I burned out the drum. I only had like a clearish golden color liner. The ? is now I'm wire brush cleaning it out. There is ash stuck to the side and rust. Do I have to get down to bare metal all for the whole thing? or will some be ok?? Then on the seasoning I rub fat all over the inside then get my temps up to 350 for an hour or so. Then bring it down to 250?? then cook a fatty. Thanks for any help I'm a big time noob.