Freeze flour for 48 hours to kill any insect eggs that might be present.

将面粉冷冻48小时，杀死可能存在的虫卵。

youdao

Freeze flour for 48 hours to kill any insect eggs that might be present.

将面粉冷冻48小时，杀死可能存在的虫卵。

youdao