I brewed an English mild which had a simple grain bill of 95% Maris Otter and 5% chocolate, with a bittering addition of EKG at 60 mins and another wack of EKG at 15 mins.
The mill gap was set to 1mm and the mill took 15 mins to crush a 4.7 kg grain bill. A bit slow but whilst it was crushing I measured out my water salt additions and prepared other items needed for my brew day. Every so often I would just top the hopper up with more grain and I could hear the motor change when it had finished.
The result was a very easy and consistent wort flow through the mash bed, herms and back to the MLT with no stuck mash. And an efficiency of 82% which is fantastic, as I would have been happy to get around 70%.
As you can see in the photo the wiper motor gives the husks a nice gentle pull apart so the flour can get out but the husk is still able to act as a nice filter medium for the mash bed.
