When my bf's cast iron gets crusty her dh lays them out in a trash fire and they come out looking like new. He usually calls to see if I want to bring mine over so he can 'burn' mine too. I do have to season them afterwards though. Mine are about ready for another burning, so maybe I will make a call.......(I have bought rusted ones from yard sales-- just cleaned them with brillo pads and reseasoned!) Never discard cast iron! I keep my 3 favorite skillets sitting onthe back of my stove because I use them almost every day. The rest I keep hanging within easy reach- I guess you can tell that I'm not a fancy decorator!LOL