When we bought the first HVC stove, we immediately "known" her grandmother. They showed a mode for heating and freezing and banned putting metal there. She emerged quickly enough and by the evening already praised the new technique for convenience. The next day, she put the farch in the microwave and put it to freeze. She came into the room, sat down on the chair with a smile and said, "What has the technique come to! Heats food with light and freezes it with light and even lightning! What a beauty, I admired for ten minutes!”
We quickly rushed to the stove, but it was no longer possible to save it, the entire rear wall slipped. It turned out that the grandmother put the farce in a foliated packaging. I didn’t know there was metal.