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清理微波炉常令人大伤脑筋，因为要动用到许多含有刺激性物质的化学成分，结果还是没办法除去污垢。

由于食物残渣、污渍都出现在微波炉拉门的背面，许多人因此对于动手清理总是能拖就拖，结果导致肮脏部位越来越硬，更难处理。

其实不用清洁剂，只要一颗新鲜柠檬，按照几个简单步骤，就可以让微波炉变得清洁溜溜。需要准备的器材包括一个小型的可微波容器或量杯、一颗柠檬，以及清洁抹布。

{1}把半杯份量的水倒进可微波容器或量杯里，再把柠檬对切成两半，把柠檬汁挤进容器内，然后把挤完的柠檬皮也一起放入。

{2}接下来把装有柠檬的容器整个放进微波炉，设定时间为3分钟，或者可以让水煮开的时间。水在微波炉里沸腾之后，继续让容器留在微波炉里5分钟，好让柠檬的酸性可以随着水蒸气散开来，把微波炉里的原本极难刷除的食物残留逐渐软化。

{3}5分钟过后便可把容器从微波炉里取出，放在旁边。这时候，柠檬已经算是功成身退，到了自己要上场动手的时候了。

用抹布先擦拭微波炉内的转盘，可以将转盘取出，方便清理，接着一一擦拭微波炉内的其他区域，从顶部、侧边到底部，最后则把拉门擦干净。

如果遇到不易去除的顽强污垢，可以拿抹布沾一点刚刚微波过的柠檬水。用柠檬清洁过的微波炉，不但焕然一新，还会散发宜人的柠檬清香。