rice polishing ratio
Technical term used in sake brewing and rice milling. Indicates the percentage of the original brown rice grain remaining after polishing. Lower numbers mean more of the outer layers have been removed. Often expressed as a percentage, e.g., 精米歩合60% means 60% of the grain remains.
This sake uses rice polished to 50% of its original size.
The lower the rice polishing ratio, the fewer off-flavors there are, and it is considered a higher-grade sake.
Compound of 精米 (seimai, 'polished rice') and 歩合 (buai, 'rate, ratio').