American trickling filter kettle

French filter kettle (French press)

It is a tall, thin glass cylinder with a piston with a filter. Soak the hot water and coffee powder in a cylinder for four to seven minutes, then press the coffee powder to the bottom by a piston filter, and the top coffee can be poured out to drink. This "complete immersion method" is considered by many experts to be an ideal household method for making coffee.

The filter kettle is not a new invention, it was originally mainly used in black tea, so it may be regarded as a new invention to use it in coffee. It is very popular in Europe and the United States, especially in France, where almost every household uses this kind of filter kettle.

Of course, the reason for the rapid popularity of filter pots has something to do with simplicity. Put the medium to medium coarse ground coffee powder and hot water (90 ℃ ~ 95 ℃) in the pot, stir gently with a spoon, close the lid, pull the pressure bar up and let it simmer for about 4 minutes. Then hold the handle of the pot, press the pressure bar slowly and it is done. The difficulty is that it is more difficult to confirm the freshness of coffee powder than trickle extraction. Trickle extraction can judge whether the coffee powder is fresh or not by the state of the expansion of the coffee powder, but the filter kettle extraction is to soak the powder in water, so it is impossible to judge.