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醋为什么会起白沫
更新时间: 2020-10-26 00:00:00  

醋起白沫的原因一般如下:

袋装醋在封装时会产生聚氯乙烯,溶解在醋里的聚氯乙烯在一定条件下会和空气中的杂质反应生成白色固体物。白色固体物溶解在醋里或者和醋反应生成白沫;没有正确地保存醋,醋在不正确温度下保存会导致其溶解度变化,从而影响醋由不饱和溶液变为饱和溶液,所以会析出白色粉末,由于白色粉末质量比较小,溶在醋里只形成白沫。

关键词: 为什么 白沫

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