How to make espresso? how to make espresso?

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The origin of the Espresso coffee machine is that in 1901, Luigi Bezzera, the boss of an Italian manufacturing company, thought that the coffee time of his employees was too long, and he wanted to shorten the time and improve the productivity of employees by quickly brewing coffee. He invented a machine that uses high pressure to extract coffee quickly, and also applied for a patent. The machine is called Tipo Gigante, which does speed up the time of brewing coffee, but it is a bitter cup of coffee. It was not taken seriously at this time. In 1905, Desiderio Pavoni bought the patent of Luigi Bezzera. He constantly tested and found that the bitter taste was due to the high water temperature. After many experiments with different water temperature and pressure, it was found that the best results could be obtained by matching 90.56 degrees with 8-9 Bar pressure.

The unit of Espresso is represented by Shot, and 1 Shot is about 30ml. Does the word "espresso" mean an espresso? Using finely ground coffee powder to extract coffee through high-pressure hot water, there is obviously a layer of Crema (oil) that shows a slightly gelatinous and thick feeling through the oil in emulsified beans. There is not a bean name in the world (I used to think it is coffee made from beans called espresso), and there is no prescribed roasting degree, and the proportion of mixed beans to the baking degree is very wide. In this way, each family's Espresso will have its own unique flavor, and even in different seasons, different proportions should be different each time.

Espresso became popular around the 1990s, mainly because the Seattle coffee chain began to use espresso to make various coffee drinks.

There are two kinds of differences in Espresso, the quantity varies with the degree of extraction, the content of single, double, and triple= 1, 2, 3 oz, about 30, 60, 90ml, coffee powder will also be multiplied to 7-8g, 14-16g and 21-24g, respectively. In the past, the standard for the old drawbar machine was single shot, but now the standard for coffee machines using electric valves is each time.

Espresso, also known as Ristretto, Normale and Lungo, changes the degree of extraction by changing the degree of grinding and extraction time.

What does the noun Espresso mean? There is a saying that the flavor is squeezed out of the coffee, and there is also a saying that you can quickly make a cup of coffee. When it comes to making a cup of coffee quickly, the machine made a cup of coffee in 1905 for about 45 seconds. Today's Espresso takes about 20 to 30 seconds.