The size, specification and grade of coffee beans. Fine coffee.
A, coffee can be divided into washing type and non-washing type according to specifications, and can also be divided into flat beans and round beans.
Washing type: in the sink, after rubbing with water and utensils, the pulp and colloid are removed and dried, which is called washing coffee bean with uniform quality.
Non-washing type: after the sun is naturally dried, the pulp and peel is removed by a sheller, and its quality is unstable.
The fruit of coffee consists of two oval seeds opposite each other. The connecting side of each other is a flat joint, which is called flat bean. But there is also a round seed called a round bean, which tastes no different. Ripe coffee fruit has multiple structures. In the middle are coffee beans, light green seeds.
B, the size of coffee beans
Filter number (meshno.) Coffee bean size
Pingdou 20-19 is very large.
18 big
17 quasi-big
16 ordinary
15 Middle School
14 small
13-12 extra small
The round bean is 13 and 12 years old.
11 quasi-big
10 ordinary
No. 9 Middle School
8 small
C, altitude
According to the elevation of the cultivated land, it can be divided into three, four, seven and other grades. Generally speaking, the quality of highland beans is better than that of lowland beans, and the price is higher because of the increase in freight.
Grade name elevation (m)
1 special grade beans 1.500 ~
2 good beans 1.200 ~ 1.500 ~
3 medium beans 1.000 and 1.200
4 special water washing beans 9001.000
5The beans are washed with good water 760mm 900.
6 special water washing beans 610-760
7 excellent water washed beans ~ 610
D quality
According to the statistical method, the type and quantity of dopants contained in a certain amount of samples are converted into percentage "defect number", and the basis for determining the quality class is that the smaller the defect number is, the higher the quality is.
E, taste
Brazil, Haiti, Kenya, say and other countries all have their own taste testing methods, which can be exported only after taste testing.
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