Grading Coffee Beans
Grade Coffee Beans: no primary defects, 0-3 full defects, sorted with
a maximum of 5% above and 5% below specified screen size
or range of screen size, and exhibiting a distinct attribute
in one or more of the following areas: taste, acidity, body,
or aroma. Also must be free of cup faults and taints. Zero
quakers allowed. Moisture content between 9-13%.
Grade Coffee Beans: Same as Grade 1 except maximum of 3 quakers. 0-8
Grade Coffee Beans: 50% above screen 15 and less than 5% below screen
15. Max of 5 quakers. Must be free from faults. 9-23 full
Grade Coffee Beans: 24-86 full defects.
Grade Coffee Beans: More than 86 full defects.
Green Coffee Classification System Poster from the Specialty
Coffee Association of America.
see the Coffee Classification
section for more details.
this poster from SCAA
or the newly revised SCAA Arabica Coffee Classification