The Secret of hand-made Coffee how to correctly steam the amount of hand-stuffed steam

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Methods of steaming and water injection of hand-brewed coffee data of water temperature and powder-to-water ratio of hand-made coffee

What is steaming?

The process of soaking coffee powder with a small amount of hot water before a large amount of water injection is called steaming.

This is the key to hand brewing coffee, and its main purpose is to drain the CO2 from the ground coffee powder and let hot water into the powder to facilitate the next extraction.

How long is the best time for steaming?

Generally, about 30 seconds, but there will be some changes with the roasting degree of coffee. The deeper the roasting degree is, the shorter the steaming time can be, so as to avoid the bitterness of excessive extraction. The lighter the roasting degree is, the steaming time can be slightly increased, and the green taste of insufficient extraction can be avoided. For example, shallow roasting for 40 to 50 seconds. The medium-shallow baking is 30 / 40 seconds, the medium / deep baking is 20 / 20 / 20 seconds, the deep baking is 10 / 20 seconds.

How much is the amount of steaming suitable?

It is suggested to inject water at about 1:2, that is, 10 grams of powder is injected into 20cc. If more water is dropped into the cup, it means that too much water is injected, which will hinder the discharge of CO2 from the coffee powder.

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