During the years 1919 - 1932 a big blow hit the wine industry. Prohibition was legislated. However during the Prohibition years the Federal Government allowed each wine making family to produce 200 gallons per year for their family's own consumption. After President Franklin Roosevelt released the Prohibition Law, the wine, beer and liquor industries began to take off. Before the 1960's the state of California set the prices for each variety of wines, keeping all wineries at each set price. This law in California and a fe others states kept prices set for retail sale. Many growers could not afford to grow grapes and began losing money.

The most progressive Period for the wine industry started around 1950 when many "Soda Pop" wines hit the market. The Gallo Brothers, Louis Petri, Piebro, Rossi and Sons etc. started blending their wines with fruit. Brands like Bali-Hai, Petri, Silver Satin, Hombre, Red Mountain, Thunderberg, Ripple, Spanada, Tri Vola and Boone Farms began to appear. Gallo and United Vintner's USA started these various fruit wines to the delight of those who prefer the tasty fruit wines over dry wines. The other vintners soon followed suit and began to produce these blended wines.

Little by little, one by one the higher priced wines like Cabernet, Chardonnay, Merlot and other top premium wines which had their start in other countries, began to hit the market. After World War II these dry wines' sales started to grow at a tremendous pace.

California wines became very popular as many vintners began to purchase other wineries and consolidate. California Agriculture became one of the largest growth products of the world.