From Wikipedia:
As with all breweries in the country, the Temperance movement and eventual Prohibition in the United States dealt a major blow to the company in the 1910s through the 1930s. Some of the products sold by Anheuser-Busch to survive during Prohibition included brewer’s yeast, malt extract, ice cream, and Bevo, a nonalcoholic malt beverage, or “near beer”.[19][24]
Pictured is the Busch family estate in St. Louis, which is open for tours.