You're the Captain of the U.S.S. Taste Buds. Stay on Course. A second barrage of popping begins. View the coffee and notice that the chaff still glows and the beans turn black. The popping becomes louder and louder.
Oil starts to seep from the back side of the beans.
You watch, smell and listen for the perfect moment. Viewing the coffee again, there's a lot of smoke. The chaff is still glowing and the oil on the beans move towards The chaff edge. The popping slows to a low crackle. The chaff starts to brown.