Okay I've roasted a few more batches in my sc/to and I have more questions. How long should it take to get the BT to 300F, it usually takes me until about 2:15-2:30. I hold it there for 2:30 and then bring the roast up to 350F. 350F usually is at 7:30-8:00 and 1C happens around 10:30-11:00. Now it seems like everyone else is hitting 1C at 9:00 so I'm guessing it is taking me too long to get to 300F. Also I've always read not to stall the roast so whats the difference in stalling and holding? Does stalling only matter in the temps just before, during and after 1C?
Interesting starting approach. After your pre-heat you must be going pretty much pedal to the metal til you get to 300f BT and are then doing a hold. My TO roaster is a bit different with high speed agitation and use a different approach. I pre-heat to a similar level but then use less than full heat to get to 300f BT at approx. 4:15-5:00 for the average harder bean. at this point my BT RoR is approx 23-26 degrees/min. I then increase heat to keep about that rate which will then naturally start to slow around 360 BT. when I hit the MET I've found safe for my setup and the beans I'm roasting. I'll then stabilize that MET as the roast heads to 1st. The roast will naturally slow. At start of 1st my BT RoR is somewhere around 11-14/min. 1st starting around 9:30-10:15. Then adjust my temp. and RoR to the desired finish for roast level and brew method.
Agreed! I never use 100% power other than to preheat.
It swings from 85% to 60%, then back up to 80% to 60%, then 85% to zero; then back to 80%.
That translates to ~3 mins to 300°, then slow down for a minute; a minute or so to 370°, then slow down for 2 minutes; a minute or two to 1C, then power off & coast through 1C on exothermic heat; slow climb to 2C and counting - thousand-one, thousand-two...