Prohibition and the Collapse of American Brewing
In 1916, the United States had approximately 1,300 commercial breweries producing a rich variety of regional styles shaped by waves of German, Czech, British, and Irish immigration. Only around half of that number ever reopened after repeal, and the survivors were then steadily absorbed or driven out. The thirteen dry years did not only destroy businesses; it erased recipes, broke supply chains, disbanded experienced workforces, and accelerated the consolidation that would reduce American brewing to a handful of national brands producing a single homogenized style by the 1970s. Understanding Prohibition means understanding why American craft beer had to reinvent traditions that should never have been lost.
The 18th Amendment and the Volstead Act
The National Prohibition Act — more commonly called the Volstead Act after its principal legislative sponsor, Minnesota congressman Andrew Volstead — took effect on January 17, 1920, implementing the 18th Amendment to the Constitution, ratified in 1919. The amendment prohibited the manufacture, sale, and transportation of intoxicating liquors. It did not prohibit personal possession or consumption of liquor acquired before the amendment took effect, a loophole that allowed wealthy Americans to cellar existing stocks. It also allowed households to make "non-intoxicating" cider and fruit juices at home, a loophole that home winemakers exploited enthusiastically.
The temperance movement that produced Prohibition had been building since the 1830s. The Women's Christian Temperance Union, founded in 1874, and the Anti-Saloon League, founded in 1893, were remarkably effective single-issue political organizations that built coalition support across Protestant denominations, rural communities, and progressive reformers who genuinely believed that alcohol was the primary driver of urban poverty, domestic violence, and immigrant criminality. The argument was not entirely wrong — the nineteenth-century American saloon had genuine social pathologies — but the cure proved worse than the disease. World War One added another lever: breweries owned by German-American families, including Anheuser-Busch, Pabst, and Schlitz, became targets of wartime anti-German sentiment, and the argument that barley should feed soldiers rather than fuel beer found wide political traction.
The Scale of Destruction
American brewing in 1916 was not simply large; it was geographically and stylistically diverse in ways that are difficult to reconstruct from surviving records. German immigrant communities in Milwaukee, Cincinnati, St. Louis, and Chicago had built breweries producing Munich-style lagers, Märzen, Bock, and Weizen alongside the American light lager that was becoming the commercial mainstream. Bohemian immigrants in Chicago and New York had brought Czech Pilsner traditions. English and Irish immigrants had established porter and stout breweries in eastern cities. Each region had developed house character through local water, grain, and yeast cultures refined over generations.
When the act took effect, most breweries simply stopped production. Some converted to legal businesses: Anheuser-Busch, the largest American brewer before Prohibition, diversified into baker's yeast, malt syrup, refrigerated trucks, a near beer called Bevo, soft drinks, and ice cream. They survived and returned to brewing in 1933 in stronger competitive position than before. Yuengling, America's oldest brewery (founded 1829 in Pottsville, Pennsylvania), survived by producing near-beer — de-alcoholized beer below 0.5% ABV — and opening a dairy that produced Yuengling's ice cream. The dairy itself eventually closed, but the Pottsville brewery is still family-owned and still brewing.
Miller, Pabst, and Schlitz survived through similar diversification. Pabst made cheese. Coors, based in Golden, Colorado, converted its brewery to a ceramics and malted milk operation; the malted milk product kept the facility running throughout the dry years. Smaller regional and local breweries, lacking capital for diversification and facing the permanent loss of their operating licenses, simply closed. The specific yeasts, hop varieties in cultivation, water adjustment protocols, and recipes associated with those breweries disappeared with them.
Illegal Production and the Speakeasy
Prohibition did not end alcohol consumption; it redirected it into illegal channels. Speakeasies — unlicensed drinking establishments — proliferated across American cities, supplied by bootleggers importing spirits from Canada and the Caribbean or distilling domestically. New York City was estimated to have had over 30,000 speakeasies at the height of Prohibition, roughly double the number of legal saloons that had existed before 1920. Beer was harder to bootleg than spirits because of its bulk: a full barrel weighs well over 100 kg and is difficult to move covertly, while the same money's worth of whiskey fits in a suitcase. The practical consequence was that spirits gained ground relative to beer during Prohibition, reversing the pre-Prohibition trend of beer displacing whiskey.
The quality of speakeasy beer was often poor — rapidly produced by brewers working with inferior ingredients under time pressure, consumed from venues with no quality control. Home fermentation using the malt syrup products legally sold by surviving breweries (including Pabst's Blue Ribbon malt extract, marketed with a straight face for baking and cooking) became widespread. It is often argued that these years left drinkers with a taste for lighter, safer-tasting beer, which suited the surviving large breweries when legitimate production resumed.
Repeal and the Recovery
Beer actually came back first: the Cullen-Harrison Act allowed the sale of 3.2 percent beer from April 7, 1933. The 21st Amendment, ratified on December 5, 1933, then repealed national Prohibition but left each state the authority to regulate alcohol within its borders. Many states retained Prohibition for years — Kansas stayed dry statewide until 1948, and Mississippi maintained state Prohibition until 1966. The patchwork of state and local regulations that survives today — dry counties, Sunday closing laws, grocery store beer sales restrictions, tied house prohibitions — is largely Prohibition's legacy.
The breweries best placed to return to production in 1933 were overwhelmingly the large, well-capitalized companies that had diversified their way through the drought. They produced a single style — American lager, lighter and lower in bitterness than most pre-Prohibition examples — and spent the next four decades consolidating market share through advertising, refrigeration infrastructure, and predatory pricing. By the late 1970s fewer than fifty American brewing companies remained, and the five largest — Anheuser-Busch, Miller, Pabst, Schlitz, and Coors — controlled roughly 75% of national production. Fritz Maytag's acquisition of the failing Anchor Brewing Company in San Francisco in 1965 and Ken Grossman's founding of Sierra Nevada Brewing in Chico, California in 1979 are the foundational acts of the reaction against this consolidation (our comparison of craft and macro breweries picks up the story).
What Was Lost
The specific losses from Prohibition are impossible to fully enumerate. The Cream Ale tradition — a distinctly American style blending ale and lager techniques, light-colored and lightly hopped — shrank to a few survivors such as Genesee Cream Ale. American porter and stout brewing, which had genuine depth in cities like Philadelphia and Baltimore, dwindled to a handful of examples, Yuengling's porter among them. The German-American regional lager traditions of Cincinnati, Milwaukee, and St. Louis — which had developed house characters distinct from the national brands — were not recovered. The specific yeast strains that produced characteristic flavors in pre-Prohibition American ales are gone; craft brewers attempting historical reconstruction work from newspaper accounts, patent filings, and recipe books of questionable accuracy.
What survived was partly accidental. The Anchor Steam style — a hybrid fermentation process using lager yeast at ale temperatures, unique to San Francisco and developed during the Gold Rush era — was preserved only because Fritz Maytag bought the brewery before it could close. Jack McAuliffe's New Albion Brewing in Sonoma, California, founded in 1976 and often cited as the first modern American microbrewery, drew inspiration from British ales he encountered while serving in the Navy in Scotland — traditions that American brewing had largely abandoned. Yuengling's own continuity through the near-beer years offers a plausible, if uncertain, link to pre-Prohibition American brewing.
The Long Shadow
Prohibition's shadow extended beyond the industry itself. The consolidation it caused — by eliminating hundreds of regional competitors — meant that when Anheuser-Busch, Miller, and Coors went to war with each other in the 1970s, they were fighting not over beer styles but over shelf space and television advertising budgets. The consumer was left with stylistically identical products from different companies. The craft beer revolution of the 1980s and 1990s was not merely a commercial phenomenon; it was a recovery project, attempting to restore what Prohibition had erased. When Jim Koch founded the Boston Beer Company in 1984 and launched Samuel Adams Boston Lager the following year, he was selling an idea as much as a beer: that American brewing once had real character, and could again.
Explore on the Map
Anchor Brewing in San Francisco (which closed in 2023, but remains historically significant as the craft beer movement's founding institution) and Yuengling in Pottsville, Pennsylvania are both on the interactive map as monuments to the pre- and post-Prohibition story. Open the map of the United States to find them alongside the craft breweries that rebuilt what was lost — and the surviving regional breweries that never stopped trying.