Coffee bean grade classification introduction of Brazilian coffee raw bean defect classification system

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Introduction to Qianjie-Brazilian Coffee grading system

Grading of Brazilian raw beans

First of all, the coffee beans with parchment are removed by the sheller. Workers then use vibration screening to grade coffee according to the density of raw beans. You know, density is one of the important criteria to measure the quality of coffee. The graded coffee beans will be cleaned again, and the cleaned coffee beans will be sent to the laboratory for final color grading. The chromometer uses a laser to detect defects or stains on the surface of coffee beans. Generally speaking, in Brazil, the level of mechanization of raw bean sorting is very high. Machining can not only avoid unnecessary mistakes, but also help solve the problem of labor shortage caused by high wages.

Brazilian coffee beans are graded mainly according to defect rate, size and cup quality. Let's explain it separately.

Defect rate classification

There are two criteria for defect rate classification in Brazil, one is the traditional COB classification and NY classification. In the Brazilian defect classification method, according to the score of defects contained in 300g raw coffee beans, the following table shows the types of defects and the scoring method, for example, the bug bean defect count is 1 stroke 5 means 5 raw beans count one point (complete defect). The big wood defect count is 5 for a large wood or stone to score 5 (complete defect).

Size to grade

Brazil is graded directly according to the number of items, and the number of items is directly standard on the grade of raw beans. SC 17x18, for example, represents a coffee bean size of 17x18.

Grading by measuring the quality of the cup

Brazil divides coffee into fine cup, fine, good cup, fair cup, poor cup and bad cup according to its quality. FC (Fine Cup) and GC (Good Cup) are more common.

Through the above classification, we can well understand the meaning and rules of the Brazilian coffee raw bean name: Brazil Santos NY.2 FC stands for Brazil Santos New York grading method is 2, flavor quality is Fine Cup.

Knowledge: Brazil is the country with the largest output and exports in the world, accounting for about 1/3 of the world's exports. It is also a big consumer of coffee, and its coffee consumption is second only to the United States, ranking second in the world.

In short: Qianjie is a coffee research hall, happy to share the knowledge about coffee with you, we share unreservedly just to make more friends fall in love with coffee, and there will be three low-discount coffee activities every month. The reason is that Qianjie wants to make more friends drink the best coffee at the lowest price, which has been Qianjie's tenet for 6 years!

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