The rice-milling machines for food rice are greatly different in structure from those for rice for sake brewing and the efficiency of the latter has dramatically improved since the appearance of the vertical-type rice-milling machine early in the Showa period.
食用米の精米機と、酒造米の精米機は、構造的に大きく異なる部分があり、後者は昭和初期に縦型精米機が出現して以降、飛躍的に効率が高まった。