There are also glass tupperwares and microwave safe metal tupperwares.
The red/orange residue is also left on those, mainly due to the lycopene not dissolving in water. But I’m with you in the no heating or cooking in plastic.
If i recall, the main trick is to make sure there aren’t any sharp corners or other places that are close enough together that arcing can occur. But there might be some additional stuff, like coatings and other design choices that are necessary to promote even and effective heating (otherwise the microwave will heat the bowl instead of the food since the radiation won’t pass through metal like it does with plastic, paper, or glass).
There are also glass tupperwares and microwave safe metal tupperwares.
The red/orange residue is also left on those, mainly due to the lycopene not dissolving in water. But I’m with you in the no heating or cooking in plastic.
TIL: microwave safe metal containers… 🤯
If i recall, the main trick is to make sure there aren’t any sharp corners or other places that are close enough together that arcing can occur. But there might be some additional stuff, like coatings and other design choices that are necessary to promote even and effective heating (otherwise the microwave will heat the bowl instead of the food since the radiation won’t pass through metal like it does with plastic, paper, or glass).