Just finishing bagging up an 11 batch 85LB greens (includes one half batch load Kona) session that took ~4hrs from powerup pre-heat to cool-down shutoff. Thinking back a couple years when I was starting this insane professional journey waiting for this little USRC 3k to be built and was driving Two max overloaded voltage boosted CCR HotTops simultaneously with batches @~333gr to yield two pounds from 5 roasts at approximately 4 batches total per hr both running non-stop it would have taken TWENTY-NINE hours continuous roasting instead of four! Which meant I was insanely doing 12hr plus sessions most Sat & Sundays plus roasting virtually every night after closing the café for a number of months... I was NUTS!!!! (Still am:-)