The two electronically adjustable ceramic disc grinders are precision made using an incredibly hard material so that they can grind the coffee to the optimum fineness. The Automatic Grinder Adjustment (A.G.A.) delivers phenomenal results every time over the grinder’s entire service life. There are two self-adjusting grinders so that two different coffee varieties can be used, either individually or mixed together. The mix of coffee can be selected in increments of 25 % (for instance, 100 % left, 75 % left / 25 % right, 50 % left / 50 % right, and so on) to ensure you can always select the perfect blend for your taste.