Introduction to the characteristics of varieties produced by description and treatment of Grade Flavor of washed Coffee beans

Grade of washed coffee beans

The process of screening is to put the coffee beans on the Internet and shake them back and forth by machine or manually, and the beans the size of a mesh will fall and be removed, and the beans that have been rejected will be screened through a smaller screen. After such layers of screening, the grade of coffee beans was compiled.

After classification, it is divided into AA, A, B, C and PB. AA is the highest, and A, B and C decrease successively. Those below grade C are usually used as feed or fertilizer. In addition, round beans (Pea-Berry) have a special flavor, and beans are already relatively small, so they have their own grade, that is, PB, which is usually more expensive. In addition, we can also see X, Y1, Y2 and T grades, these coffee beans of different sizes, and a lot of defective beans, is quite a poor product, not worth a try.

This classification is generally used in Kenya, New Guinea, Puerto Rico, Zimbabwe, Tanzania and Island Ganda and other places, only above the AA grade is eligible for selection of coffee. In addition, many Brazilian coffee also use this classification, which only directly means 19, 18, 17. Instead of AA, A, B, C classification.

two。 Graded by the number of points of defective beans (Imperfection):

This is the earliest method of classification and is still being used in many parts of Brazil. The method of identification is to randomly take 300 grams of specimens and put them on black paper, because black paper can best avoid reflection. Then, the professional appraiser carefully inspects the defective beans in the sample and accumulates different scores according to the types of defective beans, such as 1 black bean, 1 pebble, 5 big pebble, 1 broken bean, 1 pest bean, 1 sour bean, 1 big dried peel, 1 middle dried peel and 1 small dried peel. 5 unshelled beans count as 1 point, and 3 shell beans count as 1 point. After the identification is completed, the evaluation level is NY2~NY8 according to the cumulative defect score, and there is no NY1. If you want to buy first-class (NY1) Brazilian beans, it will make a joke. By the same token, only the highest grade is eligible for selection of coffee.

This classification method is also used for coffee beans in Indonesia, and the identification method is roughly the same as the calculation of defect scores. However, the final grading method is different, Indonesian beans are mainly divided into 6 grades, and Gr1~Gr6. I have tried Gr1's Sumatran manning coffee, which has excellent consistency and mellowness. no wonder it was the highest in the coffee world before the emergence of Jamaican Blue Mountain Coffee.

Ethiopia also uses this method, and the highest grades of washed beans are Gr1 and Gr2. The highest grade of sun-dried beans is Gr3.