I put this question in another thread but it was at the very end and not really clear, so I figured I'd ask again. I got a drum that held corn oil (the kind used in salad dressings, frying, etc.). It is unlined. Do you think I need to burn it out or can I just go ahead and make my UDS after rinsing it out? Heck, with a little corn oil being left in there it is pre-greased for seasoning, right?