The difference between flat knife and taper knife of bean grinder

The main difference between the flat knife and the taper knife of the bean grinder is the difference in the grinding method and the characteristics of the coffee powder produced.

Flat knife bean grinder:

The flat knife bean grinder grinds the coffee beans into particles by cutting the upper and lower two parallel blades, so the shape of the ground coffee is mainly flake. The advantage of this grinding machine is that it can produce more fine powder, making the aroma and layering of coffee more obvious, but the disadvantage is that too much fine powder may lead to excessive extraction and produce miscellaneous taste.

Flat knife grinding machine is mostly used for Italian coffee production, of which the size of the flat knife has 58mm, 64mm, 83mm and other different specifications.

Conical cutter grinder:

The conical cutter grinder grinds the coffee beans into particles through the combination of two cutters inside and outside, so the shape of the ground coffee is mainly blocky. The advantage of this grinding machine is that the fine powder produced is less, the particle uniformity is higher, the flavor is more full and round, and the sweetness is strong. The taper cutter grinding machine is mostly used for hand grinding machine, which has high grinding efficiency, small volume and small torque during grinding.

In general, the flat knife and the conical cutter grinder have their own advantages, and the choice of which grinder depends on personal taste preferences and the needs of coffee production.