How to adjust the thickness of manual coffee bean grinder

How to adjust the thickness of manual coffee bean grinder

The amount of grinding and the thickness of the powder are related to the variety of coffee beans, generally light and moderate roasted coffee beans have a thicker powder. General depth, French, black roasted coffee beans grind out finer powder. The standard of grinding amount is 7g ±0.8g when using conventional bean grinding pot each time. The main requirements for thickness are as follows: G ≥ 0.711mm 50% ≤ 0.711 ≤ g ≤ 0.355 mm,30%;g ≤ 0.355 mm,20%. At present, we, the United States with EIGHTO? CLOCIC beans, Europe uses TCHIBO as the standard bean to design grinding capacity and fineness. In the detection of the thickness of coffee beans, it can be directly used to determine, and in those large coffee bean processing plants, it can also be used to determine and analyze the magnetic metal content in coffee beans.

When grinding beans, the size of the powder depends on the way it is cooked. The shorter the cooking time, the finer the ground powder; the longer the cooking time, the thicker the ground powder. Sixth, in terms of the actual way of cooking, it takes a very short time for the ESPRESSO machine 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 wind" way, and the coffee powder belongs to 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 appropriate 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 over-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 it is too late to dissolve the water-soluble substance in the powder.

There are different brands and types of bean grinders for grinding coffee, and the ideal one is a grinder that can adjust the thickness of the beans. When grinding with a bean grinder, do not grind too much at one time, just enough powder for one time, because the longer the bean grinder is used at one time, the easier it is to get hot, which indirectly causes the coffee beans to be heated in the grinding process and causes the aroma to be released in advance, which will affect the aroma of the cooked coffee.