Ceramic burrs provide even and consistent grinding, are durable and do not influence the flavour of coffee. You can set the grinder for the brewing method of your choice - whether you are an AeroPress user or a Chemex fan. The grind size is adjusted with a knob under the bean container. It is quick and easy. The upper container holds up to 24 grams of coffee. This amount is enough for 1-2 people.