The Art of the Millstones, How They Work
Many larger mills have one or two pair of electricity driven millstones to grind stone ground flour. One mill in North Carolina has 4 pair of millstones that grind 24 hours a day, 7 days a week making nothing but corn meal. The combination millbakeries that have spring up across the country use electrically driven smaller pairs of vertical millstones to grind organically grown stone ground ...