I know that microwave should kill all living matter. When it comes to plastic or paper or metals, setting at high-power can cause burns and damages to such materials, but at 270W and 330 W (I think also 440W) no damage is created. Do you know if at these ratings for long period (say 10mins) is an effective way of killing bacteria and fungi spores. Sometimes I re-use petridishes coz they are expensive.
Dry sterilisation in microwave
- Steve_mt
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Hi Steve
AFAIK dry things won't get hot in a microwave. I would recommend to sterilize such things in a pressure cooker.
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But spores, bacteria and living matter that have water inside so the microwave radiation "should" destroy them, at least theoretically. The question is if the rating of 440W is enough, because higher ratings damage plastic, wood/paper, rubber and arcs with metals etc.
Microwave sterilization - PubMed
Effect of microwave radiation on Bacillus subtilis spores - PubMed
Yet these claims do not mention the power rating
So I wonder if someone had personal experience.