Mockmill, Komo (& Others) Grade Equivalents?

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I am creating a guide to making oatmeal (i.e. stone-ground, the type used in Britain before rolled oats came a long in 1877) using a home mill and oat groats.

I have all the details documented for the Mockmill (the mill I own) - the grades and the sizes of sieve used. I would love to expand this to people who have a Komo or other grain mill by giving the actual distance the stones are apart or the equivalent settings on other mills...but I cannot find this information anywhere. 

Has anyone documented equivalences between Mockmill or Komo grades? Or does anyone know how far apart the mill stones actually are on each of the Mockmill grades?

Thanks!

My Komo Mio doesn't have grades delineated like a Mockmill does. It has a dot on the hopper and you turn the hopper to adjust the grind, but I just start it up pretty wide and then turn it until I just hear the stones touch, then back off one click. You could count the clicks in your head as you open it further, but there's no way to physically measure the distance between the stones while the mill is put together, and you have to open them all the way to take it apart.

Instead of attempting to specify distance between the stones perhaps you could characterize the results of the grinding. Possibilities that come to mind include:

  • texture eg "it should feel like coarse salt" or "it should look like polenta" or whatever.
  • what fraction should pass through a mesh
  • how much a given volume should weigh? (seems subject to humidity)

Maybe some of those will work.

Gary