Rwanda and Burundi screen grades
Rwanda's exporters grade washed Bourbon by screen into High, Medium and Ordinary and overlay cupping-score tiers, while Burundi borrows the East African AA/AB/C letters. Both countries sell most coffee through washing-station lots where the station name matters more than the grade.
- Grades
- 5
- Defect sample
- 350g
- Screen sizes
- 2listed
- Origins using it
- 2
The grades
In this atlas's own words| Grade | What it requires |
|---|---|
| Rwanda High Grade | Screen 16. |
| Rwanda Medium Grade | Screen 15. |
| Rwanda Ordinary | Screen 14 and below. |
| Rwanda specialty tiers (importer usage) | Super Specialty 90-100 points, Specialty 80-90, Grade 1 70-79, with defect counts per 350 g. |
| Burundi AA / AB / C | Screen 18 / 16 / 14 in importer tables, following the East African letter system. |
How it is measured
Screen sizes
- Rwanda 16/15/14
- Burundi 18/16/14
Defects per 350 g
Rwanda specialty tiers cite 5 defects per 350 g for Super Specialty and Specialty, 9-23 for Grade 1.
Altitude terms
None used.
Other grading systems
- Central American and Mexican altitude grades
- Classificação Oficial Brasileira (COB) / New York method
- Coffee Board of India grades
- Colombian export preparations
- Ethiopian grades 1-9
- Hawaii Administrative Rules Chapter 4-143 green coffee grades
- Kenya size and density grades
- Other national grade vocabularies
- Peru altitude grades and NTP 209.027
- SCA (formerly SCAA) green coffee classification, as publicly restated
- SNI 01-2907-2008 defect-value grades
- TCVN 4193 green coffee grades
- Tanzania Coffee Board grades