Why do hand flushing must be steamed? Can I drink steamed water with dull hands? The meaning of steaming is...

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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

Not stuffy steaming? Stop it!

No matter how you do it, you have to steam it!

But steaming so many times

Do you really know what he means?

Hand-brewed coffee is a process of flavor extraction and filtration at the same time, and the extraction takes place at the center of pouring water. The more water, the more extraction. Newly roasted coffee beans will produce more carbon dioxide, these gases are not conducive to the full contact between water and coffee powder to complete the extraction, so it is necessary to stew first to avoid uneven extraction of coffee powder and affect the efficiency.

What benefits will steaming bring to extracted coffee?

Let's first observe the expansion of the following steaming, in fact, it can also help us to detect whether the coffee beans are fresh or not!

More importantly, the coffee particles after the coffee powder is discharged during steaming can be discharged and absorbed more evenly, which can make the coffee extraction more uniform.

During steaming, the air between the coffee powder particles expands and releases a large amount of carbon dioxide, while a short gap layer appears between the coffee powder particles, which can provide more space for the hot water to pass through the powder layer during formal water injection.

And if the initial step of hand flushing is less steaming, the extraction time will be longer, which may lead to excessive extraction, because the extraction time is longer, the dissolved substance is more, the taste may be more sour and irritating, or the mouth may be full of smells.

How to control the steaming process?

Before steaming with water, make sure the coffee powder is as horizontal as possible in the filter screen or filter paper. We should pay attention to the control of the flow rate at this time, the force of water injection is not too large, try to be gentle.

The amount of water used in steaming should be 10% of the total water. For 240 milliliters of coffee, the amount of water needed for steaming is about 24 milliliters. The amount of extract flowing is as little as possible; when there is too much extract in the pot, the amount of water injected should be reduced, or attention should be paid to the degree of grinding.

Steaming is about 25 to 40 seconds (depending on the degree of grinding and baking). When the expansion of the coffee powder surface is over and the surface is about to shrink, it represents the completion of steaming.

In an ideal steaming process, the coffee powder will slowly expand in the presence of hot water, as if the coffee powder keeps pushing the hot water to the top. And the best time for the end of steaming, when the surface is about to shrink, is a good time to start the first water injection.

For hand-made coffee

Every step will change the original flavor.

If there is any confusion, we will correct it from the beginning.

Friends who want to make just the right drink.

Combine the previous knowledge points to brew it together!

Content transferred from: CSCA boutique coffee college

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