Furthermore, from that time, sake breweries were placed under the strict control of the National Tax Agency, and the tax on sake brewing had a system that more water added in the finished sake, the cheaper the tax became.
さらに当時より酒造所は国税庁の厳しい管轄下にあり、造石税は出来上がった酒に加水すればするほど税金が安くなる仕組みであった。