In addition, in "the Shibata family document: The origin of sake brewing" handed down in the Nada Ward, it is described that 'in ancient times, governmental officials called Miki no tsukasa brewed sake for rites and festivals in Dainairi (the Imperial Court), but in the Muromachi period the demand of sake became too high for them to sufficiently supply it, so relatives of the governmental officials began to brew sake in town, among which the sake produced around Sesshu was good quality,' which showed that the sake brewing industry grew rapidly in the Muromachi period.
また灘区に伝わる『柴田家文書酒造り始之由来』には、「むかし大内裏（朝廷）で造酒之寮（造酒司）と呼ばれる御官人が祭祀のために酒を造っていたが、室町時代になると酒の需要が高まり、とても追いつかなくなったので、御官人の縁者が市中でも造り始めたところ、とりわけ摂州表で造る酒は出来柄がよかった。」と書かれ、室町時代が酒造業にとって急成長の時代であったことを裏付けている。