The grinding level of coffee powder has a great impact on the taste. The finer the grind, the finer the particles of coffee powder are cut, and the shorter the distance between the surface of the powder and the center of the powder. The shorter the time it takes for water to reach the inside of the powder, the easier it is to extract the flavor of coffee, resulting in an increase in the concentration and extraction rate of coffee, and a more intense taste. On the other hand, if the grind is coarse, the concentration and extraction rate of coffee will be low, and the bitterness of the coffee will be stronger.

In addition, from the perspective of the taste of coffee, the finer the grind, the higher the concentration and extraction rate of coffee, and the richer the taste will be. On the other hand, if the grind is coarse, the concentration and extraction rate of coffee will be low, and the bitterness of the coffee will be stronger. Therefore, to achieve a balanced cup of coffee, the appropriate grind should be selected based on the type of coffee to be made and the individual taste preferences of the consumer.