Plastic containers heating safety

Good night everyone! **waves** I'm refusing to go to bed and therefore finish my weekend so here i am, lol! I've been thinking of this lately and thought this may be an interesting topic for you all. There are lot of bento boxes tagged as "microwave safe". I always prepare my food to be eaten at room temperature but all my job mates do reheat their food in the microwaves we are provided at work. Some of them carry crystal boxes that have plastic lids so they are completely safe when reheated. But most of them carry plastic boxes and throw them at the microwaves.
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