It seems that Bamberg is a very nice Brewery town with a lot of breweries. Also Weyermann malt is made there. I never been there but al lot of Dutch homebrewers like to visit Bamberg.
Google for "brauereien bamberg" and you can find a map with the breweries.
or type the city you want to visit in the next url
http://www.bierregion-franken.de/db_neu/