warming up sake; warmed sake
Refers to both the act of heating sake and the resulting warm sake. Commonly seen in phrases like 燗をつける (to warm sake) or 燗酒 (warm sake).
寒い日は燗をつけた日本酒が美味しい。
On cold days, warmed sake is delicious.
この居酒屋では燗酒が人気です。
At this izakaya, warm sake is popular.
燗 refers to sake that has been warmed, the opposite of 冷や (sake served cold or unheated).
hot sake
warmed sake
moderately heated sake
person in charge of warming sake
warmed sake (to around 40°C)
The kanji 燗 is composed of 火 (fire) and 間 (interval, space), suggesting the application of gentle heat. The reading かん is the on'yomi. The word has been used for centuries in the context of sake preparation.