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SPIRITS OF JAPANLand · Water · Time
ENJA
Close-up of rice grains covered with koji mold (Aspergillus oryzae)

INGREDIENT — 麹

The mould beneath Japanese fermentation.

Photo: Forrest O. / CC BY-SA 2.0

OVERVIEW

Steamed grain on which koji mould has grown, producing the enzymes that turn starch into sugar. Sake mainly uses yellow koji; shochu uses white, black or yellow; awamori uses black koji.

SOURCES

  1. 1日本の酒・本格焼酎と泡盛日本酒造組合中央会 Japan Sake and Shochu Makers Association · Industry body · accessed 2026-09-26
  2. 2泡盛ってどんなお酒沖縄県酒造組合 Okinawa Prefecture Distillers Association · Industry body · accessed 2026-09-26
  1. 1Rice koji — Forrest O. · CC BY-SA 2.0 · Wikimedia Commons