While sake was basically produced by the merchants throughout the Edo period in all fields of brewing methods, distribution and sales, local governments or domains, due to the above reasons, started to brew Jizake (local sake) called, in later ages for convenience, Hanzoshu (sake brewed by the domains) by preparing brewing plans, inviting at no small expenses of the domain's technical experts such as Sakashi (sake brewer) (almost the same meaning as Toji [sake brewer]) and Kojishi (a person in charge of the koji-manufacturing) from the advanced regions in sake brewing like Itami sake, Nada gogo (five districts in Nada), Nara style sake and so on and making local wealthy merchants maintain brewing facilities.
江戸時代を通じて、基本的に酒はその造り方、流通、販売に至るまで商人がプロデュースするものであったが、上記のような理由から藩という地方自治体が酒造りを立案し、伊丹酒や灘五郷や奈良流など当時の酒造先進地域より酒師（さかし-杜氏とほぼ同義）や麹師（こうじし）といった技術者を少なからぬ藩費で招聘し、土地の大商人に醸造設備などを整備させて始めた地酒のことを、後世から便宜上藩造酒（はんぞうしゅ）と呼ぶ。