Electromagnetic radiation is behind this concern, as well. But there’s no data or study to support worries about microwaves’ EMFs, James says. Which means, yes — go ahead and warm up last night’s leftover soup, and spare yourself the work of cleaning another dirty pot. Since some plastics may break down when exposed to heat and release chemicals that could be harmful to your growing baby, use glass or microwave-safe porcelain containers instead of plastic when you can.
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