Tegu is a coffee washing station, a wet mill, a coffee factory. Well, it's all three. A "factory" is a wet mill where the coop members bring coffee cherry for pulping, fermenting, washing, drying. It's not the factory as we might imagine it. Small washing stations are aligned with a particular "society" which is what they call a cooperative in Kenya. Tegu is part of Tekangu Farmers Cooperative Society (FCS) which combines the names for their 3 factories: Tegu, Karagoto and Ngunguru. I visited them this season and the previous as well, since we have bought many small lots over time from Tekangu. While most of the lots this year grade out as the smaller AB preparation, the quality from Tegu has been remarkable, and this lot was graded as AA. What I saw at Tegu was excellent sorting of cherry at the mill by each picker, before they submit the coffee to be processed. Over-ripe and immature cherries are culled out. They also have a system where pickers are graded as A or B. "A" pickers are those who have been proven to deliver well-selected and sorted cherry, and they are invited to submit coffee on the "A" day, when a higher price is paid. "B" pickers are still yet-to-be-proven, or have had more immatures and over-matures in their bags. They must come on the lowly "B" day and are paid less. Maybe it seems harsh, but there is no better way I have seen to create an incentive for quality harvesting, rather than mindless strip-picking of the coffee tree. (By the way, this A and B picker system has nothing to do with the AA or AB grade, that refers to screen size of the coffee at the from Ethiopia and Yemen. ">dry mill only. AA, AB and PB all comes from the exact same lot submitted to the dry mill, and is separated only by the coffee size screening equipment). This review is for the final lot of AA grade Tegu, which was shipped in vacuum packs.