The common method of brewing and extraction of coffee? Is leaching an ideal household method for brewing coffee?

How to extract coffee:

Soaking method

The easiest way is to put the coffee powder in the cup and add hot water. As it cools, the coffee powder will sink to the bottom of the cup. This is an old method, and it is still used in some parts of Indonesia. Be careful not to eat the coffee at the bottom of the cup. The advantage of this method is that it is simple and the water temperature is just right.

Pressure method

Espresso is made from 80-96 degrees Celsius hot water at 8-9 atmospheric pressure through compacted coffee cakes, usually only 30 milliliters per cup. It is one of the thickest of the common coffee, with a unique aroma and a touch of oil floating on the surface. It can be drunk alone; it can also be further made into a variety of other drinks. Because of the fast cooking, it has the characteristics of high concentration and low caffeine content.

Gravity method

First of all, put the extremely coarse ground coffee powder into the filter cup, the weight of the powder is about 10 grams per person. Then put the filter cup into the pot, add the hot water to a height of about 1 cm from the filter cup and begin to heat. When the hot water boils, the steam climbs along the central pipe and ejects from above. Hot water produces convection on the coffee powder in the filter cup, and the coffee ingredients are extracted.

Leaching method

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.

Ice brewing method

Ice brewed coffee, also known as ice drop coffee, is the biggest difference from the above four, that is, instead of using hot water, ice water produced by slowly melting ice is dripped slowly through a filter containing coffee dust. So making a cup of ice-brewed coffee takes a long time and costs a lot, but it tastes great.