Sake
Sake is a Japanese alcoholic beverage made from rice. In Japanese, the word sake (does not specifically refer to this specific beverage; instead, the word Nihonshu (literally, "Japanese alcoholic beverage") is used to distinguish it from other beverages. In English, the word sake never refers to anything other than Nihonshu. This article uses the word "sake" as it is used in English.
Sake is also commonly referred to in English as "rice wine", but the characterisation implied is not accurate. Wine is made from the single fermentation of plant juices (Other than sparkling wine, which can be a double fermantation to create the carbonation.). Sake is produced by multiple fermentation of rice, which is more similar to how beer is produced. Also, outside
History
The history of sake is not well documented and there are multiple theories on how it was developed. One theory suggests that the brewing of rice started in
Regardless, the first sake was called kuchikami no sake, (Japanese for "chewing the mouth sake" or mouth chewed sake) and was made by people chewing rice, chestnuts, millet, acorn and spitting the mixture into a tub. The enzymes from the saliva allowed the starches to saccharify (convert to sugar). This sweet mixture was combined with freshly cooked grain and allowed to naturally ferment. This early form of sake was likely low in alcohol and consumed like porridge. This method was used by Native Americans; see cauim, and pulque. Chinese millet wine, made the same way, is mentioned in inscriptions from the 14th century BC as being offered to the gods in religious rituals. Later, from approximately the 8th century BC, rice wine, with a formula almost exactly like that of the later Japanese sake, became popular in
Centuries later, chewing was rendered unnecessary by the discovery of kōji-kin Aspergillus oryzae), a mold whose enzymes convert the starch in the rice to sugar, which is also used to make amazake, miso, and soy sauce. Rice inoculated with kōji-kin is called "kome-kōji”, or malt rice. A yeast mash, or shubo, is then added to convert the sugars to ethanol. This development can greatly increase sake's alcohol content (18%–25% by vol.); as starch is converted to sugar by kōji, sugars are converted to alcohol by yeast in one instantaneous process.
Kōji-kin was discovered most likely by accident. Kōji spores and yeast floating in the air would land in a soupy rice-water mixture left outside. The resulting fermentation would create a sake porridge not unlike the kuchikami no sake but without the hassle of needing a whole village to chew the rice. This porridge was probably not the best tasting, but the intoxication was enough to keep people interested in making it. Some of this mash would be kept as a starter for the next batch.
Experimentation and techniques from
For the next 500 years the quality and techniques used in brewing sake steadily improved. The practice of using a starter mash or "moto" was adopted, for the purpose of cultivating the maximum possible amount of yeast cells before brewing . Brewers were also able to isolate kōji for the first time and, thus, were able to control with some consistency the saccharification (converting starch to sugar) of the rice.
Through observation and trial and error, a form of pasteurization was also developed. Batches of sake that began to sour due to bacteria during the summer months were poured out of their barrels into tanks and heated. However, the resulting pasteurized sake would then be returned to the bacteria infected barrels. Hence the sake would become more sour and, by the time fall came around, the sake would be unpalatable. The principles behind pasteurization (and better methods of storing sake) would not be understood until Louis Pasteur discovered them some 500 years later.
During the Meiji Restoration, laws were written that allowed anybody with the money and know-how to construct and operate their own sake breweries. Around 30,000 breweries sprang up around the country within a year. However, as the years went by, the government levied more and more taxes on the sake industry and slowly the number of breweries dwindled to 8,000.
Most of the breweries that grew and survived this period were set up by wealthy landowners. Landowners who grew rice crops would have rice left over at the end of the season and, rather than letting this stash of rice go to waste, would ship it to their breweries. The most successful of these family breweries still operate today.
During the 20th century, sake-brewing technology grew by leaps and bounds. The government opened the sake-brewing research institute in 1904 and, in 1907 the very first government-run sake tasting/competition was held. Yeast strains specifically selected for their brewing properties were isolated and enamel-coated steel tanks arrived. The government started hailing the use of enamel tanks as easy to clean, lasting forever, and being devoid of bacterial problems. (The government considered wooden barrels to be "unhygienic" because of the potential bacteria living in the wood.) Although these things are true, the government also wanted more tax money from breweries as the wood in wooden barrels sucks up a significant amount of sake (somewhere around 3%) that could have otherwise been taxed. This was the end of the wooden-barrel age of sake and the use of wooden barrels in brewing was completely eliminated.
During the Russo-Japanese War in 1904–1905, the government banned the home brewing of sake. At the time, sake made up an astonishing 30% of
When World War II erupted, the sake-brewing industry was dealt a hefty blow as the government clamped down on the use of rice for brewing. Most of the rice grown during this time was used for the war effort, and this, in conjunction with many other problems, was the end for thousands of breweries all over
Previously, it had been discovered that small amounts of alcohol could be added to sake to improve aroma and texture. But by government decree, pure alcohol and glucose were added to small quantities of rice mash, increasing the yield by as much as four times. 95% of today's sake is made using this technique, left over from the war years. There were even a few breweries that were able to produce "sake" that contained no rice at all. Naturally, the quality of sake during this time suffered greatly.
After the war, breweries slowly began to recover, and the quality of sake gradually went up. However, new players on the scene — beer, wine, and spirits — became very popular in
Today, sake has become a world beverage with a few breweries springing up in
While the rest of the world may be drinking more sake and the quality of sake has been increasing, it is not clear sailing for the sake industry. In
Brewing
Moromi, a stage in the brewing process
Sake is produced by the multiple parallel fermentation of polished rice. The process of milling removes the protein and oils from the exterior of the rice grain, leaving behind starch. A more thorough milling leads to fewer congeners and generally a more desirable product. Multiple fermentation means that there are multiple steps in the fermentation process — the starch is converted to sugar by enzyme action, and then the sugar is converted to alcohol by yeast. This is typical of beverages created from starchy sources, such as beers.
Sake brewing differs from beer brewing in two significant ways. In sake brewing, enzymes for the starch conversion come from the action of a mold called kōji, but in beer brewing the enzymes come from the malt itself. In sake brewing, the multiple processes of fermentation occur simultaneously in the same step, while in beer these processes occur in different, serial steps.
After fermentation, the product is heavily clouded with grain solids and is generally filtered, except in the case of nigori sake. Generally, the product is not aged because consumers prefer the flavor of the fresh product, which degrades quickly in the presence of light, air, and heat. A few varieties of aged sake serve a niche market, however, and can be purchased for a reasonable price if one knows who and where to inquire.
In Japanese, a sake brewery is called a kura .
Types of brewing process
Nigori, or unfiltered sake.
By varying the brewing process, many different types of sake can be created. Categorized by brewing method, there are several types of sake:
Kimoto is the traditionally orthodox method for brewing sake which has been in use for at least 300 years, though very rare today. The mash is hand beaten and made into a paste which then ferments.
Yamahai is a traditional method of brewing sake introduced in the early 1900s, where the starter or "moto" is left for a month to allow it to sour. The method was originally developed to speed production time, however, now it is used to impart a higher acidity and complex flavors.
Sokujō is the modern sake which is made by adding a small amount of lactic acid to the mash to speed the production time. Sokujō sake tends to have a cleaner flavor than Kimoto or Yamahai.
Namazake is sake that has not been pasteurized and is best served chilled, and may be made with any of the above ingredients, or brewing processes.
Genshu ,supposed to be undiluted junmai sake, around 18-20% alc. by volume. Most genshu is honjōzō-shu to make it more economical, however, the method of sake brewing is growing in popularity among premium brands as well.
Muroka , means unfiltered. This type of sake is made as traditional seishu (i.e. not nigorizake), but does not go through the charcoal filtering, so there is a small amount of cloudyness. In recent years, muroka nama genshu sake is growing in popularity as it has a large enough flavor profile so that it can stand up to full flavored western foods.
Nigorizake, is cloudy sake. The sake is passed through a very loose weave to separate it from the mash. It is of course not filtered thereafter and there is much rice sediment in the bottle. Before serving, the bottle is shaken to mix the sediment and turn the sake white or cloudy.
Doburoku is the classic home-brew style of sake and is traditionally a cloudy milky color, as the most delicious flavors are found in the white residue. Doburoku is created by adding steamed rice at the end of fermentation, starting a second fermentation and raising the alcohol level. It is also unpasteurized. Please note that although the kanji for doburoku and nigorizake are the same and both are opaque, they are in fact different styles of sake, with doburoku being the "chunkier" of the two.
By creating a starter-culture of micro-organisms, a higher-quality brew is possible. The starter-culture, called "moto" is stored at 5-10°C, allowing the lactic acid micro-organisms to become dominant in the culture. Lactic acid is important to flavor and preventing un-wanted infections. Subsequently, the rice, kōji, and water is added at three separate stages. The mixture is called moromi ,and grows the mass by three additions. By initiating a brew with a starter-culture, the subsequent batches to moromi also increase the alcohol levels.
Varieties
An American-produced bottle of ginjō-shu sake.
Various types of sake offered for sale at a Japanese grocery in the
There are two basic types of sake: futsū-shu, which are the "normal sake"; and tokutei meishōshu "special designation sake". Futsū-shu does not qualify for any levels of special designation. It is the equivalent of table wine and is over 75% of all sake produced. On the other hand, the tokutei meishōshu or "special designation sake" is distinguished by the degree to which the rice is polished and the added percentage of jōzō alcohol or absence of such additives.
There are four types of tokutei meishōshu (actually six, due to mixing and matching the junmai and ginjō varieties).
honjōzō-shu ,with a slight amount of distilled alcohol added. The distilled alcohol helps pull some extra flavors out of the mash. This term was created in the late 1960s to distinguish it (a premium, flavorful sake) from cheaply made liquors to which large amounts of alcohol were added simply to increase volume and/or give it a high alcohol content.
junmai-shu (literally "pure sake"), made from rice only. Before 2004, the Japanese government mandated that at least 40% of the rice be polished away, with no alcohol added, if the sake was to be considered junmai. Today, it can represent any sake milled to any degree, that contains no additives or distilled alcohol.
ginjō-shu ,rice weight polished to 50% or less.
daiginjō-shu ,rice weight polished to 40% or less.
The term junmai can be added in front of either ginjō or daiginjō if no alcohol is added to result in either junmai ginjō or junmai daiginjō. However, distilled alcohol often is added in small amounts to ginjō and daiginjō to heighten the aroma, not to increase volume, so a junmai daiginjō without added alcohol is not necessarily a better product than daiginjō. In fact, most brews that win the gold medals at the Hiroshima Kanpyōkai (one of the most prestigious judging events) cannot be called junmai due to the small amounts of alcohol added.
In addition, there are some other terms commonly used to describe sake:
kuroshu ake using unpolished rice (brown rice), more like the Chinese production method.
koshu ,aged sake. Most sake does not age well, but this specially made type can age for decades, turning the sake yellow and giving it a honeyed flavor.
Taruzake, sake aged in cedar barrels. The barrel aging gives this type its characteristic spiciness. Also refers to sake casks broken open for the opening of buildings, businesses, parties, etc. As the cedar barrels imparts a flavor, premium sake is rarely used for this type.
seishu, the official name for Japanese sake, but excluding nigorizake and doburoku.
tei-seihaku-shu, sake with low rice polishing ratio.
Generally and traditionally, it has been said that the lower the "seimai-buai" rice polishing ratio is (see below), the better the potential of the sake is. This is true with the majority of sake in March 2007 but, in these few years, sake has intentionally been made with high rice polishing ratios, such as 80%, to produce a characteristic flavor, mainly for the scent of the rice itself to remain.
shizuku-dori ,sake that is separated from lees without external pressure by hanging moromi bags and allowing it to drip slowly.
tobin-gakoi, sake that was pressed into separate bottles usually using the shizuku-dori method, each containing 18 liters. The resulting bottles permits the brewer to select the best sake of the batch for shipping.
shiboritate, sake that has been shipped without the traditional six-month aging/maturation period. The result is usually a more acidic, "greener" sake.
Some other terms commonly used in connection with sake:
kasu , the sake lees left after filtering, used for making tsukemono, cuisine (sakekasujiru, etc.), livestock feed, and shōchū.
nihonshu-do , = (|1/specific gravity|−1) × 1443
Specific gravity is measured on a scale weighing the same amount of water at 4°C and sake at 15°C. The sweeter the sake is, the lower the number gets. When they started to use the nihonshu-do, 0 was the break-even point between sweet sake and dry sake. Now this point is +3. Most sake varies in nihonshu-do between sweetest −30 to most dry +15
seimai-buai (精米歩合), the rice polishing ratio, meaning the leftover weight after polishing. Generally, the lower the number, the better the sake's potential. Tei-seihaku-shu (see above) does not fit this traditional formula.
Serving sake
Main article: Sake set
Sake can be served in a wide variety of cups; here is sakazuki (flat saucer-like cup), ochoko (small cylindrical cup), and masu (wooden box-like cup).
In
The most common way to serve sake in the
Sake is served in shallow cups, called choko. Usually sake is poured into the choko from ceramic flasks called tokkuri. Other, more ceremonial cups, used most commonly at weddings and other special occasions, are called sakazuki. Drinking from someone else's sake cup is considered a sign of friendship, or to honour someone of lower status. The influx of premium sakes has inspired Riedel, the Austrian wine glass company, to create a footed glass specifically for premium sakes such as ginjō and daiginjō.
One item used by some traditional sake drinkers is a masu, a box traditionally made of Japanese Cypress. In some of the more traditional Japanese restaurants, as a show of generosity, the server may put a glass inside the masu (or put the masu inside a saucer) and pour until a large amount of sake overflows and fills this secondary container.
Aside from being served straight, sake can be used as a mixer for cocktails, such as the Japanese tamagozake, saketinis, or the sake bomb.
Storage
In general, it is best to keep sake refrigerated in a cool or dark room as prolonged exposure to heat or direct light will lead to spoilage. Sake stored at room temperature is best consumed within a few months after purchase.
After opening the bottle of sake, it is best consumed within 2 or 3 hours. It is possible to store in the refrigerator, but it is recommended to finish the sake within 2 days. This is because once premium sake is opened, it begins to oxidize which affects the taste. If the sake is kept in the refrigerator for more than 3 days, it is best to use it to prepare or cook food.
Ritual uses
Sake is often consumed as part of Shinto purification rituals (compare with the use of grape wine in the Christian Eucharist). During World War II, Kamikaze pilots drank sake prior to carrying out their missions. Today barrels of sake are broken open (Kagami biraki) during Shinto festivals and ceremonies or following sports victories: this sake (called iwai-zake, literally "celebration sake") is served freely to all to spread good fortune. Sake is also served during the light meal eaten during some tea ceremonies.
In the New Year Japanese people drink a special sake called toso. Toso is a sort of iwai-zake. It is made by soaking tososan, a Chinese powder medicine, overnight in sake. Even children sip a portion. In some regions the first sipping of toso is taken in order of age from younger to older. History dates back to the ninth century. This sake was introduced under emperor Saga.
Kagami biraki is the ritual breaking open of a new sake barrel with a wooden mallet, performed at weddings, business openings, New Years, and other special events.
