Sep 27, 2019· To evaluate coffee grinders, Lui and her team grind a total of 40 pounds of coffee, measuring how uniformly each model turns out coffee on coarse, medium, and fine grind settings.
Conical Burr Grinders
Flat burr grinders work by grinding coffee beans between two flat rings with serrations to a uniform size. The ringsConical burr grinders do the same, but with cone