Beer in the United States
On January 16, 1919, the Eighteenth Amendment to the United States Constitution was enacted into law, creating the Prohibition era, wherein the production, sale and transportation of alcoholic beverages was made illegal. All legal American brewing came to a halt when prohibition was imposed, though the earlier temperance movement had already reduced the number of breweries significantly. Only a few breweries, mainly the largest, were able to stay in business by manufacturing near beer, malt syrup, or other non-alcohol grain products, in addition to soft drinks such as colas and root beers. Production and shipping of alcohol was largely confined to illegal operations that could deliver compact distilled beverages—smuggled rum and domestic moonshine—more efficiently and reliably than bulkier products such as beer.
Prohibition in the United States
Prohibition had a notable effect on the alcohol brewing industry in the United States. Wine historians note that Prohibition destroyed what was a fledgling wine industry in the United States. Productive, wine-quality grapevines were replaced by lower-quality vines that grew thicker-skinned grapes, which could be more easily transported. Much of the institutional knowledge was also lost as winemakers either emigrated to other wine-producing countries or left the business altogether. Distilled spirits became more popular during Prohibition. Because of its higher alcohol content in comparison to fermented wine and beer, it became common to mix and dilute the hard alcohol.