Coffee bean crushing fineness-coffee beans can be crushed with a grinder

Coffee bean crushing fineness-coffee beans can be crushed with a grinder

When grinding beans, the size of the powder depends on the way it is cooked. Generally speaking, the shorter the cooking time, the finer the ground powder; the longer the cooking time, the thicker the ground powder. In terms of actual cooking, the Espresso machine takes a very short time to make coffee, so the grinding is the finest, and the coffee powder is as fine as flour; it takes more than a minute to cook coffee in the "plug air" way, and the coffee powder is medium-sized grinding; American filter coffee takes a long time to make, so the coffee powder is the thickest, one by one like Beijing grains on a shell beach. Grinding coffee powder with the right thickness is very important for making a good cup of coffee, because the extraction of water-soluble substances in coffee powder has its ideal time, if the powder is very fine and cooked for a long time, resulting in excessive extraction, the coffee may be very bitter and lose its aroma. On the other hand, if the powder is coarse and cooked too fast, resulting in insufficient extraction, the coffee will be tasteless because there is no time to dissolve the water-soluble substance in the powder.

Each coffee utensil has its own suitable degree of grinding, so we don't use whatever degree of grinding we want. As mentioned above, the coffee powder is too coarse or too fine to make coffee, that is to say, the most suitable grinding degree is medium to medium roughness.

The following is the relationship between the grinding degree of coffee powder and the extraction method:

1. Suitable for fineness grinding: Turkish copper pot, mocha pot, espresso machine.

2. Suitable for medium grinding: filter paper dripping filter, flannel dripping, plug air kettle (also known as siphon kettle).

3. Suitable for roughness grinding: dripping coffee machine, dripping filter pot.

There is another reason why espresso and Turkish coffee use deep-roasted coffee. Because deep roasting will make coffee beans soft and easy to grind a little finer. Although this is a bit superfluous, some Italian-made bean grinders cannot crush lightly roasted hard coffee beans. The grinder is originally designed for deep-roasted coffee beans, which can break down immediately when used to grind light-roasted coffee beans with hard texture. It seems that the performance of the bean grinder also represents the personality of the country.

The grinding of coffee is finished here. I hope it will be helpful to the friends. In future articles, it is more about sharing some tips and knowledge of coffee making with friends.