Coffee grinder selection criteria How to choose a grinder

First of all, it must be stated that a good grinder is not! Chang! Heavy! Yes!

I have seen many people who would rather spend a considerable sum of money on other coffee-making equipment than equip a good grinder. In fact, the size, shape and uniformity of the ground particles will directly affect the extraction rate of coffee, and further affect the quality of the whole cup of coffee. To some extent, the grinder is even more important than the coffee maker itself. If the equipment is not good, it can still make up for the defects of the equipment through constant practice and skillful techniques; The quality of the grinder is not high, but it is also powerless through practice. So when it comes to coffee equipment, I recommend that you invest at least 25% of your budget in the grinder, and even 50% is not too much.

A good coffee grinder is mainly reflected in the following aspects:

The uniformity of grinding is the most important thing to judge the quality of the grinder. Uneven grinding will cause uneven subsequent extraction. Some parts of the coffee powder are not fully extracted, but some parts have been extracted excessively. Finally, the whole cup of coffee has a miscellaneous taste. One of the most common problems is that coarse grinding produces fine powder, which causes coffee to be bitter. Although even the best grinder will have fine powder phenomenon, but some low-end grinder fine powder phenomenon will be especially obvious.

The heat generated during grinding, the aromatic substances in coffee powder are very volatile, and the heat generated during grinding will accelerate this volatility. A good grinder can control the heat generation within a certain range through reasonable torque. However, if you drink your own coffee at home and grind only a small amount of beans, the effect of fever can be ignored.

Grinding speed this point needless to say, certainly the more time and effort the better. However, it should be noted that some low-end grinding machines simply rely on increasing the speed to improve efficiency, which will cause a large amount of heat to be generated as mentioned in the second point. A good grinder generally achieves a balance between heat generation and efficiency by low speed and high torque.