Really like my Tesla, but it caved in on me. Maybe had it in a bad place in my bag I guess. Any advice on how to make the top flat again
I've brought some water to a boil, took the pot off the burner, dipped the disc in for about a minute, then pulled it out, and set it top down on the counter and put another pot on it to keep it flat while it cools. May be other methods as well, but that's always been fine for me.