try this link here they want a small fortune for it though
Here is the data I was curious about...
http://www.cafecoffees.com/coffeeshoptestpage2.htmlIf I understand it correctly you have a 17.5 min time lag to bring 1# of coffee to 400 degrees.
I don't know how to figure the math that compensates for thermal mass sucking up heat/energy with an additional 6#'s of coffee in the drum but you are going to want to figure that out.....in actuality you don't have to
figure it out because the thing looks to have good data logging so you could just put 7#'s in there and find out right away what happens.
I really do wonder how long it takes to roast a 7#batch on a machine like this...
John F