Coffee grinder ghost tooth or flat knife which is better than the domestic little Fuji ghost tooth grinder

Coffee grinder ghost tooth or flat knife which is better than the domestic little Fuji ghost tooth grinder

A simple example is stir-fried sour and spicy shredded potatoes. If some of the shredded potatoes you cut are thick and thin, then you will find that the thick ones are still raw when you stir-fry the fine ones and put them into the pan. But if you stir-fry the coarse ones, the fine ones will be fried into mashed potatoes! So a good bean grinder is the first product for good baristas in the field of boutique coffee, rather than coffee machines or other extraction tools! This is why the price of bean grinders with excellent performance can be tens of thousands of reasons!

The Italian bean grinder is divided into a cone knife and a flat knife.

The cone knife type bean grinder is longitudinal grinding from top to bottom, and its path is longer. its advantage is that it can use lower rotational speed to achieve better grinding effect, produce less heat energy, retain more aroma of coffee powder, and the demon's thickness is more even. make the flavor more clear, but the price is also much more expensive.

The uniformity of grinding is the most important thing to judge the quality of the grinder. uneven grinding will cause uneven extraction in the follow-up, often some parts of coffee powder have not been fully extracted, while some parts have been excessively extracted. finally, the whole cup of coffee has a bad smell. One of the most common problems is that fine powder will be produced during rough grinding, resulting in bitter coffee. Although there will be fine powder phenomenon in even the best grinder, the phenomenon of fine powder in some low-end bean grinders will be especially obvious.

The heat generated during grinding as mentioned in the previous article, the aromatic substances in coffee powder are very volatile, and the heat during grinding will accelerate this volatilization. A good grinder can control the heat within a certain range by reasonable torque. However, if people drink their own coffee at home, they only grind a small amount of beans, and the effect of fever is negligible.

Needless to say about the grinding speed, the more time-saving and labor-saving, the better. However, it should be noted that some low-end grinders simply increase the speed to improve efficiency, which will cause a large amount of heat as mentioned in the second point. A good bean grinder generally achieves the balance of heat production and efficiency through low speed and high torque.