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What do you need to pay attention to in the process of Japanese volcanic flushing?

Published: 2024-09-17 Author: World Gafei
Last Updated: 2024/09/17, Professional coffee knowledge exchange more coffee bean information please pay attention to the coffee workshop (Wechat official account cafe_style) volcanic flushing method originated in Japan, more suitable for deep-roasted coffee beans. It uses the carbon dioxide in beans, and after many times of steaming, the coffee powder bulges like a volcanic eruption, so deep-baked beans are more suitable because they contain more carbon dioxide.

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

The method of volcanic flushing comes from Japan and is more suitable for deep-roasted coffee beans. It uses the carbon dioxide in beans, and after many times of steaming, the coffee powder bulges like a volcanic eruption, so deep-baked beans are more suitable because they contain more carbon dioxide.

Do you need to pay attention to some Japanese-style volcanic flushing in the process of cooking?

To make the same visual effect as a volcano erupting, it originated in Japan and belongs to the Japanese style.

In this way, it takes a large amount of powder to achieve the desired results. the repeated steaming process in the first stage can be as long as three minutes and is over-extracted. the latter section will control and increase the flow of water, resulting in insufficient extraction to adjust the coffee liquid over-extracted in the front section. Shake the kettle after the extraction, so that the front and rear coffee liquid is fully fused.

The advantage of this approach is that it is mellow and sweet. But it should be noted that when you try volcanic flushing with deep spaghetti beans, the taste is bitter and astringent, and lasts for a long time, with only a little taste.

Prerequisites 1. The beans are fresh. The current is steady and fine. The requirement of steaming is high.

Advantages: it can flush out the mellow and strong taste of flannel filter cloth.

Disadvantages: high requirements for controlling water flow, easy to extract, biased flavor

The conditions of extraction:

Amount of beans: 20g

Water temperature: 88

Extraction amount: 300ml

Extraction time: 2 and a half minutes +

1. The key point is in this part of steaming, the amount of steaming water is appropriate, make sure that the amount of water injected is completely soaked in coffee powder, and keep only injecting water at the central point from beginning to end, not up and down. The key to determining coffee is whether the first drop of coffee can be extracted around 1min. The most important part of this method is steaming.

two。 Observe that when the state of the powder surface is bleak, start the second water injection, the water injection here still has to be careful, the last water injection is completed.

In order to achieve volcanic vision, deep-baked beans must be chosen in beans, shallow baked beans are difficult to achieve this visual effect.

Extraction condition

The thickness of alcohol produced by volcanic brewing method is higher than that of common 1-stage flow and 3-stage flow. Shaker is suitable for deep baking beans, and shallow baking extraction is more suitable for direct drinking. The shallow part of the steaming and water flow is much more difficult than deep baking, but the steaming is successful, and then the 1min water injection is stable, and then the water injection can be much bolder.

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