Coffee grinding tips
The following is mainly about the rules and methods of coffee grinding when making Italian espresso, but its main principle is roughly the same as other coffee making methods, which can be used as an important reference.
The right way to grind coffee is essential for making espresso. It can be said to be the most important part of the Italian espresso production system. Sometimes people pay too much attention to the manipulation of coffee production and the way they dispose of milk foam, while ignoring the importance of coffee grinding.
Coffee is a very sensitive ingredient, which means that coffee is extremely sensitive to changes in the external environment. That's why coffee goes bad so fast. Many successful Italian espresso shops grind as they drink, grinding only the coffee powder used to make one cup of coffee at a time. From the point of view of pursuing the perfect quality of coffee, grinding with drinking can ensure the taste, extraction, aroma and appearance of coffee to the greatest extent. But it is not easy to achieve perfection, people must grasp the accuracy and foolproof of every link. We have mentioned that coffee will deteriorate quickly after grinding, and the air will take away the aroma and the most essential oil of the coffee, leaving only sour and astringent taste. If the essence disappears, it won't help you to use even the most expensive Arabica coffee
In real life, most cafes use quantitative grinders when they are busy. Each commercial coffee grinder is equipped with a quantifier. It ensures that the operation of the grinder is suspended when the coffee powder reaches 75% of the toner capacity. The barista pulls the lever when making each cup of coffee, and the dispenser releases a certain amount of coffee powder (the amount is preset in advance). It is not recommended to use this kind of grinder at home. Since the amount of coffee you make each time is very limited, you'd better grind a certain amount of coffee powder (Grinding on Demand, referred to as GOD) according to your own needs at home, so as to keep the coffee fresh at all times.
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