Since the trend of brewing methods was gradually changed from shiki-jozo (four-season brewing) to kan-zukuri (cold-season brewing), the number of the people who joined in such seasonal work at another place increased after the katte-zukuri rei (the deregulation policy to promote sake brewing) was established in 1754, and such people began to form toji groups.
製法が四季醸造が寒造りへと移行していったため、宝暦4年（1754年）の勝手造り令以降、このような出稼ぎは増えて杜氏集団が形成されていった。