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勾芡用凉水还是热水

更新时间: 2020-09-27 00:00:00     

勾芡:借助淀粉在遇热糊化的情况下,具有吸水、粘附及光滑润洁的特点。在菜肴接近成熟时,将调好的粉汁淋入锅内,使卤汁稠浓,增加卤汁对原料的附着力,从而使菜肴汤汁的粉性和浓度增加,改善菜肴的色泽和味道。淀粉是由多个葡萄糖分子缩合而成的多糖聚合物。烹调用的淀粉,主要有绿豆淀粉,马铃薯淀粉,麦类淀粉,菱、藕淀粉等。淀粉不溶于水,在和水加热至60摄氏度时,则糊化成胶体溶液。勾芡就是利用淀粉这种特性。

关键词: 勾芡 凉水 还是 热水

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