Italian Coffee
by Junzhi
Favorite
Difficulty
Easy
Time
5m
Serving
2
The roasted coffee beans are ground into coffee powder. Then rinse the coffee powder with hot water and pass through the filter paper to extract the soluble substances in the coffee powder. This is a common method for general drip coffee machines. We only need to buy a packet of ground coffee powder, a packet of coffee filter paper can solve the problem. After the hot water has extracted most of the soluble substances in the coffee powder, the remaining coffee grounds can be thrown away (those who can spend their days can put them in the refrigerator as a deodorant). With this method, 6-7 grams of coffee powder, a cup of coffee is about 150ML.
In addition, there is a completely different way to get a cup of coffee, namely espresso. Espresso originated in Italy, so it is usually called espresso.
How is espresso different from regular coffee? The key difference is pressure. The aforementioned extraction of ordinary coffee does not require pressurization, while the espresso is applied with 1.5-10 atmospheres during the extraction process. Because of the air pressure, the soluble substances in the coffee powder can be extracted with a small amount of water in a short period of time. The volume of 1 cup of coffee obtained in this way is often less than 30ML, which is very rich.
However, the reason why espresso is admired is not only because of its concentration. The composition of coffee beans is very complicated. Because of the different extraction conditions, coffee extracted with high pressure in a short period of time can avoid some unpleasant components in the coffee beans from being extracted. Moreover, espresso coffee generally requires the use of dark roasted coffee beans. The caffeine content of coffee beans is much lower. Therefore, adding water to a cup of 30ML of espresso coffee to 150ML is not equivalent to a cup of 150ML of ordinary coffee.
Espresso coffee is very suitable for desserts because of its concentration. Because when making desserts. Especially for those desserts that do not require too much moisture, we consider how to obtain a stronger coffee flavor while adding as little moisture as possible. Using instant coffee powder can solve this problem because it contains no moisture at all. For some desserts with a little moisture, we can consider using espresso instead of the moisture. After all, espresso coffee is used in desserts to get a better taste than instant coffee powder. As for coffee flavor, we basically don't consider it based on the principle of home roasting as the less additives are used.
The problem with espresso is that it must use special equipment. In the coffee shop, we can drink espresso made by a professional espresso machine. At home, you can only use a domestic espresso machine. The current home coffee machine can create enough atmospheric pressure to extract coffee, but after all, it is not as easy to use as professional machines, and sometimes the effect is only barely satisfactory.
Generally speaking, if 6-7 grams of coffee powder, 30ML of coffee is extracted, it is called standard espresso. If it is less than 30ML, it is called espresso or espresso. (However, it is difficult for home coffee machines to do this). Add sugar to espresso or espresso and drink it directly. For most people in China, this is a bit thicker. Then, add milk, or chocolate sauce, or whipped cream, you can make different varieties and flavors of coffee.
In addition, there is a completely different way to get a cup of coffee, namely espresso. Espresso originated in Italy, so it is usually called espresso.
How is espresso different from regular coffee? The key difference is pressure. The aforementioned extraction of ordinary coffee does not require pressurization, while the espresso is applied with 1.5-10 atmospheres during the extraction process. Because of the air pressure, the soluble substances in the coffee powder can be extracted with a small amount of water in a short period of time. The volume of 1 cup of coffee obtained in this way is often less than 30ML, which is very rich.
However, the reason why espresso is admired is not only because of its concentration. The composition of coffee beans is very complicated. Because of the different extraction conditions, coffee extracted with high pressure in a short period of time can avoid some unpleasant components in the coffee beans from being extracted. Moreover, espresso coffee generally requires the use of dark roasted coffee beans. The caffeine content of coffee beans is much lower. Therefore, adding water to a cup of 30ML of espresso coffee to 150ML is not equivalent to a cup of 150ML of ordinary coffee.
Espresso coffee is very suitable for desserts because of its concentration. Because when making desserts. Especially for those desserts that do not require too much moisture, we consider how to obtain a stronger coffee flavor while adding as little moisture as possible. Using instant coffee powder can solve this problem because it contains no moisture at all. For some desserts with a little moisture, we can consider using espresso instead of the moisture. After all, espresso coffee is used in desserts to get a better taste than instant coffee powder. As for coffee flavor, we basically don't consider it based on the principle of home roasting as the less additives are used.
The problem with espresso is that it must use special equipment. In the coffee shop, we can drink espresso made by a professional espresso machine. At home, you can only use a domestic espresso machine. The current home coffee machine can create enough atmospheric pressure to extract coffee, but after all, it is not as easy to use as professional machines, and sometimes the effect is only barely satisfactory.
Generally speaking, if 6-7 grams of coffee powder, 30ML of coffee is extracted, it is called standard espresso. If it is less than 30ML, it is called espresso or espresso. (However, it is difficult for home coffee machines to do this). Add sugar to espresso or espresso and drink it directly. For most people in China, this is a bit thicker. Then, add milk, or chocolate sauce, or whipped cream, you can make different varieties and flavors of coffee.
