Coffee grinders

Freshly grinding coffee is worthwhile, as many volatile aromas escape shortly after grinding. Therefore, we recommend grinding whole beans with a coffee grinder just before preparation. This way, you always have control over the grind size and achieve the best flavor. We'll give you a brief overview of the different types of coffee grinders and how they differ.

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Coffee grinders from Süssmund Kaffee

Elektrische Kaffeemühle mit Scheibenmahlwerk aus Stahl Eureka Mignon Specialita

Coffee grinders with disc grinder

Electric coffee grinders with disc grinders are widely used. The grinding discs, usually made of stainless steel, ensure a fairly even grind, provided the grinding discs are not blunt. Centrifugal force pushes the beans from the inside out, where they are ground between the grinding discs, which become increasingly narrower towards the outside. In the best cases, the grinding level can be continuously adjusted. The lower disc is usually screwed in place, while the upper disc adjusts the distance between the discs and thus the grinding level. It should be noted that these often operate at a higher speed than conical grinders, which can generate more frictional heat. If the ground coffee gets too hot during grinding, the coffee will taste bitter or burnt. Therefore, the lower the speed and the sharper the grinding discs, the less frictional heat.

Elektrische Kaffeemühle mit Kegelmahlwerk aus Stahl Baratza Encore

Coffee grinders with conical grinder

Many hand grinders, entry-level electric coffee grinders, and even very high-quality coffee grinders for the catering industry have conical burrs of varying quality built into them. Theoretically, the low speed generates less frictional heat, which means the coffee beans are ground more gently. However, this usually only applies to high-quality coffee grinders. Cheaper coffee grinders with weak motors and low torque sometimes reach higher speeds than grinders with disc burrs and also generate unwanted frictional heat.

The conical grinder consists of a serrated cone that rotates within a fixed, equally serrated, ring-shaped tunnel. The distance between the cone and the tunnel decreases toward the bottom. Gravity pushes the coffee beans downward into the grinder and grinds them. The conical grinder also offers infinitely adjustable grinding settings, depending on the model.

Frequently Asked Questions

What types of coffee grinders are there?

Most coffee grinders have either a conical grinder or a disc grinder, while cheaper and older models often have an impact grinder.

How does an impact mill work?

Old or cheap coffee grinders are often equipped with an impact grinder. This consists of propeller-shaped blades that chop the coffee beans rather than grind them. This inevitably leads to unevenly sized coffee particles, a heterogeneous ground coffee, and thus uneven extraction during coffee preparation. Therefore, we strongly advise against coffee grinders with impact grinders.

Is there a difference between ceramic and stainless steel grinders?

Ceramic grinders are often installed in fully automatic coffee machines because they are more space-saving and less expensive than stainless steel grinders. While stainless steel is more robust than ceramic, ceramic grinders are less sensitive to frictional heat.

Which grinder is best for coffee?

There's no single answer to this question. Choosing the right coffee grinder depends on the intended use (home or professional), the type of ground coffee (filter coffee or espresso), the handling (electric or hand grinder), and the available budget. If money is no object, the most consistent ground coffee can be expected from a high-quality, low-speed conical grinder. In reality, however, several factors must be considered. Home baristas often approach the matter with a hand coffee grinder and subsequently invest in an electric coffee grinder.