I want to use my mom's cast iron skillet which she used primarily for frying chicken but the lid is sealed/rusted/won't come off from the skillet. How can I get this lid off without breaking it?
There is a product called Naval Jelly that is designed to remove rust from metal items. Its available in our area at most hardware stores. Menards has it. Use a toothbrush to work the jelly in between the lid and the skillet and let it sit for 10-15 minutes. It literally changes the rust into a water-soluable paste that you can wipe away with a clean, wet cloth. Then you will be able to season your skillet (and lid) so it can be usable again. Hope this works for you.