Koji Fermentation

Also known as: koji, amazake

Koji Fermentation
Forrest O. · via Wikimedia Commons · CC BY-SA 2.0 · modified

Cultivating koji mould (Aspergillus oryzae) on steamed rice, then fermenting to an amazake -- a sweet, low-alcohol rice base inspired by sake.

Category

Fermentation

How It Works

Koji is grown on steamed rice to release enzymes that convert starch to sugar; the result is mixed with water and fermented with a cultivated yeast.

Best For

Creamy, gently sweet rice-based components

How producers use Koji Fermentation

Each bottle shows the technique through a concrete substrate and role: base, acid structure, aroma, texture, bitterness, or lift.

Koji Rice Series 1

Still White<0.5% ABV
Amazake (Koji Rice)

MURI uses Amazake (Koji Rice) in Koji Rice Series 1: koji grown on steamed rice to make a sweet amazake, then fermented with a cultivated yeast into a sake-style base.[1][2]

Service signal

Creamy, gently sweet, sake-like.

Koji Fermentation | Glossary | Beyond Wine