Works great. I ran dried spent grains for two minutes. It got too hot. I then ran for one minute. Got the consistency of flour I wanted. Made 4 gallons of flour from 12 gallons of dried grains. At one minute per batch with transfer time for cool down, I was able to process the entire batch without extra down time. I am planning to get a larger grinder to process faster. Recommend this item for small to medium batches.