What is the setting you use on your mill when crushing malt?
We do not have a set size of crush, it is not possible to give a set millimetre measurement that covers all of the malts due to it being a natural product that changes from maltster and seasonally. The crush completely depends on the malt, the size of the grain etc.. Theres alot more to it than just the size of the gap between the rollers. To then check the crush the malt is then assessed on test seizes which measure the separation to ensure that we have correctly crushed the malt. We have video that explains this in more detail here
Our standard crush is what we use on our brew tools, grainfather, and 3 vessel systems. We also offer a fine crush and this is for BIAB.