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.
Napa County wine
As the turn of the twentieth century approached, a series of setbacks commenced that devastated the Napa County wine industry for decades. A phylloxera outbreak decimated the wine grape crop, and this was followed by Prohibition in 1918, which made the production and transportation of alcohol illegal in the United States. In 1933, when Prohibition was repealed, the United States was in the midst of the Great Depression, and as a result the Napa County wine industry did not fully recover until 1960’s.