What is the effect of coffee brewing and water injection on coffee extraction?

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soft water injection

The relative degree of irritation of water to coffee powder also affects the release of coffee ingredients

Gentle coffee powder, gentle coffee.

Stimulate coffee powder and get a cup of stimulating coffee

Gentle water flow injection reduces the impact of water flow on the powder bed. To control the level of water in the filter cup, slowly fill the water at a lower level after steaming, and then let the coffee grounds in the filter cup soak as if they were soaking. This slows down the pace of extraction and tends to produce soft, solid coffee.

broken water

After stewing, inject a section of water into three sections

Personal experience:

Look at altitude: relatively low altitude, beans loose texture, not resistant to extraction, usually this kind of beans can not stop water, such as Brazil, Montana; high altitude beans hard texture, resistant to extraction, usually use water, such as Panama, Costa Rica, Yega Shefi, Kenya.

Look at the baking degree: use no water for deep baking degree, light baking degree, or medium light, use water.

See date: Usually use water cut off during bean cultivation period