AZ list of natural foods and their dietary and medicinal benefits.

If they are flaked/rolled oats, there really isn't a reason to mill them. The finer grind might slightly improve efficiency, but there's nothing about it that would specifically improve their contribution to mouthfeel (as far as I'm aware). There wouldn't be any harm either though, unless they are a high enough percentage to cause a sticky sparge.
Feb 24, 2014 · Baking bread when I was growing up meant first slipping down to the basement larder and grinding the grain. The machine was absolutely deafening, but I loved the smell of freshly milled flour and the way it floated down to form miniature snowy mountains in my bucket. My mother still grinds her own ...
When purchasing oats, there are four types to choose from but some of these oats are better than others for making oat flour. The Wonder Junior hand grain mill can grind all four of these oats but the WonderMill electric grain mill is only warrantied to grind oat groats and steel cut oat, not rolled oats or quick oats.