This is what my non-too-glamorous drum roasting setup looks like circa 2004. The drum very comfortably roasts 3 lbs and could probably do as much as 4 lb or as little as one. Basically, you just get your grill to a different starting temperature (note the dial thermometer inserted in).
Drum roaster on the grill all loaded with 3 lb of Ocumare
Dumping the beans after a 13 minutes roast
All cool and waiting for the next batch
These are a little dark on the outside, but really fine inside
This was my third batch and actually, this roast got a little out of control. The collar holding the drum closed slipped (now it has a new collar) and some beans dropped in and caused a very smoky fire, hence the sooty appearance on the beans. Since I consider this just about the worst I could do, I figure I will go ahead and process these into chocolate and see just how it comes out. It is often said that cocoa beans have a narrow window of good roasting, but these tasted pretty good. Mostly, they are not pleasing to the eye.
I will let you know how it comes out.
BTW, keep an eye here if you have an interest in obtaining some free samples of the varieties I have in stock. I am setting up to do a "Free Sample Friday", but still have to work out the logistics. More details in a few days...