my go to method has been a self-cleaning oven. I have reclaimed 5 or 6 pans and pots that way. Pull out of oven ( when it releases )with soaked towel , and go after with steel wool. Clean up with soap and water with sos pad. Wash and rinse , then coat witrh oil,into oven at 350 for hr. ,cool down , and you are good to go! I promise it works VERY well!