The main raw materials of sake are rice and water, and rice is the only fermentable material used in its production. And just as the grapes used to make good wine are significantly different from those bought at the supermarket, the rice used to make premium sake is significantly different from that which we find sitting under the fish in sushi, or in bowls in meals.

In truth, most sake – perhaps 75 percent of all produced – is actually made from regular table rice. And a lot of this is perfectly tasty sake. But when we meander into the realm of premium sake, especially ginjo, almost always it is made with proper sake rice, which is significantly different from regular table rice.

While there are many ways that sake rice differs from other types (size of the stalk, size of the grains, more starch, less fat and protein), the most talked about of them is surely the presence of a shinpaku.

In proper sake rice, the higher-than-normal starch content is mostly concentrated in the center of the grains. Why is this so heart-warmingly special? Because we want to get at the starch, which will be converted to sugar and then into alcohol. But we don’t want the fat and protein, which would lead to off-flavors and contribute rough elements to the sake. So with the starch neatly concentrated in the center, all we need to do is to mill away more and more of the outside of the grain, and by doing that we remove the fat and protein and leave only the starchy goodies behind.

That packet of starch in the center is called the shinpaku. The word itself is written with the characters for “heart” and “white,” and not surprisingly, when one looks at sake rice, you can clearly see that the heart of the grain is an opaque white, with everything around that being somewhat translucent. In regular rice, however, the color is uniform throughout since the starch, fat and protein are more mixed up and uniformly distributed.

Why does sake rice have the starch in the center, and fat and protein around that? Part of it is just the nature of those strains. But it also has to do with climate and growing conditions. Regions with hot days and cold nights are best for sake rice production, as the cold nights coerce the plant to send the starch to the center of the grains. In “bad years” for rice, seasons being too hot or too cold, too wet or too dry, or when the night and day temperatures had less variance, fewer grains will have a decent shinpaku.

What is interesting is that it is not the starch itself that makes the center of the grains white. What happens is that the starch molecules are round at the ends, and as they rush to get to the middle they don’t interlock well, and they leave tiny air pockets between their ends. These diffuse light passing through, giving the opaque appearance we see.

Beyond different varieties or strains of rice, within each type there are grades based upon how well it was grown. This is a function of locale, climate, and skill of the producer. And one of the big points of assessment is the percentage of grains with a visible shinpaku. This is also one of the standards in the official assessment of sake rice versus table rice in general.

There are many more factors beyond the shinpaku and its size that are involved in qualifying good sake rice. But the shinpaku is the most visible, if not the most talked about.

Note, too, that one can make decent-to-good sake from regular rice. It takes a good toji and good tools, but just a few of the many examples of table rice from which decent sake is brewed are Koshihikari, Sasanishiki, the illustrious Kame no O. So one can indeed make decent sake from table rice. It’s just easier to do so with real sake rice.

Finally, the question often arises, if a brewer is using table rice, why do they bother to mill down to 70, 60 or even 50 percent of the original size? If table rice has no shinpaku, isn’t that meaningless and wasteful?

The answer lies in the fact that in truth, all rice to some degree has more starch in the center and more fat and protein near the surface, whether or not this is manifested in a visible shinpaku. It is just that this is all more distinct in sake rice; much more starch is in the center, and much more of the fat and protein is near the outside of the grains.

So more milling will have a positive effect on table rice as well when it is used in sake brewing, just not as pronounced as with good sake rice. As usual with sake-related things, it’s all a tad vague.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Sake Professional Course
in Japan 

Tuesday, January 10 ~ Saturday, January 14, 2017
Recognized by the Sake Education Council

No sake stone remains left unturned

“Quite simply, the best and most thorough sake education on the planet.”

From Tuesday, January 10 to Saturday, January 14,  I will hold the 14th  running (and 38th overall) of the Sake Professional Course in Japan.

The Sake Professional Course in Japan is far and away the best possible sake education in existence. Three days of lecture and tasting, each evening capped off with dinner and fine, fine sake, followed by two days spent visiting four sake breweries of different size and scale – punctuated again with fine sake and a great meal each evening make this course as comprehensive as it could be. If you are serious about sake, and especially about working with sake, there is no other course for you; this is it. Satisfaction is guaranteed.

The course is recognized by the not-for-profit organization The Sake Education Council, and those that complete it will be qualified to take the exam for Certified Sake Specialist, which will be offered near the end of the week.

The course will be held from the morning of Tuesday, January 10 to the evening of Saturday, January 14,2017, and will be focused in Tokyo, but with a two- day excursion to the Osaka – Kyoto – Kobe area to visit four sake breweries of various scale. Geared toward professionals, but open to anyone with an interest in sake, this course will begin with the basics, and will provide the environment for a focused, intense, and concerted training period. It will consist of classroom sessions on all things sake-related, followed by relevant tasting sessions, four sake brewery visits, and exposure to countless brands and styles in several settings, both in comparison to other sake, and with food. Participants will stay together at hotels in Tokyo and Osaka. Lectures will take place in a comfortable classroom, and evening meals will be off-site at various sake- related establishments.

The goal of this course is that “no sake stone remains left unturned,” and the motto is “exceed expectations.”

During the three classroom days, we will discuss various aspects of sake and the sake world, including grades, production, rice, yeast, koji, water and more. Tastings specific to the just-discussed topics follow each lecture, thereby allowing participants to understand with their senses the theory just presented. Participants will not simply hear about differences based on rice types or yeast types, they will taste and smell them. Students will not only absorb technical data about yamahai, kimoto, nama genshu, aged sake and regionality, they will absorb the pertinent flavors and aromas within the related sake as well.

Food and sake, the state of the sake-brewing industry, the culture and history suffusing sake are regionality are just a few more of the wide range of topics to be covered. Every conceivable sake-related topic will be touched upon, and each lecture will be complimented and augmented by a relevant tasting session.

Participants will also be presented with a certificate of completion at the end of the course.

The Tokyo classroom venue is the Japan Sake and Shochu Producers Association in the Shimbashi area.

The cost for this five-day educational experience is ¥190,000. This includes all instruction and materials, as well as evening meals with plenty of sake each night. Other meals, transportation to and from as well as within Japan, and hotel are not included in the tuition. To make a reservation or if you have any questions at all, please send an email to John Gauntner at sakeguy@gol.com .

For more information, a downloadable pdf announcement and a view of the daily syllabus, please go here . Testimonials from past participants can be found here as well.

In the April issue of  blog, archived here, I wrote comprehensively and effusively about Yamada Nishiki, the current king of sake rice varieties. It is the most widely grown, and – amongst the 100 or so sake rice varieties in use today – it most easily lets brewers make the best sake they can.

Note the choice of wording. That diction was chosen to represent what most brewers and sake professionals try to convey. Yamada Nishiki itself does not necessarily lead to great sake; however, in the hands of a good toji, it is much easier to make great sake using that rice than any other. While certainly there are many opinions, most would agree on this, methinks.

What that really implies is, in the end, the skill, intention and techniques employed by a brewer contribute more to the final nature of a sake than the choice of rice. But the rice is also an extremely important factor, as that allows the brewer to work his or her craft to the utmost.

Curiously, many a toji (master brewer) will insist that it is his or her main role is to create a good environment for the koji and yeast so as to allow the sake to brew itself, and then basically get out of the way. But even through that interpretation, great rice like Yamada Nishiki makes that job easier.

As much adulation as I lavished upon it a few months ago, there is more to say that is historically quite interesting. Let us look at that here.

Before launching into its history and roots, let’s quickly review why it is significantly easier to make good sake using Yamada Nishiki. The grains are large, which means more potential for fermentable starch inside. The starches are concentrated in a ball of starch in the middle, and well centered, meaning it is easy to mill the outer fat and protein away, revealing only the starch. And, that protein and fat are at low levels to begin with, lowering the potential for off-flavors.

And again: it is favored by brewers less for how it ends up tasting than for how it behaves and how it can be handled in the fermenting mash. For example, it dissolves at an ideal, manageable speed. If the rice breaks down and dissolves and ferments too quickly, it can lead to a lot of off-flavors. But if it does not dissolve fast enough, the flavor has no character, or breadth or depth. Neither extreme is good, and Yamada Nishiki walks that fine line.

Looking back, there are a number of events and political changes that brought about the phenomenon of Yamada Nishiki.

The first big change was in 1874, six years after the Meiji Restoration, when the government changed the way rice growers were taxed. Until that time, rice farmers paid taxes with rice itself; a certain chunk of all that one grew was shipped off to the government for their use.

But after that change, tax was due in money based on the amount of land they owned. This means that all of a sudden rice was a commodity, a product to be sold on the marketplace that would lead to revenue to pay such taxes and cover living expenses and savings. As such, the more one grew the more one made, and farmers were all of a sudden very motivated to maximize yields and to do that by growing high-yield rice varieties. Sake rice varieties are decidedly not that kind of rice. So, even though demand for rice was increasing, the production of sake rice with its low yields began do prodigiously drop.

Then, in 1893, the government undertook research to identify and develop strains of rice more conducive to modern times and cultivation methods.

They formed a national agricultural research center and gathered all the rice types from all the localities they could, selected from amongst them a lineup that was particularly good, and got going with the research. The next year, Hyogo Prefecture started their own version of that research center that aligned their work with that of the national government. They then started looking for varieties that would be suitable to be selected as main ones to be used in a wider expansion that would benefit Hyogo’s agricultural economy.

Still, as mentioned above, sake rice production was on the decline. Compared to the easy to sell table rice, sake rice was hard to grow, it is quite tall and therefore falls over easily, and yields per field are much lower. It therefore costs farmers more to grow it, and there is less of a market for it. So in order to secure the high quality sake rice they needed, the brewers of Nada (modern day Kobe and Nishinomiya cities in the same prefecture, Hyogo, where the largest breweries have been for 250 years) created a contractual system with the farmers in the region (then known as the Harima region, now just a part of Hyogo) to secure a stable supply at a price that made it worth it to the farming community.

From about 1897, farmers and Nada brewers worked back and forth and hammered out these agreements that led to an system called muramai seido, which still exists to some degree today. It identified the best rice fields in Harima and set relative prices on rice from the surrounding fields as well. Once this was established, rice producing towns and villages or Harima began to sell their rice as a group, and the big brewers of Nada would purchase rice from those villages. This close cooperation helped the sake brewers to train and raise great rice farmers nearby. Note, though, that this all began even before Yamada Nishiki was created, and the rice from the Harima region was not as valued as it would later become.

Next, in 1912, the first rice varieties suitable for sake brewing that would promoted by the government as suitable for both large-scale cultivation and good for sake brewing (i.e. “sake rice”) were selected: Yamadaho and Wataribune. (Remember those names!)

Then in 1923, they manually crossbred Yamadaho and a version of Wataribune called Tankan Wataribune (“short-stalk” Wataribune) to create one strain that would be used for research. It was given the unglamorous name of Yama-watari 50-7 during that research stage. It did in fact get selected for as a rice the government would promote, and was in 1932 certified as a bona fide new rice type. Next it went into feasibility testing to assess its suitability to large scale production. Obviously, it passed, and was finally christened Yamada Nishiki in 1936.

However, it was not immediately recognized for its greatness and languished for a few years.

This is because the Nada brewers strongly preferred to use rice from what was then called the Hokusetsu region, which is now the northern part of neighboring Osaka Prefecture. They insisted it was softer and that it was easy to make koji using it. It was also considered to be fragrant and encouraged vigorous fermentation.

While this also may have been true, the truth is that they were very accustomed to the rice they had been using, and they were concerned that if they tried a new rice, it might be hard to get it to behave as they wanted to. It was easier to stick with what they knew. The risk of sake spoiling during fermentation, rendering the entire tank wasted, was higher in those days, and throwing another variable into the mix only increased the possibility of that happening.

Yamada Nishiki’s big break, so to speak, came in 1942, when the war necessitated rationing of rice. The rules surrounding this dictated that the brewers were not allowed to bring in rice from other prefectures, and had to use rice grown in their own prefecture. This seems natural considering the circumstances of the day.

So that meant that Nada brewers (remember, Nada is in Hyogo Prefecture, the next prefecture westward from Osaka) had to use Hyogo rice, not Osaka rice. And this meant that the brewers had no choice but to try this new Yamada Nishiki stuff from Hyogo.

Once they began to use it, though, they be like, “whoa, this stuff is good!” Using it, they found it was even easier to make good sake, and so turned their attention toward using increasingly more Yamada Nishiki. While it can be expensive, and while there are other great rice types, Hyogo-grown Yamada is still most brewers’ choice for at least their most extravagant sake.It has gradually grown in usage, but has always remained comparatively expensive. Although it is now the most widely grown sake rice, but it only took this lead in the mid-90s. Currently in Hyogo alone there are 5500 people growing it.

One reason it remains so good is that Hyogo growers take very good care of the DNA, so to speak. If one grows any rice and just haphazardly uses last year’s seeds to grow this year’s rice, pollen et al from other rice types will naturally get mixed in and the sake will lose its purity and its erstwhile main characteristics will become diluted. So at the sake rice research center in Hyoto, each and every seedling is inspected one at a time to be sure it has has maintained the original and necessary characteristics of Yamada Nishiki.

These are then grown to yield more seeds, which are then grown to yield even more seeds, that are then distributed to seed cooperatives, who then distribute the seeds to the farmers to use to grow the rice. So count ‘em: that is only three generations from purity each year, no seeds are any more than three generations from individually inspected and assessed purity. Dig that.

Of the myriad ways to enjoy sake, of course appreciating its flavors and aromas and its relaxing benefits are the most accessible. But the behind-the-scenes history, anecdotes and conversation fodder equally enjoyable. Well; almost.

Remember the roots of the rice the next time you enjoy Yamada Nishiki in a cup.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Sake Professional Course in Japan

From Tuesday, January 10 through Saturday, January 14, I will hold the annual Japan-based running of the Sake Professional Course in Tokyo, Kyoto and Osaka. For more information and/or to make a reservation, please send me an email to that purport.

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

What else makes your sake taste and smell as it does?

In a previous post, we began talking about the “flavor elements of sake,” i.e. what things – ingredients, methods and “after-care” – combine in various ways to make the sake before you taste and smell the way it does. And last month we looked at the main ingredients and their contributions. Rice, water, yeast and koji all play their roles, and those roles are intertwined. If you missed that, you can check it out here.

This time around, let us consider the following brewing processes, the choice of which will alter the path a sake-in-waiting will tread. While there is potentially no end to the points would could consider, let us narrow it down to six: milling, yeast starter, pressing, pasteurization, whether or not added alcohol has been used, and aging.

And just like the ingredients side of things, none of these six processes have an absolutely guaranteed air-tight cause and effect relationship with the final sake. All are intertwined with the many other choices involved. But there are tendencies for sake made with these methods to end up tasting and smelling a certain way. So let us look at those admittedly tenuous-yet-valid connections.

Milling
More than anything else, milling affects lightness: the more the rice is milled before brewing begins, the lighter and more refined the sake will be. But milling affects more than just the lightness as well – more highly milled rice can indirectly lead to more fruity aromas. And other things affect lightness or heaviness as well. But in general, the more you mill the rice, the lighter and more refined the sake will be.

This is because milling the rice more takes away increasingly more of the fat and protein lurking near the surface that lead to richer, fuller flavors.

Note that more milling is not always better, even though that point is used often in product marketing. Lighter sake is not unequivocally better than richer sake; not at all. And more milling does not guarantee a lighter sake. But the tendency is in fact there.

Yeast Starter
More than anything else, the choice of yeast starter affects flavor elements like sweetness, acidity and umami, expressed perhaps as “clean-ness versus richness.”

This section could be expanded to fill several books, at least. But since we do not have that luxury now, let us break it down a bit. There are three main ways of preparing the yeast starter, a few less mainstream but very valid ways, and tons of variations beyond that.

What are those three main methods? Wincing at how inappropriate it is to constrain them to a single paragraph, they are: sokujo, kimoto and yamahai. Sokuju the most modern (yet still over a hundred years old), used to make 99 percent of all sake out there, and leads to clean sake.

Kimoto is the oldest and most traditional, very little is made, and leads to richer sake, often with a bright (almost tart) acidity and fine-grained flavor.

Yamahai is also about 100 years old and often yields richer, wilder sake with higher sweetness and acidity.

However, the above three descriptions are just tendencies, albeit solid ones to be sure. But not all yamahai is wild, not all kimoto is fine-grained, and not all sokujo is squeaky clean.

Note these three methods are also affected by everything else: milling, rice, yeast, water and more. The choice of yeast starter alone does not guarantee anything.

And the method chosen affects other things than the over-simplistic flavor profiles described above. But in short, the choice of yeast starter method affects clean-ness versus richness.

Pressing Method
More than anything else, the choice of pressing method affects expressiveness and intensity.

After a month-long fermentation period, the mash is pressed through a mesh, removing the remaining rice solids and sending the completed sake through. Not surprisingly there are a few main methods in use for this pressing step, and just as unsurprisingly they lead to different type of sake.

Machine press
Most sake is pressed using a machine that does this very efficiently. The fermented mash is forced through mesh panels leaving the dregs clinging to the mesh and the golden ambrosia comes out the other end. This machine does a great job and saves untold amounts of labor.

Fune (box press)
However, a brewer can perform this step in other ways too. One such method involves pouring several liters of the fermented mash into a meter-long cloth bag, and then piling those bags into a large, sturdy box maybe two-across, twenty-long, and ten-high – or thereabouts. The lid is then cranked down and into the box, and the sake comes out a hole in the bottom. Sake pressed in this method is usually called funa-shibori and is often more pronounced, expressive and aromatic.

Shizuku
For those brewers and sake for which this is just not going far enough, the same bags o’ mash can be tied off and hung, and not squeezed at all. This drip-pressing method is called shizuku, And the sake that drips out is even more extravagantly aromatic, expressive and definitely intense.

However, many other things affect the expressiveness and intensity of a sake; the pressing method is just one of ‘em.

So in short, machine press – just fine; funashibori (box press) –  more lively and aromatic; shizuku (drip press)  – even more intense and expressive.

Pasteurization
Most sake is pasteurized by heating it to about 60C or so for a short time. This stabilizes the product by killing off lactic bacteria and stifling enzymes that would otherwise feed those bacteria. When sake is not pasteurized it is called nama-zake, and is a very different animal.

Nama-zake can be livelier and more vibrant, often with more pronounced characteristic aromas. These aromas may be woody at first, and cheesy if the sake is not kept cold and away from oxygen.

While many find properly cared for nama to be more appealing, it is not unequivocally better – just different. Furthermore, nama-zake will mature much more quickly than pasteurized sake.

So, in short, nama is usually livelier in aromas, and pasteurized sake more settled and deep. But of course, there are exceptions.

Junmai vs. Jon-Junmai
Junmai means the sake was made with rice, water and koji only. If the junmai word is not on the bottle, then a bit of distilled alcohol has been added just after fermentation and before pressing to help extract more flavor and aroma, lighten the sake a bit, and improve shelf life as well. (Admittedly, in cheap sake lots is added to stretch yields, but in premium stuff this is neither the goal nor the result.)

Junmai types are often richer and fuller, especially compared to their non-junmai counterparts. So junmai ginjo is richer than (added-alcohol) ginjo, and junmai daiginjo is richer than (added-alcohol) daiginjo. Unless it isn’t.

Sometimes, that is simply not the case, and many people cannot tell the difference in most situations.

Ergo, in a nutshell, junmai types are slightly richer than added alcohol types. Usually.

Aging
This is the simplest of the method-related generalizations here: aged sake takes on color, a sherry-like quality, earthiness and more pronounced flavors. Many factors affect this: the milling of the original sake, whether it is junmai or added-alcohol, time, temperature and vessel.

But in its simplest form, the more mature a sake is, the more intense and sherry-like its flavors and aromas become – most of the time, that is.

Most sake is shipped and meant to be consumed young: within a year or two. Very, very little is aged for more than a couple of years. While that rabbit hole, too, is deep, fascinating and enjoyable, it is a very small part of the market for now.

Along with last month’s assessment of the main ingredients of sake, the above runs down a few of the many options a brewer has in making sake, and how those choice will more than likely – but not absolutely – affect the fine nature of the sake. A quick review of the last line in each section should suffice as a quick-n-simple assessment of how each step affects the final product, and should hopefully be useful in knowing why your sake tastes the way it does, or what to expect based on the info on the label.

But superseding this all is the warm-n-fuzzy elusive nature of sake. As soon as we think we got it figured out, it hoses our hubris. And therein lies the fun.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fond of doing things at the last minute? Then check out the Sake Professional Course to be held in Toronto October 3, 4 and 5. Learn more here.

What is it that makes a sake taste and smell the way it does? What goes into and drives the myriad flavors and aromas we enjoy in today’s sake? We could get really technical. We good go chemical if want to, but it would not likely be pretty.

But what if we take a step or two back, and from a simple ingredients-to-results point of view ask “why’s it taste and smell like that? What makes it sweet or dry or rich or thin or fruity are ricey or sharp or round?”

Again: we could get technical. But in truth, a caveat-augmented simple explanation is more than enough. In other words, we can present the most general reasoning, the one that represents 70 percent of the truth, and then acknowledge that the remaining 30 percent exists as exceptions.

So let us look at what affects the way a sake tastes, smells and otherwise presents itself to us. The sources of those elements will be one of three things: ingredients, brewing methods, and after-care, or post-brewing handling methods. While there are countless ways of assessing the nature of sake, let’s narrow it down to those three.

And breaking it down further, let the ingredients be narrowed down to rice, water, koji and yeast. (Actually, since those are the extent of sake’s ingredients, that ain’t really narrowing it down, but you know…) And let us consider the following steps as the brewing methods that affect the nature of the sake: milling, yeast starter methods, pressing methods, pasteurization, whether or not alcohol has been added (i.e. whether or not it is a junmai style) and aging.

And finally, (But wait, there’s more!) we have region and final specs like the nihonshu-do (or SMV) and acidity. While these are more results than causes, we can extract info from them.

Since this is far too much for one enjoyable reading session, let us approach this over a couple of newsletters, and let us start this time with the basic ingredients of sake: rice, water, koji and yeast. And breaking it down to its most welcoming presentation, it might look like this.

I. Rice = Flavor
In short, rice affects flavor. But rice affects more than just flavor – umami and mouth feel for example. And other things affect flavor other than rice. But more than anything else, the choice of rice affects flavor.

There are about 400 types of short grain “Japonica” rice grown in Japan, and about 100 of the are sake rice types. While not all are distinctive in the flavors they provide, many are. Bear in mind that the rice-to-final-sake connection is not nearly as tight as the grape-to-final-wine connection. Much more affects the sake along its evolution in the kura. But the connection is still an important one.

Some rice will give sake balance and fullness, others will indeed affect specific flavors like sweetness or characters like acidity. Some lead to broader mouthfeels while others are much more narrow in their unfolding. And some lead to no discernible qualities other than lightness.

II. Yeast = Aroma
In short, yeast affects aromas. But yeast affects more than just aromas – acidity and alcohol for example. And other things affect aromas other than yeast. But more than anything else, the choice of yeast affects aromas.

Do you smell melon? It’s due to the yeast. Banana? That would be yet another yeast. Apple and licorice? That is from yet another family of yeast strains. Is it entirely this simple? Oh, God no. But basically, aromas are a result of the choice of yeast.

III. Koji = sweetness/dryness and umami.
In short, the way the koji is made will affect how sweet or dry the sake will be. Also, since the higher the ratio of koji to plain steamed rice, the more the amino acids, the more umami the sake will have.

But koji affects more than just sweetness and umami. And other things affect sweetness and umai. But more than anything else, koji affects sweetness/dryness and umami.

Koji provides enzymes that convert starch to sugar. Just how strong those enzymes are, and at what stage of the brewing process they are most active, will determine how sweet or dry the sake is. If the koji leads to lots of starch-to-sugar conversion early on, that sugar will be readily converted to alcohol leading to a dry sake. If sugar comes along later in the process when the yeast is petering out, it will remain in the sake and lead to sweetness. In truth, this too is more complicated. But therein lies the gist.

Also, the more koji that goes into the batch, the richer and fuller the sake will be, expressed in terms of umami, that sixth taste, the concept of which is becoming much more familiar to the world at large.

Of course, koji leads to other aspects of the sake, and if not created properly can lead to faults as well. But basically, sweet-or-dry and umami are tied to koji.

IV. Water = mouth feel.
In short, the water – and in particular the mineral content of the water – affects mouth feel. But water affects more than just mouth feel – like how vigorous or lackadaisacal the fermentation proceeds. And other things affect mouth feel besides the source of water. But more than anything else, water affects mouth feel.

Soft water yields a softer, more absorbing mouth feel, and is actually more suited to ginjo production as well. Harder water often leads to a fuller mouth feel with a quicker finish.

Men at Work at Rihaku Brewery

As alluded to above, there is much more that affects how the sake ends up. Just how the ingredients are coaxed and guided during the brewing process is the next phase of all this. We will look at that next month, but for now, remember that rice leads to flavor, yeast yields aromas, koji leads to sweetness or dryness, as well as umami, and water leads to mouth feel. Basically. Sort of.

It all rests comfortably in the vagueness of all that sake is. Fortunately, we need deal with none of this to enjoy it.

How many producers, how much sake?

As interest in sake grows around the world, naturally enough more and more people express curiosity about the sake industry at its source and origin: Japan.

There are many angles from which the industry can be viewed and analyzed. Certainly sales growth and production numbers are one such metric. And as important as they are, those numbers are in constant flux these days. Sales of premium sake grows but overall production still drops as the older generation that was the main market for inexpensive sake gradually passes on. Certainly the growth of premium sake is a more appealing number, and surely it is a better indicator of what to expect in the future.

Another metric, one that is more tied to the traditional infrastructure of sake brewing, is the number of brewers active in the industry. And even these numbers can be confusing and open to interpretation.

For example, one survey on sake exports mentioned that of 1613 companies surveyed, 1526 responded. However, there certainly are not 1613 active sake brewers. It makes more sense when we realize that some companies that just bottle product also need licenses. Furthermore, there are a good-sized handful of kura that are no longer brewing, but refuse to throw in the towel, and so are “taking a break” from sake-producing activities. And, there are some companies – I would estimate ten percent – that have more than one facility, each calling for a separate license. So bundle all those together and perhaps we will get to 1613 or so.

Another survey by the National Tax Administration determined that during the brewing season that ended in July of 2015, there were 1225 sake-brewing facilities, down 11 from the previous year. However: there are breweries in existence that do not actually brew themselves, for any one of a myriad of reasons. They instead outsource it from factories that are under-capacity, and bottle it and sell it as their own. Some do this with only part of their lineup, others do it for all the sake they sell.

Practices like this are good for small companies with a local market but that might not have the manpower or capital to actually produce it anymore. It can also be helpful to the outsourcing company as well. So while not everyone would enthusiastically support this sector, it fills a need.

When I arrived in Japan in 1988, there were 2055 kura selling sake. Now there are 1225. So we are down 830 sakagura in 28 years.

Based on estimates from traveling the country, working in the industry, and actually counting breweries all around the country (I have a lot of time on my hands…), all observations indicate that there are probably close to 1000 sake companies actually making sake. And that may be a high-end estimate.

So, how many sake breweries are there in Japan? About 1600 with licenses, about 1200 selling product, and about 1000 actually brewing the stuff.

Amongst those thousand, how much sake is being made? About 550 thousand kiloliters a year (of recent). Let that number sink in: over half a million kiloliters. Of that, 13 percent is ginjo (including its four subclasses), and 12 percent is junmai-shu. Interestingly, just a scant 20 years ago, both ginjo and junmai were but four percent of production each.

How much rice did the industry use last year? About 250 thousand tons of genmai (unmilled rice), or 164 thousand tons of milled rice. Let that number sink in too. The average seimai-buai (milling rate) was 65 percent.

Of the 1225 kura out there, 41 are considered large, i.e. 1300kl or more. All 41 of these companies export sake. Of the small companies, the tiny craft brewers sector, 93 percent export sake. But still, 70 percent of all sake exports come from the big 41 kura. Indeed, the polarization of the sake industry is very interesting.

In spite of all this, only three percent of all sake brewed is exported. Only. Three. Compare that with the twenty to thirty percent of French and Italian wines that are exported from those respective countires. Or, compare that with scotch whiskey, for which 90 percent of all production is exported. Wow. Either we have a lot of catching up to do (the sake glass is half empty!) or the sake future is so bright, we gotta wear shades when we drink it (the sake glass is half full!).

Either way you look at it, start by filling the sake glass up back to the brim, and enjoy it. If everyone does that, the sake future is indeed a bright one.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The next Sake Professional Course will be held in Las Vegas Nevada, August 8~10, 2016.

No sake stone remains left unturned! Learn more here . Interested? Please send an email to sakeguy@gol.com today.

Yeast is a crucial ingredients in sake.

The three main ingredients of sake are usually given as water, rice and koji, which is steamed rice with a mold grown upon it that converts starch to sugar. But although not usually listed as an ingredient, yeast is crucial in that it converts that sugar into alcohol, carbon dioxide, and many other things that make a sake taste and smell the way it does.

Yeast does and will occur naturally in the environment, but is – with only a couple of exceptions – manually added. More than anything else the choice of yeast determines the aromas of the final sake, although as we have come to expect with sake, it ain’t quite that simple.

There are hundreds if not thousands of yeasts used in sake brewing today.

Tons of ‘em. Oodles and oodles of ‘em. I am fond of saying that “everybody and his brother has a proprietary or special yeast.” Many (if not most) of them are recently developed and are to some degree experimental; if the resulting sake is a hit, great. If not, the brewer may move on to other yeast choices. As such, many are not long for this world. Indeed, few will last the test of time.

Not that it has always been this way. The surge in proprietary and specially developed yeast strains is about 25 years old now, I reckon. Before that the industry focused more on a handful of tried and true yeast strains that have been around for about a century. And before that, everyone depended on their own in-house ambient yeast, which alone could make or break a kura’s reputation.

Where do they come from? With so many out there, obviously there must be multiple sources. But it is probably safe to say that most sake in Japan is made using a yeast obtained from the Nippon Jozo Kyokai, known officially in English as the Brewing Society of Japan.

The “BSJ” has been around since 1906, originally as a group of researchers that had recently graduated from a governmental sake production course.

Their main functions are R&D, and of course stocking and distributing microorganisms, mainly sake yeast. The yeast strains themselves were for the most part discovered in sake breweries around Japan, and most have been around for decades and decades.

They are meticulously reproduced and kept pure year after year, providing stable and dependable fermentation to sake breweries all over Japan. While yeasts can have all kinds of names, those from the BSJ are recognizable by their very simple nomenclature, such as #6, #7, and #9 – which belie their significance in the industry.

While numbers one to five do exist, they are no longer distributed due to what is considered to be excessive acidity. In fact, amongst the handful of yeast strains that are actively supplied, the main ones to remember are numbers 6, 7, 9, 14 and 18-01. They were named in order of discovery, and the higher the number, the more ostentatious the aromatics. (Sorta. It’s not quite that simple, but for sound-byte purposes, that’ll do in a pinch.)

In terms of how these are reproduced, it varies a bit from yeast to yeast. But basically, stock yeast cells are put into an environment that encourages reproduction. Kind of like a love hotel for yeast, I guess. The resulting yeast cells are harvested, and washed with sterilized water, analyzed for purity and quality, and then bottled in little glass ampules.

Yeast cells mutate very quickly, and so the cells must be checked to be sure

the compounds they produce and the other characteristics are true to the original. Otherwise the acids, esters and alcohols could change, and brewers would end up with sake that is totally different from what was sought.

Once these ampules arrive at the kura, brewers will then use them by pouring the pure yeast directly into a yeast starter, or alternatively, giving the yeast cells a kick-start via a nutrient solution of koji and water. There are also other ways, of course.

However, as alluded to above, the BSJ is not the only source of yeast. Far from it! Many prefectures have their own research organizations that develop yeast strains for use by local breweries, and many breweries have their own proprietary strains as well. “Developing” yeasts really means isolating them from amongst countless strains naturally occurring in the air. (No genetic modification is done at all.)

But for almost all of these modern yeast types, rather than being a yeast that rose naturally to the top both literally and figuratively, they were the result of an active search for particular qualities like fruity aromas. Certainly there is nothing wrong with this; it is still a natural process. But many of these more modern yeast type are comparatively ostentatious in their aromatic profiles, with apple and licorice and tropical fruit more apparent than the banana and melon of olde.

Furthermore, many of these new whippersnappers amongst the ranks of yeast do not tolerate time well, in other words, the sake made using them changes comparatively quickly in the bottle, sometimes leading to bitterness in the background of the sake.

This is not to discredit or criticize their use, nor the sake to which they lead. Much of it is wonderful and popular, to be sure. The only point here is to highlight some of the differences.

However: it does seem to be that the modern yeasts, for all their lively aromatics, are very slowly falling out of favor. Perhaps a more correct way to say that is that there seems to be a slow but evident return to the more classic yeast types, in particular #6, #7 and #9, with a dollop of #14 in the daiginjo department.

Is this clearly measurable? Nah; not yet. It is still a fledgling trend. And it may not gather critical mass, and the tendency to use modern yeasts may continue. As such, not much is clear on the yeastern front at all. Vibrant ginjo aromas are still popular, even if less pretentious sake does seem to be making a comeback.

It is important to emphasize again that there is no one superior yeast or group of yeasts. As long as the sake is enjoyable by a significant number of people, anything goes. “It’s all good,” as they say. But the slight trend toward the classics, both in terms of aromas, choice of yeast, and brewing methods such as kimoto that tie in well with more less brazen yeasts, is interesting to observe.

More and more producers are providing yeast information for the sake available both in Japan and overseas. Be sure to take note of this information – and your own observations – as you enjoy sake from here on out. It can only enhance your sake experiences.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Interested in Sake? Pick up a copy of my latest book, Sake Confidential, A Beyond-the-Basics Guide to Understanding, Tasting, Selection, and Enjoyment.

Learn more here.

One of the biggest factors contributing to the quality of the sake from a given kura is the skill of the toji, or master brewer, in residence therein. And while technical texts and other means of advice and support are much more available to brewers today then, say a century ago, the experience, intuition, and decisiveness of the person in charge is still of paramount importance.

It is probably fair to say, though, that the industry is less dependent on the various guilds of master brewers than they were back in the old days. And in fact, I myself have been seeing less (not zero, mind you, but less) significance in the differences between the various guilds themselves, beyond their formidable cultural and historical presence.

Sure, we hear about slight differences, like the Nanbu guild does it this way, but the Echigo guild does the same step another way. But in the end, the overall level of technical prowess is higher than it used to be, toji or no toji, guild or no guild. And so many other factors guide the decisions of any given toji – such as house style or modern consumer needs – that those little differences between the guilds get squashed in comparison.

Nevertheless, I am pretty sure there is a lot about sake brewing about which I have no clue, and recently learned a bit about some of the real technical differences in the way different guilds of toji brew, and teach their protégé.

The toji guilds are centered around old farming regions, and most of the toji of a particular guild would stay close to home. But as the number of guilds and therefore toji has declined drastically (many are gone for good, or have but a couple of members), those that have maintained their numbers begin to necessarily spread out a bit, practicing their craft in kura farther and farther from their main region. Also, as there are textbooks, computers and seminars these days, the differences between the gilds is less clear cut than it used to be, in terms of technology, methods, and logistics.

And so I found myself in Ishikawa Prefecture, on the Noto Peninsula, home to the Noto Toji Guild. It is a narrow strip of land so sparsely populated, mostly with tobacco farmers, that in some higher spots one can see water on both sides, a testament to how few buildings there are.

One brewer I was visiting, a tiny operation, had as their toji the son of the owner, destined to take over himself in due time. But oddly enough, due to some affiliation from university, he was affiliated with a totally different guild, the mighty Nanbu Guild, basically centered in Iwate way up north.

So here sat this Nanbu toji in the middle of the home town of Noto toji. While it may not seem like much in writing, I was surprised and impressed. In any event, this particular gent had the chance to speak with many a Noto Toji as he was surrounded by them, and that juxtaposition made for great conversation as we strolled around his kura.

I found one particular technical difference big enough to surprise me and encourage further discussion.

When brewing a tank of sake, after the yeast starter is prepared, it is mixed with more rice, enzyme-rich moldy rice called koji, and water, added in three separate doses over four days. After that, the resulting fermenting mash – called the moromi – is allowed to ferment away for from 20 to 35 days or so. As it goes about its fermenting business, the temperature in that tank will rise. The highest temperature it reaches can be anywhere from 10C to 18C, depending on the grade of sake and ten million other things.

It was explained to me by this Nanbu Toji surrounded by Noto Toji that the Nanbu guild liked to let that temperature run up freely and of its own accord. “It gives us the fine-grained, clear flavor we are famous for,” he explained. But the Noto guild prefers to hold that back, forcing the moromi to take as much time as is feasible to come up to that higher temperature. The words used to me were, “Osaete, osaete,” or “They hold it back, as if saying ‘Easy now, killer, easy now.’” As he explained to me, he held his arms out, palms facing me and pushing forward, as if holding back an invisible force. And again, there is a reason. “It gives them the full flavor and quick finish that is their trademark,” I was told.

The differences are quite significant. We’re not talking a day or two here, but more to the tune of a seven days. In other words, one school says the highest temperature can be hit in a week, another says hold it back and make it take 14 days or so. To me, having that much variance in the basic brewing methodology is surprising.

But they’re right. If left on their own to brew sake as they like (i.e. without owner or consumer “suggestions” or “guidance”), Nanbu toji-brewed sake is indeed clear and fine-grained. And without a doubt, Noto toji-made juice is quite full – until the end, when it cleans out astonishingly quickly.

Well, I initially chalked this up to his particular perception. But the next day I had the good fortune to visit another brewery, this one firmly ensconced in the region’s Noto toji hands. And as the evening’s discussion with that toji wore on, we returned to this point.

I began to describe to him what I had been told. “I have heard that the Nanbu toji let the temperature of the moromi run up freely, whereas you Noto guys tend to?” He cut me off at that point.

With his arms out, palms pushing toward me as if holding back an invisible force, he interjected “Osaete, osaete?” And added a bit more verbiage to the tune of “Easy now, killer, easy now. Gotta hold that puppy back a bit.” Not only did he know where I was going, the very words were the same. The gestures were too, for that matter. This kind of indicated to me just how deeply ingrained their thinking is on the issue. “It’s what gives our sake the full flavor yet clean finish Noto Toji are known for.”

I was impressed by not only the differences, but also by the acute awareness of those differences on the part of the journeymen themselves.

I reiterate, though, that these differences are likely less significant than they once were. Textbooks, computer-generated curves and the equipment to allow brewers to match them, and modern understanding of the processes have usurped much of the effect of those older, empirically driven methods. But still, the differences in the practices of the various toji guilds are alive, well, and infinitely interesting.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Interested in Sake? Pick up a copy of my latest book, Sake Confidential, A Beyond-the-Basics Guide to Understanding, Tasting, Selection, and Enjoyment.

Learn more here.

There are many things that determine how good a batch of sake will be. And there are equally as many opinions about each and every one of those things. Factors that some brewers consider indispensable or key, others will downplay or even outright contradict – if not diss – with opposite philosophies. Depending on your threshold for vagueness, it can either be frustrating or fascinating.

One of these factors is the size of the batch, or the “shikomi,” measured in kilos of rice that went into a given tank to create that batch of sake.

Perhaps typical is a ton to a ton-and-a-half (a metric ton, mind you, so 1000 kg or 2200 pounds) of the combination of the rice and koji (the rice that has had koji mold propagated upon it). But there are those of the opinion that much smaller shikomi, say 600 kg or so, are infinitely better for super premium sake.

Perhaps the smallest size I have seen is 500kg on a practical level, although smaller sizes exist as well. But done at this scale, yields are quite low. And brewers need to ask themselves, from an economical point of view, is it worth it in the end? When considering the time required to do each of the many steps, then have it take up tank space, press it and filter it when fermentation is complete, bottle it and care for it and more – it would be so much more economical to double, triple or quadruple your yields for true efficiency. And many, many breweries function at those larger economies of scale.

Naturally, though, at some point, the law of diminishing returns kicks in with a vicious vengeance and quality begins to noticeably suffer. But just where that occurs, and how each toji (master brewer) feels about it, varies hugely.

For example, some do not think that smaller is always better, citing the truth that it is much harder to control parameters such as temperature in those smaller tanks over the long run. To achieve a given flavor and aromatic profile, brewers guide the moromi (fermenting mash) along a very tight temperature curve. Smaller batches are more subject to various factors that might send them out of spec, so to speak.

Conversely, a largish tank would lumber along so much more heavily that wild swings in temperature would not likely happen. But of course the counterpunch to this is that if your temperature and other parameters stray from the fold of the ideal, it is easy to bring them back into alignment with small batches, back to where you want them to be, whereas in big batches the sheer mass makes it harder to forcibly change the temperature once it has strayed.

But again: there are various philosophies. One hugely famous toji of almost unmatched accomplishment insists that larger batches of about 1.5 tons are ideal. He also insists on slightly customizing his tank dimensions, because by doing so the moromi mixes itself and he does not have to mess with using long poles to mix it up. It all occurs naturally in his kura as, inside the tanks, carbon dioxide bubbles stick to dissolving rice particles and the countless yeast cells, rising to the top, where the gas is released and the now-dense glob sinks again. And if your shikomi size is right, it all circulates perfectly, around and around and around…

One fact worth mentioning, however, is that almost always the more premium grades of sake are indeed made in comparatively smaller batches, at least compared to the shikomi size of the lower grades of sake for that brewer. And contest sake, too, is almost without exception made in smaller batches. But this surely arises from the aforementioned ability to tightly control key parameters.

Lately I have come across this information on the back labels of some sake bottles: they actually tell us the size of the shikomi.

Now what in the world are we supposed to do with this information? In the end, the flavors and aromas of a sake before us are either appealing, or they are not. Biasing our minds with such information before tasting will but encumber our enjoyment by unnecessarily prejudicing it.

But as always, there are a myriad of opinions. One big gun of a distributor in the Tokyo/Yokohama metropolis insists that a sake has to be made in a batch that is 600 kg or smaller to be decent. He cites his ten-year convincing effort focused on one famous kura to lower their shikomi size from a ton to 600 kg, and when they did, they won a major international award. True, the smaller shikomi size might have had something to do with it, but so might a gazillion other things. But hey, what do I know.

So enjoy your sake for its flavors and aromas. And should you come across the shikomi size, now you know its significance, and its potential liabilities.