another_jim wrote:Decling ROR indeed! The difference is kind of obvious if you stop using this mind numbing babble, and think basic heat transfer. On your HG/BM, the environmental temperature rises slowly throughout the roast, so the bean temperature profile is far more straight line. In the Bullet, you are using a high ET drop in temperature, and keeping the ET roughly steady. That means the bean temperature profile is more curved, spending longer in the later parts of the roast. Try a lower drop in temperature and more heat so the ET climbs throughout the roast, this will give you the profile you had on the HG/BM.
I'm glad i'm coming to the same conclusions, although finding the right drop temp has been tricky. Luckily I got ~20lbs of garbage beans from a local commercial roaster so i'll be testing out optimal drop temps for this method this week.
another_jim wrote:Oh, plan out your roasts ahead of time, and stop fiddling on the controls to correct every ROR twitch; the more nervously you roast, the worse it will taste. This is the secret reason people get better results on bigger roasters -- they filter out ROR induce roaster twtchiness disorder (RORIRTD)
before a roast: follow the designer curves, don't freak out if RoR spikes, stick to the plan
30 seconds after drying finishes:
Being serious, I've been having a lot of trouble with Designer on linux the past couple of versions so I've been rather lackadaisical about pre-planning my temps... I'll update to 2.0 after work and hopefully that will help