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Classification of raw coffee beans

Published: 2026-04-03 Author: World Gafei

Last Updated: 2026/04/03, Level 1: special product defects: 0-5 do not allow to contain obvious defects total sample weight: 300 grams sample size difference: less than 5% 5% or so, or within the specified range of appreciation features: must be at least a little outstanding in the following characteristics: taste, sour taste, taste, aroma. The characteristics will be determined by both the buyer and the seller. After cup testing and appreciation, there are no defects. Baking difference

First class: special grade

Blemish: 0-5

Obvious defects are not allowed.

Total weight of sample: 300g

Sample size difference: less than 5%, about 5%, or within the specified range

Connoisseur characteristics: must be outstanding in at least one of the following characteristics: taste, sour taste, aroma. The characteristics will be determined by both the buyer and the seller. After cup testing and appreciation, there are no defects.

Baking difference: 0 humidity: 9-13%

Second class: top grade

Blemish: 0-8

Allow to contain minimal defects

Total weight of sample: 300g

Sample size difference: less than 5%, about 5%, or within the specified range

Baking differences:

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。