How to judge the quality of coffee beans-How to judge the quality of coffee beans
How to tell whether coffee beans are good or bad?-how to judge coffee beans?
The sour taste of delicious coffee is as refreshing as citrus fruit, without strong sour taste. Bitterness is a soft bitterness. There is no bitterness like cigarette or scorch. Judgment after pawn:
Although the concentration of coffee will change due to different roasting degree and extraction method, the characteristic of delicious coffee is that the coffee liquid extracted by the pawn is clear under the same conditions. The spoon can be clearly seen through the stroke fluid in the picture below, while the one in the stone picture is almost invisible. A cup alone is difficult to tell, but if you compare it, you can see at a glance whether the coffee is delicious or not. even after 30 minutes, the color of a delicious cup of coffee is still clear, and the taste will not change the judgment of grinding:
After fully roasting and extracting water, the coffee can be brewed into delicious coffee, which can be judged by grinding. When grinding, good coffee beans will gently make the sound of salad salad, gently shake the hand, the original taste of coffee is overflowing. Shoddy coffee beans have a creaking sound. There is a feeling of sticking during grinding. Hou's judgment at the time of pawn:
The easiest way to make delicious coffee is to sigh the filter paper. When brewing, there is also a way to judge whether the coffee is delicious, that is, when it is in hot water, the powder does not swell loosely, and when the coffee is fully roasted and extracted water, there will be beautiful and meticulous foam swollen black beans: fermented beans, rotten, blackened coffee beans. Because it is black, it can be distinguished from normal coffee beans at a glance.
Fermented beans: coffee beans that fall from the soil before harvest. The sour smell will have a great impact on the taste of coffee.
Dead beans: also known as unripe beans, or affected by climate and other factors, imperfect development, fried spots will be produced after roasting, so that the coffee has a green taste.
Defective beans: may be stuck during work, or carelessly handled during handling, resulting in incomplete coffee beans.
Borer beans: coffee beans eroded by insects
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Introduction to the producing countries of coffee bean varieties and grinding-research relationship
Coffee bean varieties and grinding relationship producing countries introduce manual brewing and siphon pots. If I say medium grinding fineness, I'm afraid you don't think what I said in detail. But it must depend on the player's habits and production genre. After playing at this level, Uncle Dou won't talk any more. The uniformity of grinding is a relative index. There is no absolute uniform grinding machine in the world, but only coarse and fine particles.
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