Shochu: Japan’s Other Spirit — Why It Deserves More Respect Than It Gets
By Yoshi | Japan Unveiled
There is a bottle in my refrigerator that has been there for approximately three months.
It is a bottle of imo-jochu — sweet potato shochu — from a small distillery in Kagoshima Prefecture that a colleague brought back from a business trip. The bottle is approximately two-thirds empty. I drink from it occasionally, on evenings when I want something specific: something warming and slightly complex and specifically Japanese in a way that beer and sake, which I also drink, are not.
Shochu does not get the international attention it deserves. Outside of Japan, the international conversation about Japanese spirits is dominated by Japanese whisky — which has, as I wrote in a separate article, achieved extraordinary international recognition in the past two decades. Sake gets a certain amount of international attention, primarily in the context of Japanese restaurants. Shochu remains largely unknown outside of Japan and largely misunderstood even within it.
I want to correct this, because shochu is genuinely excellent and genuinely interesting, and the specific variety and regional character of Japanese shochu production is one of the more fascinating corners of Japanese culinary culture.
What Shochu Is
Shōchū (焼酎) is a Japanese distilled spirit — the key word being distilled, which is what distinguishes it from sake, which is brewed. The distillation of shochu produces a spirit with an alcohol content typically between 25% and 35% ABV — stronger than sake and wine, but lower than most Western spirits at standard bottling strength.
The production process: the base ingredient (the specific ingredient that defines each shochu’s style) is fermented using koji (the mold Aspergillus oryzae or Aspergillus awamori) and then distilled. The specific koji culture used — and the specific base ingredient — are the two primary factors that determine the shochu’s flavour character.
The legal definition in Japan distinguishes between koruijochu (甲類焼酎 — multiple distillation shochu) and otsurui jochu (乙類焼酎 — single distillation shochu). Multiple distillation shochu — produced through continuous still distillation — is the cleaner, more neutral spirit used in mixed drinks and canned cocktails. Single distillation shochu — produced through pot still distillation that retains more of the base ingredient’s character — is the artisanal, flavour-forward category that serious shochu drinkers and international spirits enthusiasts are interested in.
The Major Styles: A Guide by Base Ingredient
Imo-jochu (芋焼酎) — Sweet potato shochu
The most distinctive and most internationally interesting of the major shochu styles. Made from Kagoshima Prefecture’s satsumaimo (sweet potato), imo-jochu has a specific character that surprises almost everyone who encounters it expecting something mild: an earthy, slightly funky, deeply rich spirit with a specific dorokusai (earthy/muddy) aroma that is either immediately appealing or initially challenging, depending on the drinker.
The specific character comes from the combination of the sweet potato’s specific flavour compounds and the specific koji used in fermentation. The best imo-jochu — from producers including Satsuma Shuzo, Kirishima Shuzo, and the boutique distilleries of the Osumi Peninsula — has a complexity that rewards careful attention.
Regional pride: Kagoshima Prefecture is the undisputed capital of imo-jochu. The prefecture’s specific sweet potato varieties, its specific climate, and its centuries-long distillation tradition have produced a regional spirit that Kagoshima people drink with the same proprietary passion that Scots drink whisky.
Mugi-jochu (麦焼酎) — Barley shochu
The most internationally accessible of the major shochu styles — cleaner and lighter than imo-jochu, with a gentle grain character that is easy to appreciate without prior shochu experience. Oita Prefecture and Nagasaki Prefecture are the primary production areas, with the island of Iki in Nagasaki being the historically significant centre of barley shochu production.
The Iki style — produced on Iki Island with a specific ratio of barley to rice koji — is considered the classical form of barley shochu. Contemporary mugi-jochu from mainland Oita and various other prefectures tends toward a slightly lighter style.
Kome-jochu (米焼酎) — Rice shochu
Rice shochu is the most delicate of the major styles — cleaner than imo-jochu, slightly more aromatic than mugi-jochu, with the specific gentle sweetness of the rice base. Kumamoto Prefecture, particularly the Hitoyoshi-Kuma region, is the primary production area.
The Kuma shochu geographical indication — awarded to shochu produced in the Kuma River basin region of Kumamoto using specific traditional methods — is the first Japanese product to receive a geographical indication under the EU-Japan Economic Partnership Agreement, reflecting international recognition of the specific regional character of this style.
Awamori (泡盛) — Okinawa’s distilled spirit
Awamori is technically distinct from mainland shochu — it uses long-grain indica rice rather than the japonica rice of mainland Japan, a specific Okinawan black koji (kurokoji) rather than the white or yellow koji of mainland production, and a single fermentation-and-distillation process that produces a spirit with particularly distinctive character.
Awamori is the indigenous spirit of the Ryukyu Kingdom tradition that preceded Okinawa’s incorporation into Japan — it predates the development of mainland shochu by several centuries and reflects the specific trade relationships between the Ryukyu Kingdom and mainland China that shaped Okinawan culture more broadly.
The most remarkable quality of awamori: it improves with age, and the tradition of kuusu (aged awamori, stored for three or more years) produces spirits of considerable complexity. Century-old kuusu — preserved through the shitsugi system of gradual blending, similar in concept to the solera system for sherry — is among the most culturally significant and most expensive spirits produced in Japan.
How to Drink Shochu
The specific drinking conventions of shochu are worth understanding because they are genuinely different from the conventions applicable to Western spirits.
Mizuwari (水割り) — Diluted with water. The standard way of drinking shochu for everyday consumption: shochu and cold or warm water combined in approximately 6:4 ratio (six parts water, four parts shochu), sometimes with ice. The dilution reduces the alcohol content to approximately wine strength and opens up the aromatic character of the shochu in a way that undiluted drinking does not.
Oyuwari (お湯割り) — Diluted with hot water. The winter preparation: hot water added to shochu (in the order hot water first, then shochu — the reverse addition affects the mixing in specific ways) to produce a warm drink that is particularly appropriate for cold weather. The warmth amplifies the aromatic character of imo-jochu in a way that makes it one of the most comforting cold-weather drinks I know.
On the rocks. Shochu served over ice, undiluted — the format most similar to Western spirit service. Produces the most intense flavour experience.
Straight. Shochu at room temperature without dilution — appropriate for premium, well-aged shochu where the full flavour complexity is the point.
The specific Japanese convention: a glass of shochu with oyuwari on a cold evening, at a small izakaya, with yakitori — this is one of the most specifically Japanese drinking experiences available and one that has no equivalent in any other drinking culture.
— Yoshi 🥃 Central Japan, 2026
