. "If you just remain consistent, you will be fine but about 30 to 40 pounds is a place to start.Beans with lots of oil ...... not really a good thing in the view of most here, by the time you get lots of oil on a fresh roast (less than two weeks from the day it was roasted) you are out of the good flavor of the beans and into the flavor of the roast, more charcoal than anything else, but if that is" . . .