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电水壶二次烧水能喝吗

更新时间: 2020-11-04 00:00:00     

不能。因为水烧了又烧,使水分再次蒸发,等于喝千滚水。千滚水就是在炉上沸腾了一夜或很长时间的水,还有电热水器中反复煮沸的水和多次反复使用的蒸锅水。这种水因煮得过久,水中不挥发性物质,如钙、镁等重金属成分和亚硝酸盐含量很高。注意:久饮这种水,会引起亚硝酸盐中毒。所以不能二次煮沸后再次饮用。

关键词: 水壶 烧水

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