Since widespread illegal liquors not only damaged people's health but also led to the deterioration of social order and the decrease of tax revenue for the government, the study of legal sake which was not made of rice was strongly promoted.
闇酒の横行は国民の健康を損ねるだけでなく、治安を悪化させ、政府にとっても税収の低減につながるため、合法的でなおかつ米を原料としない酒が真剣に研究された。