by another_jim on Tue Jun 23, 2009 7:59 pm
I go shorter. I knock a minute off the drying period, use the same ramp to the frist crack, than finish the roast in the same time as a medium or light espresso roast. This prevents ashiness, the biggest problem with dark roasts.
The faster finish requires higher environmental temperatures which can char low grown beans. If that happens, reduce the weight of beans to get better heat transfer and keep the enivronmental temperatures down.