Hey there,
So sorry for the long wait - I didn't see the e-mail that said there was an update. I normally roast single origin but I take a bit from each batch and make a blend. Normally pretty good.
Dunkin Donuts is likely a blend of Arabica. If it was single origin I'm sure they would tell us as part of their advertisement.
I just ordered 5 lbs of different varieties from
http://www.u-roast-em.com/. Also just ordered a Technivorm Moccamaster KBT-741. I'll let you know how it goes but I'm betting it'll be good.
Best,
Grey