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刚煮熟的鸡蛋能用凉水冲吗

更新时间: 2020-07-15 00:00:00     

鸡蛋煮熟后,壳上膜则被破坏,同时由于壳内和壳外的双层膜上部分布着许多的小孔,当冷空气进入蛋内后,细菌、霉菌等微生物也会随之进入蛋内,并且与蛋内的酶一起分解蛋内容物,引起鸡蛋腐败变质。另外鸡蛋中有直径为4—11毫米的气室,煮鸡蛋时,由于温度升高,气室内的气压也随着升高,这时气室内的气体就会“挤”出蛋外。当把煮熟的鸡蛋投入冷水中时,温度急骤降低,气室内压力随之下降,这也会使蛋壳外的冷水和微生物通过气孔进鸡蛋内。

关键词: 鸡蛋 凉水

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