He or she is responsible for okezan, which is the management of budget and accounts for sake brewing, and all processes of sake production such as preparation of main fermenting mash, brewing, safety management, and warehouse management.
桶算（おけざん）と呼ばれる、酒造りにかかわる様々な予算と収支の管理、日本酒醪の仕込み・醸造・安全の管理、蔵の管理などすべてを請け負う。