How to choose coffee beans G1 G2 G3 G4 what are the treatment methods? Boutique coffee beans

In fact, these Grade-2,Grade-3 do not exactly represent the level of quality. What does that mean? As follows:

Washing:

A) Gr-1 is available both in washing and in the sun, provided that there is a "zero" defect and PremiumCup. Whether it's washing or tanning, Gr-1 rates the boutique of the boutique or CupofExcellence coffee.

B) the lowest level of sun-tanned Shifei and Sidamo is Gr-4.

C) beans of the same level, such as Lim gr-2, have both good and bad, depending on the sorting level and input of the exporter.

D) to meet the requirements of existing "zero" defects, gr-1 beans (including those washed in water or in the sun) are extremely rare because of the high cost of processing and very few suppliers will do them.