Does Beer still move by rail? The beer cars made me think of this.
Those beer cars were for shipping barrels of beer. Prior to prohibition, over 80% of beer in the US was sold on draught at taverns. Even industry giants like Pabst, Schlitz, Ballantine, and Anheuser-Busch had just one big brewery. They had to ship those barrels all over the nation.
After Prohibition, draught beer consumption began to decline as the major brewers improved their bottling and then canning processes. Packaged beer is pasteurized and doesn't require refrigerated railcars.
Also after WWII, I know that our local brewery, Anheuser-Busch, brought the mountain to Mohammed: they opened breweries in Newark, NJ and Los Angeles, CA. So between the local breweries and better packaging, the beer cars became unnecessary.
And they built one in Houston.
Not altogether true. Railroads still haul beer in some areas. Here's one example.
"Unbeknownst to most commuters and residents, a railway has dutifully delivered New York City’s beer supplies for more than 20 years. The hidden freight train is so essential to the city’s beer consumption, in fact, that New York & Atlantic Railway president James Bonner nicknamed it the “pizza-and-beer railroad.”
Headquartered in Glendale, Queens, the New York & Atlantic Railway services Nassau and Suffolk Counties on Long Island, as well as Brooklyn and Queens. It operates via the Long Island Railroad (LIRR), the country’s densest passenger system, connecting to other railways including the BRT, CP, CSXT, NS, NYNJ, and P&W.
High on its list of deliveries are flour and beer. According to The New York Times’s Corey Kilgannon, things get especially busy during peak beer-drinking occasions like the Super Bowl and St. Patrick’s Day. At those times, up to 30 rail cars transport 3,500 cases of beer each, some of it coming “all the way from Mexico” with Corona and Modelo Especial."
I don't know the extent to which US breweries use rail to transport beer (although they have used glass-lined tank cars to transport slurry between breweries), but Mexico's beer travels by train. I posted another article at the Forum Real Trains site about Mexican beer being transported by the UP - pretty interesting information.