Originally Posted by Rev2010
So that's one rotation per minute.... yeah that is waaaay too slow. If you can hand crank faster why would you want that slow a motor?
170 is also too slow.
WTH are you basing that on?
Lets back up for a sec. What kind of mill are you using?
Most mills do really well between 150-200 rpm's. The one thing to keep in mind while adjusting your mill, is that you will get a finer crush as rpm's increase. The downside is that husks also tend to get more shredded. This is why most mills do well in the stated range. You preserve husk integrity by going a little slower.
I would say you'll be very happy at 60 rpm's. My advice would be to mill 1/2lb at a time and keep tightening your gap until the husks start looking like they are the verge of being overly shredded. This will maximize your efficiency and ensure you have a smooth lauter/sparge.