Two methods of coffee brewing: piston coffee stewing

The piston method, some say, was invented in 1933 to extract the most flavor of ground coffee beans. Heat the pot in advance, add the rough ground coffee to the bottom of the pot, add hot water, then stir and boil for about three to five minutes, separating the ground coffee powder from the coffee drink before the piston has completely lost its strength. This method is only a little more convenient than filtering, but it is also one of the top two ways for more and more people to make fresh coffee.

Stewing can be said to be the easiest way to make coffee. That is, just put the rough ground coffee and hot water together. It is very similar to piston coffee brewing, except that there is no piston pot that can separate the ground coffee powder from the coffee drink. Stewing has become more and more accepted and used because it is always a good way to serve everyone.