If you have good coffee, you have to choose a coffee maker.

First, it is necessary to choose machines made of food safety materials, that is to say, the quality of plastics must be good. In the course of use, there may be a strong smell of plastic, which means that the quality of plastics is not good. In addition, attention should be paid to choosing a slightly thicker outer wall.

Second, be sure to choose porous hot water. The more holes, the smaller the better. Generally, it is appropriate to choose more than 9 holes.

Third, judge whether the stability of the water temperature is high enough-- constant temperature, continuous high water temperature can make good coffee.

Fourth, the grinding degree of coffee beans, because different coffee has different requirements for coffee beans, if it is a fully automatic machine, then it is necessary to consider this index.

Misunderstanding in the use of coffee maker:

(1) the advantage of the American coffee machine is that it is convenient to brew a large pot at a time, but its disadvantage is that the heat preservation time is too long. Usually after more than 30 minutes, the coffee will begin to turn sour and bitter, and even the best coffee can not stand the heat preservation for a long time.

(2) many friends turn off their phones under the hot water for about 10 seconds, but in fact, before the coffee reaches the pot, you should wait 20 seconds to prolong the time for the hot water to stay in the coffee powder, so as to make the coffee more rich.