The coffee is cloudy. What's going on?

At present, among the dozens of imported coffee beans, there are only dozens of groups with stable and popular quality, while different producing areas, natural environments, cultivation conditions, classification standards, processing methods and techniques, circulation routes and so on, all kinds of coffee beans have different personalities, natural domination, man-made methods, and commodity structure. So that coffee beans have unlimited taste personality-sweet, sour, bitter, fragrance, strength and so on. Therefore, the mixed coffee can restrain and adjust the quality change of coffee beans and correct its instability to stability. Mixing is-using the personality of all kinds of coffee beans, using the personality of coffee beans created naturally, and then using personal wisdom to blend into a better taste, and at the same time "emphasizing the personalized taste", that is, to emphasize the personality of certain coffee beans, add other coffee beans, let him appear in the conditioning (seasoning) set-off effect, give people a special example of different impression-the taste of iced coffee The result is that it belongs to this type. Another purpose of mixing is to "adjust the grade". To put it simply, it is to fully consume the second-and third-grade products on hand and use the first-grade products to make up for the inferior parts. it is mostly used to adjust the price, but if you first consider adjusting the price and ignore the most important quality, you cannot expect the ultimate goal of pursuing the original taste of coffee. In other words, with the goal of adding second-grade or cheap coffee beans and creating the necessary means for taste, mixing posts and homework has its significance. Some coffee is drunk as pure coffee, which can fully satisfy the unique flavor of this kind of coffee. This kind of coffee can be brewed in the way of pure coffee, but except for some fixed varieties, most of the coffee beans are not strong enough or even have no special flavor. It makes people feel that they lack depth, or that a certain flavor is too strong to be satisfactory. In order to make up for this deficiency, it is best to mix several kinds of coffee beans to create a deep and balanced flavor, which is called mixing. Mixing does not mean that several kinds of coffee beans are casually mixed together, nor does it mean that the quality of the coffee beans mixed together is good, which means that the taste will be good. The fun of mixing is to create the expected flavor. The taste of mixing must not be generated by chance or luck, that is, it can be obtained through constant trial and error through experience and intuition. Of course, you will "find" your favorite taste from the mixture, which is also the pleasure of drinking coffee.