cool down, get cold
このお料理も冷めちゃうわ
This dish will get cold too.
— 魔女の宅急便 (1989)
(亜紀)おばあちゃんうどん冷めちゃうよ
Grandma, your udon is getting cold.
— 万引き家族 (2018)
料理が冷めちゃうよ。
The food’s going to get cold.
冷めちゃう
It'll get cold.