Hello all!! This is going to be my first UDS build. "Winter Project". Anyway my friend gave me a 55Gallon barrel he told me it comes shipped with a Plastic Bag filled with steel Wherl weights. Here is my question. The barrel is very clean on the inside. I see a lot of people saying stuff about colored Liners? I'm in a place that I really can just set it outside on fire to do a burn. Would it be safe to just take a drill and wire wheel or some kinda attachment to grind the inside to bare metal. And what about the outside? Do I really need to grind sand the outside paint. As I would just be repainting it anyway. Will the factory paint on outside hurt my food? Any suggest or help would be great. I can post a picture of barrel tomorrow if anyone would want to see it.