Pennsylvania Dutch Birch Beer is a brand of soft drink, of the birch beer type, whose trademark is owned by USA Beverages, Inc., a beverage bottler operating primarily in the United States. It is available in regular and diet varieties, and is sold in 12-oz. cans and 2-liter bottles.. Pennsylvania Dutch Birch Beer's regular variety is sweetened with sugar and/or high-fructose corn syrup, the latter being a highly controversial sweetener extracted from the sugars found in corn. Its diet variety has been sweetened with saccharin and/or aspartame as these have gained preferability, and some people have proposed using sucralose for the purpose.