I have my Mom's & Grandma's cast iron skillets. I use them occasionally anymore as I get older & they seem to get heavier!!!! LOL I always washed mine in hot water with a scrub brush, put it into the oven to dry, then wiped it with oil or shortening, & put it back in the oven at 325 deg. for an hour or more, upside down. When done, wipe out with a paper towel, & store in cold oven. This has worked for years & years & years....