AA (7,2 mm),
AB (6,6 mm),
C (screen 14-15),
E, TT, T, UG, MH, ML; these are just some of the full range of different grades.
According to our experience cupping at the Nairobi Coffee Exchange, the best coffees are found always between the grades AA, AB, PB and C. But the system assumes that the bigger the bean the better the cup, but that is not always correct. We have had many times the best cup in the C grade and not in the AA for the same ON.
In simple words the Nairobi Coffee Exchange works as a weekly Cup of Excellence, stimulating competition and prices for the best lots; and the different grades generate the synergy that provides the best formula for maximizing the benefits of small farmers.
This formula becomes particularly important, in times like this week, when the Coffee Futures in New York plummet to minimums of more than 12 years to 100.4 cts / lb.
Enjoy your Kenya coffee in Barcelona and Santiago!