First, filter paper brewing-the easiest brewing method [features] The simplest coffee brewing method. Filter paper can be discarded immediately after one use, which is more sanitary and easy to arrange. The amount of boiled water and the injection method can also be adjusted. One person can also brew, which is the best brewing method for a small number of people. [Of utensils] A drip chamber has one hole and three holes. The three-hole type is used here. The spout for injecting boiling water is preferably small and sharp, so that the boiling water can be poured vertically on the coffee powder, which is more appropriate. [Key points of brewing] 1. One serving of coffee powder is about 10- 12 grams, while boiling water is 120сс. 2. For people who like light coffee, the amount of powder is about 8 grams per person. 3. For people who like bitter taste, the amount of flour can be one person 12 gram, and they are fully cooked. 4. The pot for hot water injection is easier to operate if it is filled with about seven or eight minutes, and the amount of boiling water is prepared according to the number of people. 5. Heat the beaker to such an extent that it will not boil before injecting it into the coffee cup. 6. Don't drop the filtered extract to the last drop (if all drops are finished, there may be odor or impurities, etc.). [Procedure] ① The following part of the filter paper is folded along the seam and then put into the drip. (2) Pour the ground coffee powder into the drip with a measuring spoon according to the number of people (about 10- 12G per person), and then tap it a few times to make the surface flat. (3) Boil the water in a teapot, pour it into a fine-mouthed kettle, gently and steadily inject the boiling water from the central point, and slowly make the boiling water permeate and spread all over the coffee powder in a spiral way. Be sure to pour it in slowly. (4) In order to extract the delicious ingredients, steam the puffed coffee powder for about 20 seconds. ⑤ The second boiling water is slowly injected from the surface of the coffee powder. The amount of water injected must be consistent with the amount of coffee liquid extracted, and the amount of filtered water should be kept constant. ⑥ Stop the extraction when the number of people reaches, and discard the filter paper in the state of boiling water.