"less beer" is a perfectly correct and usable phrase in written English.
For example, you might write, "I'd like to drink less beer this summer".
Maybe it's also higher Plexiglas, stiffer trespassing fines, less beer.
Canadians were drinking less and less beer, especially the traditional mass-produced brands.
"We just figured that all we had to do is drink less beer than we sold".
– Glenn Collins NPR: Germans are drinking less beer these days, but why? — Maria Newman.
Although Belgians are drinking less beer than they used to, they are getting choosier.
"I opted for less beer, more flavor, the six-packs, not the 30-packs," he said.
The final difference is that Czech pubs offer less beers, usually one or two alcoholic and one non-alcoholic.
It was too hard to justify sacrificing what would have been my first meal that day for a pretty much substance-less beer.
Vodka has even less than beer, or next to none at all.
"We were selling pint glasses and T-shirts and we didn't even have a building, much less a beer".
If you're looking to eat, or spend, a little less, the beer is also available à la carte, as are items from the regular cafe menu.
