In 1252, the bakufu (Japanese feudal government headed by a shogun) promulgated Koshu no kin (a strict ban on the sale and purchase of sake) which had jars for brewing and destroyed stock, leaving only one jar in each sake brewery.
建長4年（1252年）に幕府の出した沽酒の禁（こしゅのきん）は徹底しており、一軒につき一個のみを残して醸造・保管用の甕を破壊させた。