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猪脚炖熟后为什么会变红

更新时间: 2020-10-04 00:00:00     

原因:

高温将猪蹄里面表层血煮熟渗出的血色,所以炖熟后会变成红色,不影响食用。制作猪脚时会使用酱油或腐乳上色,会使猪脚看起来红红的。制作猪脚时使用冰糖炒糖色,做出来猪脚就显得红红亮亮的。

关键词: 为什么

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