I was attempting to warm up some food recently and completely didn't notice that there was a small/thin ring of metal running around a plate I own.
So I put the plate in the microwave to warm up food for 30 seconds and during 5 seconds of warmup, I saw a few sparks.
I quickly stopped the microwave, opened the door and took the plate out.
I have 2 related questions:
Has my microwave been rendered useless because of this?
If microwave is not broken, will any future food warmed up in it be toxic because of the sparks?