This past weekend I smoked two pork butts in the UDS. Yesterday I went to clean out the ash pan and discoverd it was almost floating in a lake of liquid fat in the bottom of the drum. Has anyone ever built a UDS with a bottom drain plug to avoid haveing to pour the fat out? My other thought would be to put something like kitty litter in the bottom to absorb the fat and then just scoop it out. I know the problem could be solved with a drip pan but from reading things on this forum I wanted to see how the vaporized material affected the taste of the meat. What have others done?