I took the racks and wood tray out and threw them in the dishwasher. I then took the water pan and drip pan and soaked in hot soapy water (dawn dish soap) and some white vinegar. I then scrubbed the hell out of them but eventually they were pretty close to silver again. Then I went out and scrubbed the inside walls and window with apple cider vinegar and hot water. Then I turned on the unit to 275 for 4 hours (still going) so did I do it right or did I just make a bigger problem for myself? I don't want a dirty Greasy cooker. But I want some kind of seasoning on there. PS. I have my vent closed off to keep steam inside.