It is usually just some ash on the inside. I wash it out and after a good wire brushing and after a test burn it is pretty much smoked up inside.
I see no need to scrub it out anymore. One butt cooking and it will have enough grease to seal in any rust and ash that it is never a problem.
I have a lot of drums cooking out there and have never had any problems. Now if I could just find a Stainless Steel drum for less than $300!!!!!!!
Nothing like the look of stainless.
To me there is no better cooker than the UDS. It is extremely fuel efficient and you can cook 3lbs. of chicken or 40 lbs. of butts on the same cooker. I have 4 now so I can go mobile and still cook for 50-100 people.(I have a large stationary cabinet cooker for home cooking!)
And did I mention CHEAP! Two of my drums are automated.(temperature control) I was thinking of putting a smoke generator on the side of this one so I could use wood chips more efficiently. Hey, why live if you cannot experiment!
Bill Napper. Team Cook "JoeJo's BBQ"
Custom offset stickburner
Gas assisted cabinet smoker (400 lb. capacity!)
55 gal. drum smokers galore! (All custom built)