Shochu is Japan's traditional distilled spirit, made from natural ingredients like barley, sweet potato or rice, fermented with kōji mould and then distilled. It belongs in the same family as whisky, vodka and brandy, not sake. Honkaku shōchū, the single-distilled category, is made at under 45% ABV and preserves the character of whatever it is made from. Its koji-based craft was inscribed by UNESCO in 2024.
This is our guide to shochu for chefs and curious drinkers: what it is, the styles and sub-categories, how it is made from grain or potato through to bottle, what the kōji and yeast contribute, its flavour and history, and how to drink it. The production detail draws on a first-hand visit to Yanagita Distillery in Miyazaki, one of Japan's leading shochu regions. It sits inside our Drinks Masterclass.
A Distilled Spirit, Not a Sake
Shochu (焼酎) is a traditional Japanese distilled spirit made from natural ingredients such as sweet potato, barley, rice, buckwheat or brown sugar, fermented with kōji mould and distilled. Unlike sake, which is produced by fermentation alone, shochu is both fermented and distilled, which places it alongside whisky, vodka and brandy rather than wine. Each base ingredient drives its own aromas and flavours, so a single spirit category produces a remarkably wide range of styles.
Under Japanese Liquor Tax Law there are two categories of shochu.
| Category | Japanese | Distillation | Character |
|---|---|---|---|
| Honkaku Shōchū | 本格焼酎 | Single distillation | Expressive; preserves ingredient character |
| Kōrui Shōchū | 甲類焼酎 | Continuous distillation | Neutral; industrial production |
Honkaku Shōchū is the traditional category: made only from natural ingredients, fermented with kōji, and distilled exactly once at under 45% ABV. The word honkaku means genuine or traditional, a deliberate statement of craft over commodity. Kōrui Shōchū is produced by continuous distillation and is the lighter, more neutral industrial category. Miyazaki Prefecture, in the south of Kyushu, is Japan's leading producer and consumer of Honkaku Shōchū.
Source: Yanagita Distillery technical sheet, Miyakonojo, Miyazaki Prefecture. Facts extracted and reworded.
The Styles of Shochu
Within Honkaku Shōchū, the base ingredient is the first thing that shapes a bottle: the same craft and kōji applied to different starches gives very different spirits. The common bases are sweet potato (imo / 芋), barley (mugi / 麦), rice (kome / 米), buckwheat (soba / 蕎麦) and brown sugar (kokutō / 黒糖). Beyond those, two distinctive sub-categories are worth knowing.
Goma shōchū (胡麻焼酎), sesame shochu. A honkaku style that ferments sesame seeds alongside barley and rice kōji, giving an aroma that runs from toasted nut to vanilla depending on the seed and the ageing. It was created in 1978 by Beniotome Distillery in Fukuoka, the world's first sesame shochu; standard expressions carry more than 10% sesame, premium ones more than 20%.
Kokutō shōchū (黒糖焼酎), brown sugar shochu. Made from Amami island black sugar with rice kōji, giving a mellow, aromatic spirit with notes of caramel and molasses. By Japanese designation it can only be produced in the Amami islands of Kagoshima, a geographic restriction in the spirit of single malt Scotch.
Shochu is also classified by how it is distilled and how it is bottled. Atmospheric distillation gives a richer, more robust spirit; vacuum distillation a lighter, more delicate one (see below). And most shochu is diluted to a serving strength of around 20 to 25% ABV, while genshu (原酒) is bottled undiluted, straight from the still at 38 to 43% ABV.
Source: goma and kokutō detail from the Nanzan Bussan trade catalogue (Beniotome, Nishihira Honke); base ingredients and dilution from the Yanagita technical sheet. The formal regulatory text for the Amami kokutō designation is a record GAP; the geographic restriction is as stated by the producer. Facts extracted and reworded.
How Shochu Is Made
Honkaku Shōchū is made in two fermentation stages: a kōji culture is grown on grain, built into a yeast starter, then combined with the main base ingredient to ferment into a mash, which is distilled exactly once, matured, filtered and bottled. Single distillation is the defining legal and qualitative feature of the category. The detail below reflects the process observed at Yanagita Distillery in Miyakonojo, founded in 1902 and the oldest distillery in the city; specific timings and vessels are Yanagita's own practice and may differ across the wider category.
Stage 1, kōji preparation (around 40 hours).
Steamed barley or rice is inoculated with kōji mould and cultivated in the kōji-muro (麹室), a sealed, cedar-lined room with controlled temperature and humidity. The kōji produces the enzymes that convert starch into fermentable sugars. Cultivation takes roughly 40 hours and needs constant attention.
Stage 2, shubo, the yeast starter (around 7 days).
Kōji, water and shochu yeast are combined in a tank to grow the yeast starter, or shubo (酒母), literally the "mother of shochu". Over about seven days the yeast multiplies into a vigorous population that seeds the main fermentation.
Stage 3, ingredient preparation (sweet potato expressions only).
Sweet potatoes aged for more than 40 days are washed, hand-inspected, trimmed and steamed for around 60 minutes. Correct steaming matters: too firm and fermentation is inefficient, too soft and character is lost. The steamed potato is then crushed and combined with the starter and water.
Stage 4, secondary fermentation, niji-moromi (二次もろみ).
The main fermentation. The starter, base ingredient and water ferment in large open-top tanks, around 14 days for barley and 10 days for sweet potato. The mash reaches roughly 14 to 17% alcohol, much higher than a whisky mash at around 8%, because kōji and yeast work together. Honkaku mash generally reaches 15 to 20% alcohol before distillation, a defining trait of the category.
Kaire (櫂入れ), daily stirring.
Throughout fermentation the mash is stirred twice a day with a long wooden paddle, the kaibō (櫂棒). Lifting the settled solids from the bottom equalises temperature and yeast activity across the tank. As the guide at Yanagita put it, fermentation has a kind of "biorhythm", active and quiet by turns, and stirring is an indispensable part of making good shochu.
Stage 5, distillation (3 to 4 hours).
The fermented mash is distilled once. There are two methods, and they produce different spirits.
| Method | Japanese | Technique | Character |
|---|---|---|---|
| Atmospheric | 常圧蒸留 Jōatsu Jōryū | Steam injected directly into the mash | Rich body, deep character, robust aromas |
| Vacuum / low-pressure | 減圧蒸留 Gen-atsu Jōryū | Indirect heat under reduced pressure | Lighter body, delicate aromas, smooth finish |
Freshly distilled undiluted spirit, genshu (原酒), typically runs at 38 to 43% ABV. Straight off the still it can be harsh and unbalanced, so maturation follows.
Stage 6, maturation.
Maturation runs from several months to several years. At Yanagita the main vessel is a porcelain enamel tank, which preserves the spirit's original character while letting texture and aroma soften. Premium expressions are also matured in ex-bourbon casks and Mizunara oak barrels, and traditional ceramic jars (kame / 甕) are still in use.
Stage 7, filtration.
After maturation the shochu passes once through circular filter sheets to remove insoluble compounds and fine particles. The aim is clarity and balance, not stripping out character. Some expressions are filtered only lightly, by hand, to preserve oils and flavour.
Stage 8, adjustment and bottling.
Water is added to bring the spirit down from genshu strength to the target bottling ABV, unless it is bottled as genshu. At Yanagita the labels are applied entirely by hand: starch paste made in-house is brushed onto each label and positioned by hand, one bottle at a time.
Source: Yanagita Distillery technical sheet and first-hand factory visit, Miyakonojo, Miyazaki Prefecture. Facts extracted and reworded.
What Shochu Is Made From
Honkaku Shōchū rests on three things: a base ingredient that supplies the starch, kōji mould that turns that starch into fermentable sugar, and yeast that turns the sugar into alcohol. Water then runs through every stage, from kōji cultivation to the final dilution before bottling.
Kōji (麹), the heart of shochu
Kōji is a mould culture grown on steamed grain. It produces the enzymes, chiefly amylases, that convert the starch in barley or sweet potato into fermentable sugars. Without kōji, starch-rich materials cannot ferment directly. This is the fundamental difference from whisky, where malted barley does the same job.
Three kōji types are used, and the choice steers the whole flavour of the spirit. White kōji (白麹) gives a milder, rounder, gently sweet character and is the workhorse of the category; Yanagita's main strain is Kawauchi White Kōji (川内白麹). Black kōji (黒麹), the strain long used for Okinawan awamori, produces more citric acid and a richer, earthier, more robust spirit, and Yanagita uses it for some sweet potato expressions. Yellow kōji (黄麹), the same strain used in sake, gives a fruity, floral character and is returning to favour for lighter styles. Cultivation happens in the cedar-lined kōji-muro, which holds fixed wooden troughs (kōji-bune / 麹舟) and shallow portable trays (kōji-buta / 麹蓋).
Yeast, the shubo (酒母)
The yeast starter is built before the main fermentation and determines much of the final character. At Yanagita, Kagoshima No.2 yeast is used for barley expressions and Kagoshima No.5 for sweet potato expressions.
Base ingredient
Yanagita's barley expressions use two-row barley, Haruka Nijyo (はるか二条), grown in Kyushu, which serves both as the kōji substrate and the main starch source. The sweet potato expressions use the Beni Haruka (紅はるか) variety from contracted local farmers in Miyakonojo, aged for more than 40 days after harvest so the starches convert to sugar and the sweetness deepens.
Water
Water is used at every stage and its quality shapes the balance and smoothness of the spirit. At Yanagita it is drawn from wells 100 to 150 metres deep, fed by aquifers in the Kirishima mountains and naturally filtered through rock over many years into a soft water well suited to shochu. The same groundwater cools the spirit back to liquid in the distillation condensers.
Source: kōji-type flavour tendencies from the NRIB Story of Shochu (Class D, fact-extracted); strains, yeast, base and water from the Yanagita technical sheet and factory visit. Facts extracted and reworded.
The Flavour of Shochu
Shochu's flavour comes from three levers working together: the base ingredient, the kōji type and the distillation method. As a rough map, black kōji gives a rich, earthy spirit, white kōji a milder and rounder one, and yellow kōji a fruity, floral one; atmospheric distillation amplifies body and the raw-ingredient character, while vacuum distillation keeps things light and clean. Some signature aromas have a known chemistry: aged awamori develops a vanilla note, and sweet potato shochu can show a lychee or muscat aroma that the kōji enzymes release from the potato.
To describe all this consistently, Japan's national brewing institute spent around three years building an official Flavour Wheel for honkaku shochu and awamori, with an inner ring of eight aroma and taste groups and an outer ring of thirty aroma terms and seven flavour terms, used both for quality control and to help drinkers talk about what they are tasting. For a chef, the practical point is that "shochu" is not one flavour: the same distillery, kōji and water can give you something grassy and light or something deep and chocolatey, depending only on the base and the still.
Source: NRIB Story of Shochu (the Flavour Wheel, koji-driven tendencies, the awamori vanilla and sweet-potato lychee chemistry). Class D, fact-extracted and reworded. The thirty aroma and seven flavour terms are not yet transcribed term-by-term in our record.
Geographical Indications
Like Cognac or Scotch, four shochu styles carry a protected Geographical Indication, meaning the name is tied to a place and a method.
| GI | Japanese | Region | Style |
|---|---|---|---|
| Iki | 壱岐 | Iki City, Nagasaki | Barley shochu (its birthplace) |
| Kuma | 球磨 | Kuma and Hitoyoshi, Kumamoto | Rice shochu |
| Satsuma | 薩摩 | Kagoshima (excluding Amami) | Sweet potato shochu |
| Ryukyu | 琉球 | Okinawa | Awamori |
Awamori, the Ryukyu GI, is shochu's older Okinawan cousin and the origin point of the whole category; we cover it separately.
Source: NRIB Story of Shochu. Class D, fact-extracted and reworded.
A History of Shochu
Distillation reached Japan through the Ryukyu Kingdom, modern Okinawa, which received it from the Kingdom of Siam, modern Thailand, by the Southeast Asian sea routes in the 15th century. Awamori was the starting point, so shochu's roots run back more than 400 years. The oldest surviving mention is the Portuguese trader Jorge Alvares's 1546 account of "orraqua", a rice shochu drunk at Yamagawa in what is now Ibusuki, Kagoshima; the oldest record of the word "shochu" itself is graffiti scratched onto a shrine board at Koriyama Hachiman Shrine in Isa City, Kagoshima, dated 1559.
The spirit we drink today was reshaped by a quiet revolution in kōji. Black kōji, long used for Okinawan awamori, was introduced to Kagoshima sweet potato shochu around 1910, replacing the contamination-prone yellow kōji. Its citric acid raised alcohol yields by 20 to 30% and gave a cleaner, fresher aroma, transforming mainland shochu. A white mutation of black kōji, with the same useful properties, was discovered in 1924 and quickly adopted, and it remains the category's mainstay today. In December 2024, the traditional koji-based brewing craft that underpins honkaku shochu and awamori was inscribed on the UNESCO Intangible Cultural Heritage list.
One distillery's story shows the craft up close. Yanagita Distillery was founded in 1902 and is the oldest in Miyakonojo City, with more than 120 years of history. The current president, Tadashi Yanagita, is the fifth generation of the founding family; he brings an engineering background and a focus on refining the still for each individual product, with a philosophy of making shochu that faithfully expresses its ingredients, its makers and the terroir of Miyakonojo. Yanagita's core product names even draw on traditional Japanese terms for horse coat colours, a nod to Miyazaki's history as "the land of thoroughbreds": Aokage (青鹿毛, a blue-roan coat), Akakage (赤鹿毛, bay or chestnut), Tochikurige (栃栗毛, dark chestnut) and Koma (駒, a young horse).
Source: category origins, the kōji revolution and UNESCO status from the NRIB Story of Shochu (Class D, fact-extracted); the Yanagita history from the technical sheet and factory visit. Miyazaki's specific rise as the leading prefecture is a record GAP. Facts extracted and reworded.
Popular Products
Four to start with, across rice, barley and a ready-to-drink serve, plus a coffee liqueur that shows what honkaku shochu can become as a base:
Yoshimura, 15 year aged Rice Shochu, 720ml
A rice shochu aged fifteen years in oak, the rare end of a category most people drink within a year. Soft and rice-led underneath, with vanilla and cocoa from the wood. Best neat, on the rocks, or with a little water.
Satsuma Shuzo, Kannoko Barley Shochu, Oak-Aged, 720ml
Barley shochu aged three years in oak from one of Kagoshima's oldest distillers. The closest thing Japan makes to a malt whisky, and a good bridge for whisky drinkers new to the category. Best neat or with hot water.
How to Drink Shochu
Shochu is primarily a drinking spirit, taken straight or with dilution, and the right serve depends on the style. The serving styles below map well onto how UK drinkers already enjoy whisky and gin.
On the rocks suits the fuller and cask-aged expressions and lets the spirit open up slowly. With soda (highball) is bright and easy, and excellent with ice and a twist of lemon. With hot water (oyuwari / お湯割り) is the classic winter serve, softening the spirit and lifting its aromas. Neat works for the more complex cask-matured bottlings. And the more robust, atmospheric-distilled barley expressions take well to cocktails, bringing a toasted grain or sesame note.
For a UK audience used to gin, whisky and highballs, the barley expressions and cask-aged styles are the most accessible way in. Shochu rewards a little curiosity: the same distillery, kōji and water can give you something light and grassy or something deep and chocolatey, depending only on the base and the still.
Source: serving styles from the Yanagita technical sheet and factory visit. Facts extracted and reworded.
Health Properties of Shochu
Honkaku Shōchū is described as naturally low in residual sugar and generally lower in calories than many other alcoholic drinks, a consequence of single distillation removing most sugars. This is a producer claim from a promotional technical sheet rather than independent nutritional research, so treat it as a directional point, not settled science. Shochu is an alcoholic spirit and should be enjoyed in moderation.
Frequently Asked Questions
What is the difference between shochu and sake?
Sake is brewed by fermentation alone, like a wine or beer, while shochu is fermented and then distilled, like whisky or vodka. That makes shochu a distilled spirit, usually bottled at a higher strength, whereas sake is a brewed beverage. They share the use of kōji mould in fermentation, but they belong to different drinks categories entirely.
What is Honkaku Shōchū?
Honkaku Shōchū (本格焼酎) is the genuine, traditional category of shochu under Japanese Liquor Tax Law. It is made only from natural ingredients, fermented with kōji, and distilled exactly once at under 45% ABV. The word honkaku means genuine or traditional. The alternative category, Kōrui Shōchū, is made by continuous distillation and is lighter and more neutral.
What is shochu made from?
Shochu can be made from a range of natural bases, most commonly sweet potato (imo), barley (mugi), rice (kome), buckwheat (soba) or brown sugar (kokutō). Distinctive sub-styles include sesame shochu (goma) and Amami brown sugar shochu (kokutō). Each base gives the spirit a distinct character, and kōji mould converts its starch into fermentable sugar before yeast ferments it and the mash is distilled.
How do you drink shochu?
Shochu is enjoyed straight, on the rocks, diluted with cold water (mizuwari), diluted with hot water (oyuwari), or lengthened with soda as a highball. Lighter, vacuum-distilled styles suit soda and food; fuller, cask-aged styles are good neat or on the rocks. Hot water is the traditional winter serve and lifts the spirit's aromas.
What ABV is shochu?
Honkaku Shōchū is distilled at under 45% ABV by law. Undiluted spirit straight off the still, called genshu, typically runs at 38 to 43% ABV. Most shochu is then diluted with water before bottling to a serving strength of around 20 to 25% ABV, though genshu and cask-strength expressions are bottled stronger.
Where to Buy Shochu in the UK
Our online store stocks a range of single-distilled and aged Japanese shochu expressions, with fast delivery across the UK. Shochu is a distilled spirit, so you'll find it under our spirits range rather than with the fruit sakes.
For more, browse the Drinks Masterclass, or read about sake, the brewed side of Japanese drinks, and how shochu's koji and savoury depth connect to umami.
Production and ingredient detail sourced from Yanagita Distillery (柳田酒造合名会社), Miyakonojo, Miyazaki Prefecture, established 1902, drawn from its technical sheet and a first-hand factory visit and reflecting that distillery's practice. Category history, the kōji revolution, the UNESCO status, the Geographical Indications and the Flavour Wheel are drawn from Japan's National Research Institute of Brewing "Story of Shochu", fact-extracted and reworded, not reproduced. Sesame and brown sugar sub-styles are from the Nanzan Bussan trade catalogue. Category-wide process timings are limited to what the evidence supports.
