Coffee review

The significance of uniform extraction of coffee beans is the extraction of coffee uniform?

Published: 2024-11-03 Author: World Gafei
Last Updated: 2024/11/03, The concept of uniform extraction (Even Extraction) and the effect of uniform extraction on the taste of coffee. The real uniform extraction needs to be analyzed from the perspectives of raw beans, roasting, grinding and brewing, and uniform extraction is also the ultimate goal of baristas to make coffee. Coffee is extracted in both directions. If it is too close to one end, the coffee will be over-extracted; near the other end, the coffee will not be extracted.

The concept of even extraction and its effect on coffee taste. Real uniform extraction needs to be analyzed from many angles such as green beans, roasting, grinding and brewing. Uniform extraction is also the ultimate goal of baristas to make coffee.

Coffee extraction works both ways. Too close to one end, coffee will be over-extracted; too close to the other end, coffee will be under-extracted. Our goal is to find the right balance and extract coffee perfectly. But in fact this statement is not accurate.

Each coffee powder varies in size and shape, as well as in how and for how long it comes into contact with water. This means that each cup of coffee is made with a separate microextraction of each coffee grain. Some of the coffee powder is extracted more, others less, and the rest is extracted just right. When we evaluate coffee extraction, we are evaluating the average of all individual microextractions. Thus, each cup of coffee extracted by each individual is more or less uneven.

Therefore, homogeneous extraction can be defined as all or most microextractions are similar in degree and tend to be uniform. If you can do that, coffee will be delicious.

In contrast, heterogeneous extraction means that the difference between the degree of microextraction is too large. This can cause coffee to taste like it was made with two or three different levels of extraction-whether excessive, inadequate or perfect.

Now let's make a cup of French coffee. Please put 30 grams of finely ground coffee powder and 30 grams of coarsely ground coffee powder in the coffee pot. Pour 1 liter of boiling water and soak for 1 minute. After 1 minute you will get coffee with uneven extraction. Half of the coffee powder is fully extracted, while the other half is only the surface coffee powder fully extracted, while the coffee powder buried inside is hardly extracted by hot water. This is a typical case of heterogeneous extraction. The degree of extraction of different fractions of coffee powder varies greatly.

More prominent extraction determines the overall taste of coffee. If the perfect extraction accounts for the majority of micro-extraction, the thicker the part within the perfect extraction range, the heavier the taste, and the more prominent the taste characteristics. The perfect extraction in the ideal coffee should be the most prominent. This coffee is evenly extracted coffee and tastes excellent.

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