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How to grind coffee beans correctly? Under normal conditions, the coarseness of coffee will be related to the extraction time and extraction rate.

Published: 2024-11-05 Author: World Gafei
Last Updated: 2024/11/05, How to correctly grind coffee beans the degree of grinding should be proportional to the extraction time. The fineness of coffee grinding will directly affect the extraction time and the extraction rate. The finer the coffee is ground, the denser the powder layer is, the more coffee powder particles are in contact with hot water, the greater the extraction resistance, the easier it is to prolong the extraction time and improve the extraction rate, and it is easy to over-extract. On the contrary, the thicker the coffee is ground, the more powdered it is.

How to grind coffee beans correctly

The degree of grinding should be proportional to the extraction time. The roughness of coffee grinding will directly affect the extraction time and extraction rate. The finer the coffee is ground, the denser the powder layer is, the more coffee powder particles are in contact with hot water, the greater the extraction resistance, the easier it is to prolong the extraction time and improve the extraction rate, and it is easy to over-extract. On the contrary, the coarser the coffee is, the larger the gap in the powder layer is, the less coffee powder particles are in contact with hot water, and the weaker the extraction resistance is, the more difficult it is to prolong the extraction time, and reduce the extraction rate, which is easy to be insufficient. Therefore, the finer the coffee is ground, the longer the extraction time and the higher the extraction rate; the thicker the coffee is, the shorter the extraction time is and lower the extraction rate. Under normal conditions, the fineness of coffee is inversely proportional to the extraction time and extraction rate. The coarser the powder is, the smaller the extraction resistance is, the greater the coffee flow is, the shorter the extraction time is, the lower the extraction rate is, and the lighter the taste is.

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