School me on cast iron!

[Special T]

And or warp so won't sit flat. Put in ove cold on clean cycle and let cool slowly.

[Kingofthemountain83]

Hearing Griswold and heat cleaning make me cringe. I'm not a metallurgist so I don't know how it happens but I have seen enough nice old pans with heat damage to know it's a thing. It's a real shame to wreck old pieces.

For my own curiosity, what does heat damage in an old pan look like?

I got one that I left one the burner to dry out real quick on high for an hour or more... Had that pink tinge when it cooled... It bowed the bottom up... I wire wheeled it down... Then hit it with some steel wool... Had to reseason it... Still works fine... Eggs slide over to the side...