How to adjust the thickness of the hand bean grinder? what do you think of the rough dial of the bean grinder

How to adjust the thickness of the hand bean grinder? what do you think of the rough dial of the bean grinder

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.

After grinding, the cell wall of coffee beans will completely disintegrate, which means that the area of contact with air will increase a lot, all lines of defense to protect freshness will be completely removed, and the rate of oxidation and deterioration will become faster, which will make the coffee lose its flavor within 30 seconds to 2 minutes. Therefore, the author strongly suggests: do not buy coffee powder, it is best to buy coffee beans, and grinding before drinking, grinding should be brewed quickly.

Before the invention of the bean grinder, people used stone pestles and bowls to grind coffee beans. A doctor abroad once experimented with this ancient tool and compared it with a modern bean grinder. It is said that the coffee powder made from pestles and stone bowls is the most mellow. According to logical reasoning, the pestle cracked the coffee beans naturally by impact, which should be the least likely to damage the cell wall and best retain the excellent substances of coffee. However, in modern life, it is almost impossible for people to use pestles and stone bowls to grind coffee, so it is particularly important to choose a good bean grinder.

* the importance of uniform grinding

Once the coffee beans are ground too fine and the water comes into contact with the surface of the coffee powder too much, too many unnecessary impurities will be extracted, even bitter beans will come out; but if the coffee is ground too thick, the delicacy will still be hidden deep inside, where the hot water can not be touched. The coffee brewed does not have enough aroma.

When brewing Italian espresso, we must make efforts to fill the coffee powder to make it resistant to high-pressure hot water in order to really extract the essence of coffee. Therefore, it is more sensitive to the degree of grinding, the more uniform grinding, the more compact the coffee powder, and less space, can produce balanced resistance to water, so that a cup of Espresso can be extracted successfully.