Hess, if they are not rusted and are just "scabby" looking, the easiest way to clean them is a self clean cycle in your oven. All the black crust will turn to ash and you will have a pan that looks like it just came out of the mold. Wipe off while dry. Putting it in the sink like this will almost make it rust before your eyes. Wipe a very thin coat of lard on the entire pan inside and out and either bake in the oven at 350 degrees for about 2 hours or do it on the stove top like in my link above. I ONLY use lard for my initial seasonings. It works a lot better than anything else and believe me I've tried them all. Once you get it well seasoned, you can cook with any oil you like but that first seasoning is best done with lard. Other stuff will work and some of it pretty well but not quite as well as lard.