noun
barley kōji
Kōji mold (Aspergillus oryzae) grown on steamed barley, used as a starter for fermented foods such as miso and shōchū.
See also: 麹
麦麹を使って麦味噌を仕込む。
I make barley miso using barley kōji.
この焼酎は麦麹で仕込まれている。
This shōchū is brewed with barley kōji.