How to adjust the thickness of hand-operated bean grinder-hario bean grinder thickness adjustment
How to adjust the thickness of the hand bean grinder-hario bean mill
Beautiful appearance, mostly made of wood, glass and some iron, whether it is used to grind coffee beans or put at home, is a good choice.
The price is cheap, usually in dozens of yuan, which is acceptable to most friends.
The grinding degree is adjustable, and the nut in the middle of the hand bean grinder can usually be adjusted to adjust the size of different coffee powder, which is a very practical function for friends who have several different coffee making utensils at home.
It is not easy to produce fine powder. if there are more fine powders in the coffee powder, the taste of the coffee will not be uniform. It is like you are stir-frying a dish. The dishes are big and small, the small ones are ripe, and the big ones are raw.
The change of humidity is also one of the factors affecting the degree of grinding. When the humidity is relatively high, the wet speed of the ground coffee powder is very fast, and there is already a slight humidity when filling the powder and cloth powder. If a fine grinding degree is used, the coffee flavor components have already reacted with the air with high humidity and become messy and impure, while the coffee powder is easier to be compacted and the extraction process is longer, which makes it easier to extract the bad taste and make the overall coffee taste muddy. Therefore, in the case of relatively high humidity, it is not suitable for a finer degree of grinding, it will be better to use a slightly thicker degree of grinding. On the other hand, in the case of relatively low humidity, coffee powder is ground out after contact with the air, the speed of oxidation reaction will also be accelerated, if the coarse grinding degree is used, then the coffee powder oxidation and flavor composition changes together make the extracted coffee taste will be less, lack of depth and mellow feeling, so the degree of grinding should be adjusted appropriately. Of course, after adjusting the degree of grinding, it is necessary to adjust the strength of pressing powder accordingly.
Humidity factors play a role not only in sunny and rainy days, but also at different times of the day. Generally speaking, the humidity in the morning and evening is higher than that at noon, so according to the influence of humidity factors, the grinding degree should be thickened in the morning and evening, and finer at noon.
There are many other factors that affect the degree of grinding, including the roasting degree of coffee beans (although coffee beans used by Espresso should use a deeper roasting degree, but sometimes different roasting degrees may be used to roast formula beans for richer taste), blended recipes, and so on. All of the above are the most common and can be mastered by baristas. The previous sections are all about the adjustment of the basic factors in the production process in order to meet that taste standard on the premise of understanding the good taste of Espresso (see the taste of Espresso). There are many places in the world of Espresso that we don't fully understand, and we would like to explore this wonderful world of coffee with you.
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