2Roller Grain Mill Gap Setting : r/Homebrewing
WEBMost people stick with " (credit card thickness) gap, I believe, but I have found that best thing to do is to experiment a bit and get the perfect crush. I, personally, go way over for a coarse crush leaving husks whole but endosperm cracked in 23 pieces, and I get 85+% efficiency in my herms. .040 for my two roller Monster Mill.