I heard that American coffee tastes better without surface grease? Illustration of the correct practice of American Coffee

The American coffee we usually order in the coffee shop is made of espresso mixed with water. The fat of espresso is naturally included in it. The grease in American coffee will dissipate in about 3-5 minutes, and generally no one will care too much, but Qianjie wants to tell you that it is precisely these small things that do not care that will lead to different results.

What will the grease (Klima) affect the coffee? The golden coffee fat (Klima) can be said to be the soul of Italian coffee, and even the mocha pot next door tries to get some oil to prove that it belongs to the Italian system.

Indeed, oil is the magic mirror of espresso. By observing the oil of espresso, we can see the deficiency of coffee beans, extraction state and so on. When tasting espresso alone, the rich fat also adds a rich taste and aroma to the coffee. When making American coffee, whether it's pouring water into espresso or espresso, there is a thin layer of oil floating on the surface. There's nothing wrong with it, it's just American taste!

Pour water into espresso (left); espresso into water (right)

So if we do one more move-scrape off the grease and make two cups of American coffee in front of the street, one cup remains intact, and the other half scrapes the grease off the surface with a spoon and tastes it. Qianjie found that the American coffee that scraped off the grease was cleaner, the bitterness was less obvious, and the sense of flavor was clearer and more thorough.

This requires an understanding of the structure of grease (Klima). Coffee oil is mainly composed of carbon dioxide and insoluble oil of coffee powder. However, because the pores of the coffee powder bowl are not as fine as filter paper, a small amount of ultra-fine powder will fall into the coffee and hide in the oil during the extraction.

When drinking espresso, I feel that the oil will make the coffee more mellow, this is because it is delicate and dense, and the oil accounts for about 4% of the coffee, the natural effect is obvious. After making American coffee, its scarce oil is not enough at all, and it will not provide obvious help in the taste. On the contrary, it is complicated and sandy because of the fine powder. In addition, the oil itself is bitter, which will also deepen the bitterness. In fact, the effect of scraping off the oil from espresso is better. Friends of Italian coffee machines can try to scrape off the coffee oil from the surface of the extracted espresso and then mix it with water to make American coffee. It tastes as clean as hand-brewed coffee and clearly shows the flavor of coffee beans.

So why doesn't the coffee shop remove the grease? Listening to the front street "blowing" grease has such a great impact on American coffee, some friends will certainly ask, "Why not remove the grease when it is produced?" "there are probably the following reasons. The first point is the production efficiency. A normal cup of American coffee can be completed in about 1 minute. For some coffee shops with large production volume, the scratching of a small spoon will affect the production speed. The second point is that it will make guests think that there is something wrong with the product. think about it carefully. American coffee produced by every coffee shop will bring some oil, and suddenly there is one that does not have grease. Will you immediately think that there is something wrong? as mentioned earlier, oil is a demon mirror. If you search the Internet casually, you will find that the coffee beans are not good, the extraction fails, and the beans stored for a long time will lead to thin oil or no oil. This will lead to unnecessary misunderstandings in a short period of time.

In the final analysis, ten thousand people have ten thousand mouths. So it is right to give the initiative back to the consumer.

Friends who feel interesting can also try to remove the oil when drinking American coffee next time, it will be a different experience!