According to the standards adopted before World War II, a brewery which used 1,000 koku of rice for sake brewing was said to require around 10 people for their toji group.
第二次大戦前までの基準でいうと、日本酒単位を使う規模の酒蔵で必要な杜氏集団の人員は10名を目安とされたという。