All Kenyan coffee is graded primarily by screen size. A larger bean receives a higher grade immediatelyaftermilling. TheAAGradeisthetopgradebasedonthisscreeningprocess. After grading, the quality distinction "Top" or "Plus" indicates that only a minimal amount of slight defects were allowed as long as they have no effect on the cup. These coffees are typically grown at an altitude between 1350m and 1800m.