Drossenfelder Bräuwerck Neudrossenfeld
One of the newer Oberfranken breweries, having opened in 2013, Drossenfelder Bräuwerck offers technical and mostly clean renditions of Helles, Dunkles, Weizen and Bockbier in a polished old world atmosphere, complete with full kitchen.
Neudrossenfeld certainly requires travel by car if you're based in Bamberg, out some 50 km to the east along the Bundesautobahn 70, and roughly 12 km north of Bayreuth.
I wouldn't suggest making the trip simply to try the beer, because while 3 of 4 were of decent quality without flaws, they were not what I could call inspired or mesmerizing drinking experiences, which is kind of what you're going for in a place like Upper Franconia.
So if you do visit, make sure to also visit Brauerei Haberstumpf in the nearby village of Trebgast, and you would be foolish to not stop by Brauerei Gradl on the other side of Bayreuth if you're in the area.
On to the reviews.