Methods of coffee brewing

There are numerous different methods of coffee brewing. They are commonly divided into two categories: immersion brewing and percolation brewing; however, there are methods that combine those as well. The first known method for brewing coffee was to have very finely ground coffee mixed with boiling or near-boiling water. In the years since, many different methods for brewing have been devised.

Immersion brewing

Cafetière

The cafetière or the French press is a method of brewing coffee that involves having generally coarsely ground coffee placed in a container over which nearly-boiling or boiling temperature water is poured over the coffee. The mixture is left to infuse and after a period of time the piston filter is pressed down into the mixture to filter out the grounds.

Percolation brewing

Drip coffee machines

Drip coffee machines are one of the most common methods of making percolated coffee. They have a basket in which ground coffee in a filter is placed. Then water is heated by the machine from the water reservoir, which then pours over the ground coffee.

Percolator

Percolators function by placing water in the bottom of the device and then inserting a metal filter held up by a rod in the same container. Ground coffee is placed on the filter and a spreader plate is placed on top of the ground coffee. The water is heated from the bottom, being forced via pressure through the rod onto the top of the ground coffee and then the result filters down into the bottom of the chamber.

Notes

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