sake at the final stages of production. (Water is added later, so that the overall alcohol content does not change.) Honjozo, like Junmai-shu, is made with rice that has been polished (milled) so that at least 30% of the outer portion of each rice grain has been ground away. This, plus the addition of distilled alcohol, makes the sake lighter, sometimes a bit drier, and in the opinion of many, easier to drink. It also makes the fragrance of the sake more prominent. Honjozo often makes a good candidate for warm sake. Note that most run-of-the-mill cheap sake has an excessive amount of brewers alcohol added to it, which is not good. Honjozo has only a very small amount of added alcohol. Click here for flavor profile and further details on honjozo.

Ginjo-shu: This is sake made with rice that has been polished (milled) so that no more than 60% of its original size remains. In other words, at least the outer 40% has been ground away. This removes things like fats and proteins and other things that impede fermentation and cause off-flavors. But that is only the beginning: ginjo-shu is made in a very labor intensive way, fermented at colder temperatures for a longer period of time. The flavor is more complex and delicate, and both the flavor and the fragrance are often (but not always) fruity and flowery. Click here for flavor profile and further details on ginjo-shu.

Daiginjo-shu: Daiginjo-shu is ginjo-shu made with rice polished even more, so that no more than 50% of the original size of the grain remains. Some daiginjo is made with rice polished to as far as 35%, so that 65% is ground away before brewing. Daiginjo is made in even more painstaking ways, with even more labor intensive steps. Click here for flavor profile and further details on daiginjo-shu.

Junmai Ginjo and Junmai Daiginjo: Some ginjo-shu and daiginjo-shu are also junmai-shu. So a junmai ginjo-shu is a ginjo-shu with no added ethyl alcohol. If a ginjo or daiginjo is not labeled junmai, then the added alcohol is limited to the same small amounts as honjozo.

Namazake: Namazake is sake that has not been pasteurized. It should be stored cold, or the flavor and clarity could suffer. Namazake has a fresh, lively touch to the flavor. All types of sake (junmaishu, honjozo, ginjo-shu, and daiginjo-shu) can be namazake, or not. For more detailed information on nama-zake, go here.

Flavor Profiles

Honjozo-shu taste profile

Honjozo is sake wherein a small amount of distilled pure alcohol is added to smoothen and lighten the flavor, and to make the sake a bit more fragrant. Honjozo-shu, like Junmai-shu, must be made with rice with a Seimai Buai (degree of milling) of at least 70%. This is the number you will see on the label (if it is given at all), but what it means is that the rice has been polished so that no more than 70% of the original size of the grains remains. In other words, at least 30% of the outer portion of each rice grain has been ground away. Honjozo sake is often a bit lighter than other sake, due to the small amount of grain alcohol added at the end of the ferment. Remember that this is not a bad thing, in moderation, and brewers have been doing it for hundreds of years. It is NOT simply a cost cutting measure when used within the limits prescribed by honjozo. The flavor is lighter, and magically the fragrance becomes much more prominent. Below is a typical honjozo sake.

John’s Flavor Profile – Honjozo-shu

Fragrance none ——————–X—— fragrant
Impact quiet —–X——————— explosive
Sweet/Dry sweet —–X——————— dry
Acidity soft —-X———————- puckering
Presence unassuming —-X———————- full
Complexity straightforward ———————X—– complex
Earthiness delicate ———————-X—- dank
Tail brief ———————-X—- pervasive

Honjozo-shu in details

For centuries, adding distilled pure alcohol to sake just as it completes its fermentation has been a part of the brewers’ art. Often, it is used to “cut” the sake and get more yield out of a single batch. However, when a sake is labeled “honjozo,” it means that the amount of sake is very limited, like to 120 liters per metric ton of rice used. The term honjozo indirectly means “the original brewing method,” and indicates that this is the proper way to use such added alcohol, as opposed to tossing in copious amounts, dropping the price, dulling the flavor, and lowering the hangover threshold.

This will not increase the yield much if at all. But honjozo sake is often a bit drier, lower in acidity, less cloying and fragrant than pure sake (see junmaishu). Note that premium “ginjo” sake in Japan is automatically limited to this small amount of added alcohol. In other words, you can have junmai ginjo and honjozo ginjo, but the latter is not referred to as honjo ginjo, only ginjo. That alone distinguishes if from junmai ginjo. Ginjo means sake brewed with rice milled so that no more than 60% of the grain remains. Confused?

At present, any sake that is not junmai (i.e., any sake with any added distilled alcohol at all) is taxed by the US at distilled beverage rates, making it unfeasible to import and distribute it. This will hopefully change in the not-too-distant future, allowing more premium sake into the US.

Junmai-shu taste profile

Junmaishu refers to pure sake, pure in the sense that no adjuncts (starches or sugars other than rice added to the fermenting mixture) were used, and that no brewer’s alcohol was added either. Junmai-shu, like Honzojo-shu, must be made with rice with a Seimai Buai (degree of milling) of at least 70%. This is the number you will see on the label (if it is given at all), but what it means is that the rice has been polished so that no more than 70% of the original size of the grains remains. In other words, at least 30% of the outer portion of each rice grain has been ground away. Junmai often has a fuller, richer body and a higher-than-average acidity. The nose is often not as prominent as other types of sake, nor are other parameters dependent on whether a sake is a junmai or not. Here is a typical junmai-shu flavor profile.

John’s Flavor Profile – Junmai-shu

Fragrance none —-X———————- fragrant
Impact quiet ——————X——– explosive
Sweet/Dry sweet ————-X————- dry
Acidity soft ———————-X—- puckering
Presence unassuming ———————-X—- full
Complexity straightforward —-X———————- complex
Earthiness delicate ————-X————- dank
Tail brief ——————X——– pervasive

Junmai-shu in detail

The product is nothing more than a straight fermentation of rice with the help of koji-kin (a starch-dissolving mold). Junmaishu is similar in concept to beer made according to German beer regulations, which allow nothing but malted barley, hops and water to be used. Sake that does not have the word junmaishu on the label will usually have brewer’s alcohol added (not necessarily a bad thing, mind you, if done sparingly), as well as (in lower grade stuff) sugars, artificial flavorings, acid-based additives, and a whole host of other cost-saving, hangover-promoting nastiest. Do keep this in mind though — the idea that real sake drinkers drink only junmaishu is a fallacy. It is not necessarily what everyone prefers, nor does it imply that everything else is rotgut. Not by any stretch. Junmaishu generally is a tad more full and heavy in flavor than other types, and often the acidity is slightly higher as well. It is often a good choice for matching with food, as it makes its presence known a bit more assertively than lighter sake.

Ginjo-shu taste profile

Ginjo sake is much more delicate and light and complex than the above two. Why? The rice has had the outer 40% of the grains polished away, leaving the inner 60% left. This is opposed to leaving 70% for junnmai and honjozo. On top of that, special yeast, lower fermentation temperatures, and labor-intensive techniques make for fragrant, intricate brews. Here is a typical ginjo chart.

John’s Flavor Profile – Ginjo-shu

Fragrance none ———————–X— fragrant
Impact quiet ——-X——————- explosive
Sweet/Dry sweet ——-X——————- dry
Acidity soft ——X——————– puckering
Presence unassuming ——X——————– full
Complexity straightforward ———————–X— complex
Earthiness delicate –X———————— dank
Tail brief ——X——————– pervasive

Daiginjo-shu taste profile

Finally, there is daiginjo. This is fundamentally speaking an extension of daiginjo. The rice has been milled so that no more than 50% of the original size of the grains remains, although this often goes to 35%, and even more care has been taken to create sake representative of the pinnacle of the craft. Although there is a range of styles of daiginjo, and not all look like the chart below, here is a somewhat typical example.

John’s Flavor Profile – Daiginjo-shu

Fragrance none ————————–X fragrant
Impact quiet ———-X—————- explosive
Sweet/Dry sweet ———-X—————- dry
Acidity soft ——–X—————— puckering
Presence unassuming ———————–X— full
Complexity straightforward ————————–X complex
Earthiness delicate ———-X—————- dank
Tail brief -X————————- pervasive

Other Important Sake Terms

Nigori-zake: Sake that is unfiltered.
Seishu Seishu: The legal name for sake, differentiating it from other alcoholic beverages.
Futsuu-shu: Any sake that is not junmai-shu, honjozo, ginjo-shu or daiginjo.
Jizake Jizake: Vague term that usually means sake from smaller breweries out in the boonies; sake that is not mass-produced.

Seimai Buai (or Rice Milling)

Junmai-shu and Honjozo-shu must be made with rice with a Seimai Buai (degree of milling) of at least 70%. This is the number you will see on the label (if it is given at all), but what it means is that the rice has been polished so that no more than 70% of the original size of the grains remains. In other words, at least 30% of the outer portion of each rice grain has been ground away.

Ginjo-shu, whether Junmai Ginjo-sho or non-Junmai Ginjo (usually called aru-ten ginjo, one does not say Honjo Ginjo) must have a Seimai Buai of at least 60%, meaning that the outer 40% or more has been polished away.

Daiginjo and Junmai Daiginjo (same phraseology rules apply here) must be made with rice with a Seimai Buai of 50% or more, meaning at least the outer half has been ground away. Often, Daiginjo goes as far as a 35% Seimai Buai.

What happens to the powder (called nuka) that is ground away? It is often used in Japanese-style cakes, for livestock feed, and can also be fermented and distilled elsewhere in a separate process. Nothing is wasted.

Remember, adding alcohol does not make a sake lower grade; it is part of one manner of brewing that produces specific results (like lighter, more fragrant sake with a more robust structure and perhaps longer shelf life). There are junmai purists, but there are those who feel adding alcohol is the correct way to brew, as is indicated in old brewing texts. Avoid the hype!


SAKE CONFIDENTAL 

Interested in learning more about sake?

Check out my book “Sake Confidential” on Amazon.

Sake Confidential is the perfect FAQ for beginners, experts, and sommeliers.

Indexed for easy reference with suggested brands and label photos. Includes:

  • Sake Secrets: junmai vs. non-junmai, namazake, aging, dry vs. sweet, ginjo, warm vs. chilled, nigori, water, yeast, rice, regionality
  • How the Industry Really Works: pricing, contests, distribution, glassware, milling, food pairing
  • The Brewer’s Art Revealed: koji-making, brewers’ guilds, grading

 


SAKE INDUSTRY NEWS

If you are interested in staying up to date with what is happening within the Sake Industry and also information on more advanced Sake topics then Sake Industry News is just for you!

Sake Industry News is a paid subscription newsletter that is sent on the first and 15th of each month. Get news from the sake industry in Japan – including trends, business news, changes and developments, and technical information on sake types and production methods that are well beyond the basics – sent right to your inbox. Subscribe here today! 

Each issue will consist of four or five short stories culled from public news sources about the sake industry in Japan, as well as one or more slightly longer stories and observations by myself on trends, new developments, or changes within the sake industry in Japan.