The fineness difference of coffee bean grinding can be summarized as follows: the finer the grinding degree, the stronger the bitterness; Conversely, the coarser the grinding degree, the lighter the bitterness.

1, the taste of coffee is different, the coarse powder is larger than the raw sugar particles, and the taste is rough. Medium flour has the same thickness as sugar, and medium flour is slightly thicker than medium flour. Medium-fine powder has the same thickness as sugar, and the taste meets the needs of most people. The fine powder has large water yield and delicate taste. 2. The types of coffee made are different, and the coarse powder is basically not directly used to make coffee. Both medium powder and medium powder are suitable for making hand-brewed coffee. Fine powder is suitable for hanging ear coffee. Ultrafine powder is suitable for espresso. 3, coffee making tools are different, and coarse powder is suitable for boiling in a pressure pot. Medium powder and medium powder are suitable for boiling in a siphon pot. Three-hole filter cups are commonly used for fine powder, and the extraction area needs to be increased. Principle The smaller the coffee grounds, the shorter the time for water to penetrate into the center. Therefore, the faster the water is, the more acid, oil, solid and other substances on the surface of coffee powder can be extracted. The greater the contact surface of coffee powder, the longer it takes to extract delicious coffee from it.