What is hand-made coffee? how much is better than gouache in hand-brewed coffee?

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Hand flushing, as a method of extraction, is also known as "drip brewing". It was invented by the German Ms. Mellita in 1908 (that is, the German filter paper brand Mellita).

Extraction principle: put coffee powder into filter paper or filter, inject hot water of 85-94 degrees under atmospheric pressure, and get coffee liquid by gravity natural dripping extraction.

Common hand punches are: V60 filter cup, bean grinder, hand punch pot, electronic scale, electronic thermometer and so on.

What is coffee made by hand?

Hand-brewed coffee, as the name implies, is to pour hot water on the coffee powder, extract the coffee through filter paper and filter cup, and brew it by hand for about 3 to 4 minutes. The flavor of each brewed coffee will be different because of the change of water temperature, flow rate and direction, so although the utensils and operation are very simple, they still pay great attention to techniques and experience.

First of all, let's briefly explain the process of coffee beans to a cup of coffee liquid.

Coffee beans are the seeds of coffee fruit. Raw beans must be treated first and roasted into ripe beans in the hands of the baker.

Then, put the beans into a bean grinder and grind them into a uniform coffee powder. Ground into powder in brewing, water can easily screen out good coffee aroma components!

The coffee grounds insoluble in water after extraction can not be eaten!

The truth is just like when making tea, when the tea leaves filter out the tea, the rest of the tea residue can not be eaten.

In the production of hand-brewed coffee, the amount of water has a great impact on the flavor of coffee, different powder-to-water ratio will affect the flavor, taste and so on. The water supply is less, too rich, and the flavor is not clear enough; the water supply is too light and even tastes like a cup of coffee-flavored water.

As we all know, the ideal extraction rate of gold cup extraction is in the range of 18%, 22%, and the concentration range is in the range of 1.15%, 1.45%.