Ethiopia Washed Yirgacheffe Kochere Tigist Boru Zero Defect (GP) (22 lb. Box)

This washed lot comes to us from producer Tgsit Boru of the Kochere district in Gedio. The pre-shipment samples of this showed notes of raspberry, lemon, and pomegranate on the cupping table. The arrival samples were even better than the pre-ship with clean, integrated notes of peach, watermelon, and blueberry. As I was preparing a batch to roast on our Diedrich IR-5, I noticed how clean and well-processed this washed offering was. I charged 9 lbs. at 389°F with the burner set to 50%. The roast turned around 1:30 into duration at 164°F. At 2:47 into duration, I increased heat application to 75%. As the roast built up momentum, I adjusted airflow to 50% at 5:02. I marked color change 6:10 into duration at 314°F. The coffee took on color smoothly and evenly. The next gas adjustment came at 6:27, lowering the burner to 50%. Moving closer to the development phase, I dialed back heat application to 30% at 8:13 into duration. The development phase of the roast was reached 8:56 into duration at 388°F. First crack was audible with floral aromas. At 9:02, I increased airflow to 100%. With the roast having momentum, I lowered the burner to 25% at 9:22. I had to really stay on top of this roast and find the right balance of heat and air, otherwise I would risk stalling out with a low flame due to the amount of air moving through the drum. Duration of the roast was 11:35 with an end temperature of 403°F and a development time ratio of 22.9%.