What are the classification standards of coffee beans G1, G2, G3, G4, AA, PB, SHB?

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Coffee beans are graded as G1-G9 according to physical characteristics and cup test basic quality. The cup test of G1-G3 is carried out, and the attribute is determined in more detail according to the SCAA standard.

Among them, G1 and G2 with no less than 85 points were rated as Q1, coffee beans were rated as Q2 by G1, G2 and G3 with scores of 80-85, all G1, G2 and G3 with scores below 80 were classified as G3, Q1 and Q2 were classified as Specialty Grade exports, and G4-G9 was classified as CommercialGrade export together with G3.

Jamaica:

According to the particle size and the ratio of defects.

Grade

Size standard (defect rate less than 3%)

NO.1

More than 17 mesh

NO.2

More than 16 mesh

NO.3

More than 15 mesh

PB

More than 14 mesh

Costa Rica, Panama, Guatemala:

According to the altitude

Grade

Altitude

SHB (Strictly Hard Bean) extremely hard bean

≥ 1400m

HB (Hard Bean) hard bean

1200-1400m

SH (Semi Hard Bean) slightly hard beans

1100-1200m

EPW (Extra Prime Washed) excellent water-washed beans

900-1100m

PW (Prime Washed) high quality water washed beans

800-900m

EGW (Extra Good Washed) washed beans with extra good water

600-800m

GW (Good Washed) good quality water washed beans

≤ 600m

Mexico:

According to the growth altitude, the highest one is SHG (Strictly High Grown).

Dominica:

According to the particle size grading system, the particle size of AAA grade is the largest (No. 19 screen), followed by AA grade (17pm 18 screen) and A grade (No. 16 screen).

Colombia:

Graded according to particle size.

Grade

Size standard

Supreme Screen 18 +

More than 95% 18 mesh

Supreme

More than 95% 17 mesh

Excelso Extra

More than 95% 16 mesh

Excelso EP

14-16 mesh

U.G.Q

More than 14 mesh

El Salvador, Honduras:

Classification according to growth altitude

Grade

Altitude (El Salvador)

Altitude (Honduras)

SHB (Strictly High Grown) extremely high altitude growth

≥ 1200m

≥ 1221m

HG (High Grown) highland growth

900-1200m

915-1220m

S (Standard) standard

--

610-915m

CS (Central Standard) Central Standard

500-900m

--

Brazil:

Grade according to the proportion of defects and the size of the screen.

Types

Quality

NY.2

17-18 mesh FC

NY.2/3

14-16 mesh FC

NY.3/4

DD Quality

NY.4/5

14-16 mesh GC

Ethiopia:

Ethiopia's coffee export grade is set by the CLU Department (Cupping and Liquoring Unit) of the Ministry of Agriculture, which classifies raw coffee beans according to the number of defective beans in 300g.

Grade

Number of defective beans (per 300g)

Grade 1

≤ 3

Grade 2

4-12

Grade 3

13-25

Grade 4

26-45

Grade 5

46-90

General washing treatment is G1-G2, due to the technical problems of sun treatment at that time, the number of defects of raw sun beans is relatively large, generally G3-G5, with the improvement of sun treatment technology, now the sun beans can also reach the G1-G2 level.

Yemen:

The grades of coffee beans that are not explicitly exported are exported by product name.

Kenya, Rwanda:

It is classified by particle size, and then the value is defined by cup measurement. The largest particles are Grade E (beans), followed by AA (particles left on the 7.2mm sieve), A (particles left on the 6.8mm sieve), B (particles left on the 6.2mm sieve), C (smaller than B particles), PB (oval granulated beans), and too light and small TT and T beans, An and B will be mixed together for export, called AB.

The cup test defines the value, from good to bad as Fine, Fair to Good, Fair Average Quality (FAQ), Fair, Common Plain Liquors. The boutique will be crowned with the label of AA TOP and AB TOP

Tanzania:

Similar to the Kenyan classification, PB stands for oval beans, AAA is the largest, AA is the second largest, followed by An and C beans.

Blondie:

According to the particle size classification, the most advanced water washing type will be crowned with the brand Ngoma, the particle size needs to be on the 7.1mm screen; the washing AA grade is also stopped on the 7.1mm screen, A class 6.5mm grade B 5.5mm … The highest grade of semi-washing is AB, including parking on 7.1mm and 6.5mm sieve, followed by grade C, parked on 5.5mm sieve

Sumatra, Indonesia:

Graded by particle size and number of defects, Gr.1 is the highest export grade, but the appearance of beans has nothing to do with the actual quality and must be determined by cup test, and there is no choice for fine coffee produced by the manor.

India:

To the monsoon export part, the most famous is Monsooned Malaber AA, in addition to Monsooned Basanally, Monsooned Triage, Monsooned Robusta AA, Monsooned Robusta Triage

Papua New Guinea:

Classified according to the particle size and the proportion of defective beans, the excellent A grade produced by large estates (more than 17 sieves and the average number of defects per kilogram of raw beans is less than 10 units). The second is the X grade produced by small farms (greater than 15 sieves and the average number of defects per kilogram is less than 20 units).

Hawaii:

Extra Fancy, Pingdou 19 sieve / Yuandou 13 sieve, 300g 8 missing points

Fancy, Pingdou 18 sieve / Yuandou 12 sieve, 300g 12 missing points

No.1, Pingdou 16 sieve / Yuandou 10 sieve, 300g 18 missing points

Then there are Estate Select and Prime grades.