Can you add milk to American black coffee? what is the difference between American coffee beans and Italian coffee?

What is the right way to drink American coffee? The barista in the front street will occasionally be asked such tricky questions by some guests. At this time, the front street will tell him that his heart tastes good. In fact, Qianjie knew that he was asking Qianjie if there was a set of norms and standards for drinking coffee, but Qianjie thought that everything could not be confined to appearances and forms, and that if he pursued it too much, the loss would outweigh the gain. Therefore, drinking coffee in the front street is a casual thing. As for why some guests ask such questions, a large part of it is due to the unfamiliarity and strangeness of coffee. Therefore, Qianjie will come to popularize the knowledge about American coffee for everyone today.

The rise of American coffee began with World War II, when American soldiers stationed in Italy did not like the strong flavor of Italian espresso (espresso). So to replicate the trickle-filter coffee they drank in the United States, soldiers added water to the iconic Italian espresso. And because this way of drinking was not popular in Europe at that time, traditional Europeans disdained it, so they named this coffee American coffee.

Although there are two ways to make American coffee, most cafes around the world use espresso mixed with water, while traditional American coffee is only used in the office or at home. The structure of American coffee is quite simple and is only made up of water and espresso. The ratio is usually between 1:4 and 1:8. But even American coffee mixed with water can only drink the flavor of espresso liquid itself. in the past, espresso flavor choices were not as many as they are now, and the taste is comfortable and excellent. In order to solve the problem that coffee is difficult to import, lattes, cappuccinos and other milk coffee have been invented and become more and more popular. And because they are all based on espresso, these coffee drinks are now collectively called espresso. So which is better, espresso or American coffee? I can't tell you this question in front of the street.

If you regard American coffee as traditional drip coffee and espresso as traditional espresso, American coffee must be easier to enter than Italian coffee, but as to which one tastes better, Qianjie thinks it depends on the coffee beans used at this time. Coffee beans are the most important factor in determining whether this cup of coffee tastes good or not. For example, there is no comparison between the commercial blending of coffee beans in Qianjie and the matching of warm sun. Not simply because of the huge difference in price, but because the commercial blended coffee beans are used in front street to supply coffee beans to large chain commercial cafes. For example, in pursuit of the rich crema in espresso, Qianjie specially added 10% Robusta to increase its alcohol thickness. And warm Sun blending is the most proud Italian coffee bean in Qianjie Street stores have been using this Italian coffee bean for three years in a row. The unique flavor is the evaluation of all the guests on this kind of coffee beans, and even some guests will come for a sip of concentrated coffee beans. The palate is thick but lively, with strong aromas of wine. The fermented aroma comes from the whisky barrel treatment of sherry coffee beans and the sun from red cherries. The sweetness is outstanding and there is a slight soft acidity.

As mentioned earlier, the taste of American coffee has a lot to do with the coffee beans used. in fact, Qianjie will also use high-quality coffee beans if it does not consider the memory of the product. This espresso bean is a traditional blend of Brazilian and Colombian beans. The nut flavor is prominent and smooth on the palate with a hint of chocolate, complementing the dense hot milk.

Now you know, the soul of a coffee drink is in a small espresso. Generally speaking, Qianjie uses 20 grams of coffee powder to extract 36 grams of coffee liquid. However, the gouache ratio of American coffee varies from cafe to cafe, which should be adjusted according to coffee beans, coffee machine, bean grinder and other factors, and finally make the final choice according to the barista's senses.

So how is espresso extracted? This is about designing the working principle of espresso. Half of most coffee machines go through four steps in turning coffee powder into coffee liquid: water source, pump, boiler and brewing head. Each coffee machine bean needs water to work, for the espresso machine, who has two sources: the water tank to drink a stable water supply pipe connection. Usually, the source of water depends on how the machine is used. For Qianjie, because you need to produce good coffee every day, a stable water supply is very important. Pump is the core of espresso. How does water have the power to pass through a dense layer of coffee powder? The secret is stress. Some of the earliest espresso machines used large leveraged pistons, and baristas had to manually pull the lever to write water through the coffee. But most modern espresso machines have given up this kind of manual labor and replaced it with electric pumps, vibrating pumps or vibrating pumps, which are a small electromagnetic force. The piston connected to the magnet is arranged in the metal coil. The current flows through the coil, causing the magnet to quickly move the piston back and forth, pushing water through the machine. Your average vibrating pump clock frequency is 60 times per second. Unlike the vibrating pump, the rotary pump is mechanical.

This is also a complex mechanism. The motor rotates a disc, which is offset in a large circular chamber. The rotating disc is divided into multiple parts by the vein. When the intervertebral disc rotates, the vein presses against the wall of the external cavity, reducing the size of the cross section, resulting in pressure. Water enters during the large phase and is pushed out as the cross section shrinks. The boiler is the place where the machine is heated, and it can keep the pump pressurizing the water continuously. Not only that, the boiler controls the brewing temperature of the coffee machine. At present, there is a difference between double boiler and single boiler in the market.

Learn about the history of perfect coffee and how the espresso machine works. Are you angry? why is the taste of American coffee different? In fact, the front street also said that this is because the coffee beans are different. The most important feature of blending coffee beans is to try to keep the taste of the whole coffee balanced. However, with the progress and development of the market, there are also some SOE coffee, these coffee is the use of single-producing area coffee beans. At the same time, the roasting degree of coffee has also changed. People's requirements for espresso must have a heavy crema, and more people want to drink beans from coffee. Therefore, they will also use shallow roasted coffee with outstanding floral flavor as Italian coffee. At present, Qianjie has not been tested well, so it is impossible to tell you whether it tastes good or not.

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