If it's stuck on real good, one thing I have found that seems to help is running a real moist heat in it to get the insides wet, then then a dry heat and dry it out real fast. Then it kinda starts to flake apart and you can scrub it out a lot easier. This is what I do on my WSM's. I'm guessing a UDS could be similar. Otherwise, just get some good cleaner, and start scrubbing away.
I'm just lazy is all.
Originally Posted by Norcoredneck