stone hopper grinding

  • The Best Countertop Grain Mills and Flour Grinders in 2019 ...

    Mar 26, 2019 · Burrs consist of two grinding plates, either stone or steel. One plate is fixed to the housing unit and is called the "bedstone," while the other plate is rotated and is known as the "runner." Grain is fed from the hopper between the burrs, where it is then crushed and pulverized as the runner plate turns against the stationary bedstone.