How coffee beans are graded the grading system of coffee beans

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What is the grading of coffee beans?

Usually when we look at individual coffee, we often see one or two acronyms in the long name, such as PB, AA, G1, etc., which actually represent the grade given to coffee beans by the producing country.

There is no universal coffee bean grading system on this earth.

The purpose of classification is to provide a rough benchmark at the time of transaction. It must be noted that there is no universal coffee bean grading system (draw the bottom line) on this earth. In fact, the name and basis of the classification is decided by each producing country. There are a few points that we must pay special attention to when discussing the classification system:

The standard of grading varies from country to country.

In some countries, the name of the grading system is the same, but the actual definition is not quite the same.

It is difficult to make cross-border comparisons because the systems are different and the characteristics of each country are different.

Grading is only a reference and is not the only or most critical factor affecting flavor.

What is the basis for grading?

The common criteria for grading coffee beans include the size of the bean itself, the shape, color or hardness of the bean, the ratio of defects, altitude, area of production, variety, treatment, feeling and quality of drinking, and so on.

The criterion adopted in most producing areas is the size of the bean itself. Yes, it is based on the size of the particles as the basis for grading. If you grow bigger, you will win. The idea behind is that the higher the altitude, the better the coffee will grow. If the temperature is lower, the fruit will take more time to mature, and the bigger the beans will be, the harder the texture will be and the better the flavor will be. If you eat more, of course you will be fatter.

The particle size of beans may indeed have something to do with its flavor performance. But as written in the biology textbook of junior high school, there is no absolute thing in nature. The grading system is just one of the many links in coffee. Therefore, please do not be bound by these grading systems, but forget that the most important thing is to drink good coffee.

Distinguishing between different bean sizes in advance actually has a great advantage (important). That's convenient for baking beans. If the size difference is too big, it is easy to be heated unevenly when baking, so that there is no way to present the good cup to you and me.

Filtered specifications

The screening work (Screening) is usually carried out with metal screens with different hole sizes. The basic unit is 1gamut 64 inches, which is called "mesh". The screen used to screen coffee beans is in the range of 8muri 20 meshes, that is, 8Compact 64MB 20mm. The smaller the number is, the larger the hole is. Usually less than 14 goals, there is no chance of becoming a boutique. In the process of screening, of course, there will be fish out of the net, and the allowable value of error depends on the standard adopted.

The following is to explain several important country-to-country classification systems. Because it is too complicated, please make sure that when you see the name of the grade, you should also pay attention to where the country of production is, so as to avoid Zhang Guan Li Delo.