I just tapped a belgian wit brewed with flaked wheat and did not mill. Probably one of my best beers yet. Best effeciency I have seen in my last 4-5 batches as well.
Never gummed up my mill, ever. Not sure if it effects other folks differently. Mill it or dont mill it. Why is this an issue? It seems like some folks always over-complicate things.
Okay, dont ever mill your flaked barley or wheat, its just bad! Sheesh!
The flaked grains have been gelantinized. I have read a few times that they should not be milled. At my LHBS, AIH, the is a notice on the store’s mill that says “do not mill flaked grains”.
I always mill flaked grains. Not because they need to be milled, but because I’m old and forgetful. Nothing worse than having a low OG and then finding a bag with a couple of pounds of flaked grain sitting on the counter. Closely related, I discovered that milling Minute Rice does improve extraction.
I’ve milled flaked grains before, but not on purpose. Everything tends to get mixed together when I weigh out my grains. I certainly haven’t seen any harm come from it.