never smoke a bottom round roast so why not. got two of them here it is with my rub. going into the frig. for few hours. i'm going to try "Chef Jimmy's Au Jus" with the roast. I'm cold smoking some CB for about 4 hours then going to throw it on the smoker with the roast I build my first UDS few weeks ago and last weekend I filled my basket with 10lbs of lump charcoal. smoke around 6 hours saturday and about the same on sunday .this morning when i look in the basket. still got about a half of my basket left now my side fire box smoker would have used at least two bags or more will add more Q-views as the day go on.