[davemac.439]

It was this book that led to the creation of the Co-Operative movement in Britain, who started milling and selling their own flour, to the members of their co-Operative.

[Calvin Locke]

Chalk's been added to flour for thousands of years. I've read that hills around Rome disappeared into the stomachs of its citizens.

Years ago, I went to an ancient Egyptian exhibit. As part of life, it mentioned tooth wear from the omnipresent sand and grit "naturally" finding its way into flour/meal.

I'm thinking the "Egyptian gods of nature and harvest" weren't involved as much as the academics like to believe.

[Calvin Locke]

I was just thinking, Alton Brown did an epi on milling grains.

IIRC, his choice of home kitchen machine was a German model that sounded like it had a jet turbine powering it.

"The Food Jammers" also built a wind powered mill, but drilling a hole in the roof (in their case) might be a bit much.