Ethiopia Guji Natural pulling sour: what am I missing?
Picked up the Guji Natural from the last drop and my shots are bright to the point of sour. I’m at 18 g in, 32 g out in 24 seconds at 93°C on a single-boiler machine with flat burrs. It smells like blueberry jam in the bag; I just can’t get that into the cup. Grind finer, longer ratio, hotter water? I’m down to half a bag.