In the 70s I read group of books. They were not quite conventional novels. There were references to science fiction/fantasy elements although they were not hard core genre stories. The protagonist was a bartender in a neighborhood bar in a large city, which is where most of the activity took place. There were some regulars in the bar who appeared in all the books. The only thing I can recall clearly is frequent references to "Alte Kameraden" beer. I have a feeling, but am not sure, that the stories were written not in a conventional narrative format but in a free verse style.
I believe you may be referring to Arthur C. Clarke's Tales from the White Hart:
The White Hart is a pub (modelled on the White Horse, New Fetter Lane, just north of Fleet Street, once the weekly rendezvous of science fiction fans in London) where a character named Harry Purvis tells a series of tall tales. Incidental characters inhabiting the White Hart include science fiction writers Samuel Youd (aka John Christopher), John Wyndham aka John Beynon, and Clarke himself in addition to the narrative voice as his pseudonym Charles Willis.
I have only ever read one of Spider Robinson's books about Callahan's Crosstime Saloon. It was quite memorable, but I don't remember any of the beers! Could that be the one? (Rickard's was the beer in Callahan series, which of course is rife with puns)
(If not, a search for "science fiction bar" reveals a few top 10 lists and the like, maybe that would help prompt details?)