There's probably a lot of truth to this. I've heard that they have to source their beans from many different suppliers and resort to over-roasting to ensure a

There's probably a lot of truth to this. I've heard that they have to source their beans from many different suppliers and resort to over-roasting to ensure a more consistent (albeit, burnt) flavor. Most of the smaller shops source their beans from local roasters, or even do the roasting themselves.