Coffee experts explain the six major coffee brewing methods in detail

1. Trickling filter: the structure of this trickling filter pot is very simple, there is only a conical container, much like a cup, the inner edge of the container must be covered with filter paper, put in coffee powder and soak in hot water. This method makes the hot water connect with the coffee powder once, and then fall into the cup, so it will only extract the substances that play a higher level, so you can brew the coffee with the least flavor and fragrance.

2. American electric coffee maker: there are two kinds of internal containers of the general electric coffee maker, one is funnel type, the other is wide and flat cylindrical. At present, in the electric coffee machine in the world, most of the internal nozzles spray hot water around, and the amount of coffee powder is so small that part of the hot water can only be sprayed to the filter paper, but not to the coffee powder. So most of them are brewed into a cup of diluted coffee!

3. French filter press: the pressure filter can best show the original flavor and wild. Its operating principle is to brew coffee directly with hot water and filter it with iron mesh, so it can extract almost all the substances that can be extracted. so it forms a turbid cup of coffee. And the flavor is very primitive and complicated.

4. Siphon pot: in fact, the siphon pot uses the air pressure of a water pipe to move the water in the lower half of the container to the upper half of the container to become a cup of coffee. So it is also called vacuum pot and plug air pot. Basically, siphon pots are not used in Europe and the United States, but they are very popular in Japan, Taiwan and the mainland.

5. Mocha pot: the mocha pot is composed of the upper pot, the filter screen and the lower pot, which is between the upper and lower pots. When brewing, the water is placed in the lower pot and the coffee is placed in the middle of the net. when the pot is heated, it produces steam and rushes the hot water up. Pass through the coffee powder, then into the pot to form coffee. Because its air pressure is relatively high, some people classify it as high-pressure cooking. Some people call it hand-made espresso, but it can't make the foam of espresso.

6. Italian espresso machine: Espresso is an easy way to brew coffee with technology. According to the standard of a cup of Espresso, the coffee powder is about 7 grams, the water temperature is about 95 degrees, the water pressure is about 10 atmospheres, and the brewing time is between 22 and 28 seconds. If the water temperature is too low, it will cause insufficient extraction and can only boil a cup of Espresso with insufficient flavor and sour taste. However, the excessive temperature of the water will cause excessive bitterness and astringency in the coffee. And the mellow taste mainly comes from its water pressure. And its brewing time will determine the characteristics of this cup of coffee, which will be completed in about 25 seconds. The coffee will only dilute the Espresso after the timeout.