With the Aergrind, Knock has produced an excellent hand grinder for all coffee preparation methods. It convinced us immediately. The mill is stable, the conical burrs are of high quality, and produce a very even grind. The adjustment of the grinding degree is easy to handle and the magnetic lid fits the overall well-designed, durable coffee utensil. An Aeropress swallows the grinder snugly in its plunger and the two are a reliable duo for on-the-go - with a little passenger coffee even an unbeatable trio.