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金属烹调qi皿为什么不能用于微波炉

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金属烹调qi皿为什么不能用于微波炉?

微波是一zhong频率很高、ju有一定穿透能力的电磁波。微波炉中微波的正负极xing变化极快,每秒达24。5亿次。当被加热食品放在微波场中时,食品中的分子随微波正负极xing周期以每秒几十亿次的惊人速度来回摆动、彼此碰撞与moca,从而产生高热,来达到食品在几分钟内迅速加热的目的。微波炉中使用的qi皿的材料应是能为微波所穿透的材料,如玻璃、陶瓷、塑料等制成的非金属烹调qi皿。用金属烹调qi皿盛放食wu,不能放入微波炉进行烹调,因为微波难以穿透金属,传播中的微波遇钢铁等金属就会如光束投入镜面一样被反she1,金属qi皿内的食wu就不能被加热。另一方面,微波在炉膛内反she1,形成微波能量的高频短路,会使发she1微波的磁控guanyang极产生高温,烧到发红,最后损坏。

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