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
Doctors were able to prescribe medicinal alcohol for their patients. After just six months of prohibition, over fifteen thousand doctors and fifty-seven thousand pharmacists got their license to prescribe medicinal alcohol. Grape juice was not restricted by Prohibition, even though if it was allowed to sit for sixty days it would ferment and turn to wine with a twelve percent alcohol content. Many folks took advantage of this as grape juice output quadrupled during the Prohibition era.