The work begins with a process to put koji and cold water into a tub or a tank, which is called motooke, about one meter high and mixing them well.
作業としては、まず酛桶（もとおけ）と呼ばれる高さ1mほどの桶もしくはタンクに、麹と冷たい水を入れ、それらをよく混ぜる。