You might not but more microwave meals come in plastic trays, as do most other microwave foods. I use mine mainly to reheat leftovers, which are in glass of cer

You might not but more microwave meals come in plastic trays, as do most other microwave foods. I use mine mainly to reheat leftovers, which are in glass of ceramic but that doesn't appear to be the majority use case judging from what I see at the houses of friends and family. Plastic and the microwave seem to be madly in love with each other.