[hand flushing technique] what is the effect of the stability of water injection on the flavor of coffee?

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The main key action of making coffee by hand is "brewing". Through the unique function of the coffee filter cup, we only need a simple action of water injection to extract the substance from the coffee particles. Of course, there are many ways of water injection of hand-brewed coffee, with different filter cups using the same water injection method, the flavor of coffee after extraction can be guaranteed. However, no matter what kind of water injection technique, the most important thing is the appropriate thickness of water column, stable and uninterrupted water injection, which must be practiced continuously in order to be familiar with it.

Today, the editor is here to talk to you about how important the stability of water injection is.

The stability of water injection is an important factor in the taste of hand-brewed coffee! There are two aspects of the impact:

1. The water absorption of powder layer → flavor is not clear.

If the amount of water injection is suddenly large and small, or the force is suddenly large and small, the speed of water absorption or drainage of the powder layer will be irregular, and the flavor extracted will often have mixed flavors & the main line is unknown.

two。 The correlation of adjustment variables is unknown. → experiment is inconclusive.

If the condition of each water injection is different, adjust other variables such as temperature, degree of grinding, time, method. At the same time, the relationship between variables and flavor can not be associated because of unstable water injection. The more you rush, the more you will wonder whether the idea of adjusting variables is correct.

Therefore, the stability of hand water injection is still more important. The more stable the water injection is, the less likely the above two problems are, and the more obvious the flavor is. But of course, there is no need to practice to a few ml per second so accurate, as long as you can meet the following requirements, basically the above two points are close.

How to practice the stability of hand water injection?

① can clearly make the difference between large and medium flow.

In your heart, you should be clear about the scope of your large, medium and small water flows.

When ② is continuously injected, it can be maintained in the water injection state of your target.

For example: 100ml small water, even if it is within the range of small water from beginning to end.

③ can probably draw concentric circles without too much deviation.

There is still a lot of demand for hand flushing, so try to keep the water injection consistent when making a circle.

Can achieve the above three points, and then assist other variables, such as grinding, filter cup, you can learn water injection softness, penetration. Wait for the advanced requirements.

Usually use the finished powder, you can practice more if you have nothing to do. With reference to the following steps, you can achieve success in a few months:

⭕ fixed-point small flow, fixed-point medium flow, fixed-point large flow

⭕ small circle small flow, small circle flow, small circle large flow

⭕ large circle to the outermost small flow, large circle to the outermost flow, large circle to the outermost large flow

⭕ small flow fast / slow circle, medium flow fast / slow circle, large flow fast / slow circle.

As long as you follow the steps above, the key is to persevere. You can basically get started by practicing a 500ml of water every day for a month or two, and there won't be much problem with the "water injection stability" of hand-brewed coffee in the future.

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