<<Disclaimer: Verify this information before applying it to your situation.>> I received my Grain Master Whisper Mill and I am indeed pleased with it! After reading the directions carefully, I milled two cups of rice to clean the machine. Then, I really gave the mill a workout. Here are the grains I milled: Brown rice, Pinto beans and Popcorn. The mill gave me flour that is very fine and not grainy. Here are some tips: I didn't fill the hopper to the top, instead I fed the grains into the hopper. After each grain, I bagged my flour, thus the mill had a short rest. To clean the mill after each grain, I let the mill run for 30 seconds. The results were very satisfying and I have several freshly milled grains. WARNING: Check your beans carefully, as I found a stone in the pinto beans. (Not good for the mill.) Mitzi in Michigan [log in to unmask]