this post was submitted on 13 Apr 2024
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I knew nothing about cast iron pan care when I met my SO and I did his dishes for him one day and washed it with soap and water. I still hate the damn things and think they're filthy and nasty.
It's fine to wash them with modern dish soaps. The reason people say not to is because dish soaps used to have lye in them, which would destroy the seasoning. Just make sure you wipe the water off instead of letting it air dry or it can rust.
I keep reading the word seasoning, and for non native speakers this is hard. What are you all meaning? You put some garlic, salt and pepper on the pan and let it be?
Oil is placed on the pan and then it is heated to form a non-stick coating. This layer can have small holes in it, so the process is repeated many times. The holes do not line up, which makes the path for water to get through much longer or blocks it. This means water can not easily make it through all of the layers. That also means any water that gets in can't easily get out, and it can cause rust to form if it makes it through the coating and is left on there.