Piston coffee brewing method
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.
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