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煮沸的牛奶为什么会溢锅
更新时间: 2020-10-04 00:00:00  

牛奶含有丰富的蛋白质和乳脂肪,黏度较高,表面张力比水大一些,当牛奶沸腾时保留了大量的空气,产生许多的泡沫,形成的泡沫不容易破,所以旺火煮牛奶则很容易溢出锅。防止溢锅的方法是当牛奶的体积膨胀时应即刻离开火源,然后再放回火上烧开,如此反复三四次即可出锅。这样不仅能保持牛奶中的营养成分,而且能有效杀灭牛奶中的病原微生物。

关键词: 煮沸 牛奶 为什么

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