I went on a brewery tour during ROTC summer camp in 1975. It was a good tour, but we were only allowed to sample the beer for about 30 minutes.
Contrast that to the tour my platoon took to the Konigsbacher Brewery in Koblenz, Germany. My platoon sergeant and his wife set it up. The tour took about 90 minutes, then we were treated to a full meal (ham, potato salad, brotchen, etc.) in one of their tasting rooms.
Our host told us, "drink all you want until we close at 6"...it was about 3 at that point. We were also invited to their glass factory, across the train tracks. We were able to buy steins and beer glasses at cost plus 10%.
The view from their restaurant onsite was scenic, to say the least. It offered beautiful views of the Rhein River.
I usually visited once a month. The jagerscnhnitzel was excellent, and they served bock bier on tap year round.