焼酎 — Japan's most consumed distilled spirit. Koji fermentation, single distillation, extraordinary diversity of base ingredients.
Codex Definition
Shochu (焼酎) is a Japanese distilled spirit made by fermenting a base ingredient — most commonly barley (mugi), sweet potato (imo), rice (kome), buckwheat (soba) or brown sugar — with kōji mould, then distilling it, traditionally a single pass. Honkaku ("authentic") shochu is single-distilled and capped at 45% ABV, prized for retaining the character of its base ingredient; kōrui shochu is multiply/continuously distilled to a neutral 36% ABV maximum. It is regulated under Japan's Liquor Tax Law and is the country's most-consumed distilled spirit.
Shochu is Japan's most consumed distilled spirit by volume — outselling whisky, gin, vodka, and all imported spirits domestically by a wide margin. Yet outside Japan, it remains almost entirely unknown. This is a spirit with a 500-year documented history, a rigorous legal framework, multiple protected geographical indications, and a production process built on one of the most sophisticated fermentation cultures in the world.
It is not sake — sake is brewed (fermented), not distilled. It is not soju — though the two share distant historical roots, they are produced under entirely separate regulatory frameworks, from different ingredients, to different standards. Shochu is its own thing, and understanding it requires starting from scratch.
The legal framework divides shochu into two categories: Honkaku shochu (本格焼酎 — "authentic shochu") produced by single distillation with full character preservation, and Korui shochu (甲類焼酎 — "Class A shochu") produced by continuous multiple distillation to near-neutral spirit. This Codex covers both, with dedicated deep treatment of Honkaku and Awamori.
Single-distilled shochu retaining the full character of its base ingredient. Barley, sweet potato, rice, buckwheat, brown sugar — each produces a distinctly different spirit. The premium category. Multiple GIs.
Full entry →Okinawa's ancient rice spirit — predates mainland Japanese shochu by centuries. Long ageing tradition. Black koji mould (Aspergillus luchuensis). Kusu (aged Awamori) is among Japan's most complex spirits.
Full entry →Multiple-distilled, near-neutral spirit. The backbone of chuhai (mixed drinks) and highball culture. Clean, light, and highly mixable. High-volume category.
See Honkaku entry for comparison →| Category | Japanese | Distillation | Max ABV (undiluted) | Bottling ABV | Permitted bases |
|---|---|---|---|---|---|
| Honkaku (Otsu-rui / Class B) | 本格焼酎 / 乙類 | Single pot still (単式蒸留) | 45% | 25–45% (typically 25%) | Grain, potato, sugar cane, and other specified ingredients |
| Korui (Ko-rui / Class A) | 甲類 | Continuous column still (連続式蒸留) | 36% (bottling max) | 20–36% | Any fermentable material — typically molasses |
| Awamori | 泡盛 | Single pot still | 45% | 25–45% | Long-grain indica rice (Thai rice) only; black koji only |
| GI Name | Japanese | Region | Base ingredient | Protection |
|---|---|---|---|---|
| Iki Shochu | 壱岐焼酎 | Iki Island, Nagasaki | Barley (1/3) + rice koji (2/3) | WTO TRIPS Annex + NTA GI designation |
| Kuma Shochu | 球磨焼酎 | Kuma district, Kumamoto | Rice only | WTO TRIPS Annex + NTA |
| Satsuma Shochu | 薩摩焼酎 | Kagoshima Prefecture | Sweet potato (imo) only | NTA GI designation |
| Ryukyu Awamori | 琉球泡盛 | Okinawa Prefecture only | Long-grain indica rice + black koji | NTA GI designation |
| Kozuru | 球磨焼酎 sub-type | Kuma district | Rice | Within Kuma GI framework |
| Dimension | Honkaku Shochu | Sake | Korean Soju |
|---|---|---|---|
| Production method | Fermented + distilled | Fermented (brewed) — not distilled | Fermented + distilled (or diluted neutral spirit) |
| ABV | 25–45% | 14–17% | 16–25% (modern); up to 45% (traditional) |
| Base | Barley, imo, rice, buckwheat, brown sugar | Rice only | Ethanol from tapioca/rice/wheat (modern); grain (traditional) |
| Koji mould | Aspergillus kawachii (white), A. luchuensis (black), A. oryzae (yellow) | Aspergillus oryzae (yellow) only | Not always used; some use amylase enzymes |
| Legal framework | Japan Liquor Tax Act (酒税法) | Japan Liquor Tax Act | Korean Liquor Tax Act (주세법) |
| Primary market | Japan (domestic) | Japan + global | Korea + global |