燗かんをつける

expression, ichidan verb

warm up sake

Specifically refers to heating sake to a warm temperature, typically around 40–50°C. The kanji 燗 is used exclusively for warming alcohol.

• 寒さむい夜よるには燗かんをつけた日本にほん酒しゅが美味おいしい。

  On a cold night, warmed sake is delicious.

• お客きゃくさんに燗かんをつけて出だしてください。

  Please warm up the sake and serve it to the guests.