The coffees are in the specialty segment, meaning that they come from specific farms or a specific group of farmers. They are from the high end of the market, where small coffee lots are chosen only because of outstanding taste. In this market the farmers are paid much better than any certification program can guarantee.
The coffees are roasted on a Probatone 12, a modern machine from 2014. Some very exclusive coffees are roasted on a Stronghold S7 Pro machine.