But there's (AFAIK) no caffeine in acorns or barley, so what's the point?
As a healthy alternative to coffee when your pregnant, if marketed correctly, could make a mint.
At least with the Barley, and it does act like espresso so would also be a great decaf option. I use to work the 4am shift in a coffee shop, so after waking up with a couple of quad shots, the alternative later in the day would have been nice:)