[coffee bean mill thickness] current grinding and grinding machine\ importance of bean mill
Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)
How to judge and set the grinding degree of espresso
In fact, no matter what kind of grinder is used
Will also lie in the heat caused by friction in the operation.
It has been mentioned before that excellent substances are mostly highly volatile.
Therefore, at the time of grinding, heat is produced.
At the same time, it also increases the speed of evaporation.
This causes the mellow smell to be lost in the air.
After caffeine grinding
The cell wall will disintegrate completely at the same time.
At this time it becomes the state of coffee powder.
It will increase the contact area between coffee powder and air.
As a result, all the lines of defense to protect the freshness of selected coffee have been completely removed.
At the same time, the rate of oxidation and deterioration will also increase.
In about 30 seconds to 2 minutes.
The coffee will start to lose its flavor.
Therefore, it is generally recommended to buy coffee beans as much as possible.
And if so, those who attach importance to grinding
It will also try to take the action of grinding and sealing immediately.
In Europe and the United States or more advanced civilization, pay more attention to coffee lovers
Generally speaking, they have their own grinder.
So as to make it easier to grind before brewing.
Before the invention of the grinder
That is to say, humans first used pestle to grind coffee.
Use stone pestles and bowls as grinding tools.
Reason according to logic; pestle is based on the method of impact.
So that the coffee beans can crack naturally.
It should be the least likely to destroy the cell wall.
It should also be the best way to retain good materials.
However, if we want to use the pestle method to do grinding in our life now,
In terms of manpower and time, it is almost impossible!
So a good grinder is particularly important in the coffee market!
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