How to reduce the bitterness of Yega Xuefei? how to reduce the bitterness of Yega Xuefei?

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In the theory of coffee extraction, the dissolution of coffee juice dissolves more bitterness and astringency in the third stage.

So in theory, the cooking time should not be too long (the complete time should not be more than 3 minutes), it is not easy to "extract" the third stage, in fact, the third stage also has something good, some sweet and BODY aftertaste is also there.

The second is the "improper" in the cooking process, which may lead to premature excessive appearance of lactic acid, chlorogenic acid, caffeine and other substances, resulting in taste bitterness.

This "improper" may be caused by excessive flow of water to stir the coffee powder, too fine grinding, excessive contact with water extraction, or too high temperature (above 96 degrees).

If the ratio of water to flour is between 1:16 and 18, the cooking time is 1-3 minutes (1-4 people), and the water temperature is about 92-94, if there is still bitterness, I dare guess that there are only two reasons.

One is to excessively stir the coffee powder in the water while you are brewing, and the and water will flood the powder in large quantities.

The second is. Try someone else's baked Yejia Xuefei, and it is possible for the baker to bake it bitter!

The links that produce bitterness may be the following:

1-some of the small particles (fine powder) are extracted from beginning to tail.

2-the whole is too thin, so that the water cannot be discharged quickly.

So I will do the following two additional points:

1-shake the V60 filter cup when the water injection reaches about 100g, so that some of the fine powder is attached to the higher position on the filter cup wall

2-during subsequent water injection, if the flow is not very fast, the last bit of water will be discarded together with the filter paper.

Remove bitterness as much as possible, regardless of the final taste at all costs.

Solution: take the 90-second coffee-making timeline as a reference, every 30 seconds as a unit is divided into three segments. The first stage has more flavor, the second stage has more sugars, esters and other elements, and the third stage has more bitter macromolecules.

Just extract the first part.

There are many more specific methods: lower water temperature / remove stew / reduce water stirring / reduce production time / reduce powder-to-water ratio / rough grinding / sieve powder.

● Yega Xuefei Coffee Bean Brand recommendation

Washing and tanning of Qianjie Coffee roasted beans are fully guaranteed in terms of brand and quality. And more importantly, the performance-to-price ratio is extremely high, a pack of half a pound 227 grams, the price is only 80-90 yuan. According to the calculation of 15 grams of powder per cup of coffee, 15 cups of coffee can be made in a bag, which costs only about 5 or 6 yuan per cup, which is recommended by conscience compared to the price sold in cafes for dozens of yuan a cup.

Qianjie coffee: Guangzhou bakery, the store is small but a variety of beans, you can find a variety of unknown beans, but also provide online store services. Https://shop104210103.taobao.com