Batch 1. Bottoms out at 213 FC@ 380, 13:44 Pull at 402, 17:30 Rd is 3 min 50 sec Too long a roast! Next time open cyclone, close airflow. Appearance: average SF roast. Tastes like it too, although slightly bitter, not as exciting.
Batch 2. Bottoms at 213, 1:55 Open cyclone was bad choice! Beans lost. FC@ 381, 11:49, opened air a bit more to prolong RD. Pull at 402, 14:53 Unbelievable. Lost half batch? Better timing. Stick with orig plan. First roast always long? Look good. Taste more exciting. Only slight, slight bitter trace.
Batch 3. Bottoms at 207, 2:03 Cyclone half, air duct open so you can hear. Bread strong at 346, 9:40 FC@ 380, 13:00 Air already flowing a bit. Left as is. Pull at 403, 16:29 Look good, taste pretty good; sugars, oils, acids could be better.
Batch 4. Leaving bean gate closed cyclone at half. Hoping for shorter roast time with no negative effects. Bottoms at 203, 2:14 (forgot to raise heat after dumping last batch.) FC@ 383, 12:17 Pull at 402, 15:08 Slightly light for profile, but look good. Taste great. Lasting, sweet, have good crack of flavor to them.
Batch 5. Keeping bean gate closed, cyclone at half. Bottoms at 211, 1:25 FC@ 382, 12:05 Pull at 403, 15:16 Got it.