When I ordered my pm kit from midwest,I checked off the crush option. All I got were cracked grain hulls,& the grains were still in one piece. So I used a mini food processor with 1/2C grain at a time. 3 pulses for 3-4 seconds per pulse. A fine crush,but that worked out well for biab. Wanna reduce the silt though.
Everything works if ya let it-Roady(meatloaf)