wilserbrewer
BIAB Expert Tailor
A follow up question for those that grind their grain separately, do you change the setting of the mill for each?
Nealm
While in theory this sounds like a perfect way to proceed, I think a more practical approach is to set the mill fine enough for your smallest grain and lock it down tight.
These are rough, crudely built devices, not scientific instruments
IMO, I wouldn't bother with test mashes, but would just adjust the mill such that close to zero whole grains remain, and that close to all kernels are well fractured. If in doubt, tighten the mill and crush finer.