pure sake; undiluted sake
Refers to sake that has not been diluted with water after brewing, resulting in a stronger, richer flavor. Often contrasted with regular sake that is cut with water before bottling.
At this brewery, they bottle the sake undiluted.
Undiluted sake has a higher alcohol content.
Compound of 生 (ki, 'pure, undiluted') + 酒 (sake, 'rice wine'). The reading き for 生 is an older native Japanese reading meaning 'pure' or 'unadulterated'.