Coffee brewing method-the cause and influence of uneven flow velocity of double Espresso
When we use a double bowl of powder to make coffee on a semi-automatic coffee machine, there is occasionally a slow flow of coffee, coming out first and then out, with more coffee on one side and less coffee on the other at the same time. In today's article, Chen Lei will discuss with his friends: the flow rate of double Espresso is uneven.
First, there are two common reasons for the uneven flow rate of double Espresso, namely:
1. Uneven powder pressing: if the coffee powder is pressed unevenly, it will lead to different thickness of the coffee pressed powder, that is, the coffee pressed powder will have more than one side and less than the other. When the water passes through the coffee pressed powder, where the pressed powder is thin, the coffee will flow out first, and the speed will be faster than the thick place.
2. The coffee machine itself is uneven: although this is a small problem, many cafes do not pay attention to it. The four feet under the coffee machine can be adjusted. It is recommended to buy a horizontal ruler to adjust the balance of the coffee machine. If the bar where the coffee machine is located is high on one side and low on the other, then the uneven flow rate of the double Espreso will be normal.
Second, the influence of uneven flow rate on the taste of coffee.
The most direct effect of uneven coffee flow rate on coffee is that the taste of the two cups of coffee is inconsistent, in addition, it will also lead to different amounts of coffee. The cup of coffee with coffee content is stronger, while the cup with less coffee is relatively light.
If you use these two cups of coffee to make cabs, you may find that the extra cup of coffee tastes too strong and bitter, while the cup with less coffee feels like a latte.
If it is only because of the uneven flow rate of the coffee machine itself, the taste of the coffee should be acceptable, and if it is because of the uneven powder, the taste of the coffee may not be so satisfactory.
Source: Zhiyu Coffee
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