group of American brewers, defines a brewery as "craft" if it: 1. is largely independent of outside corporate ownership, 2. produces fewer than six million barrels per year, and 3. uses traditional ingredients such as malted barley, or innovative ingredients to enhance flavor. According to the Brewers Association, the five largest craft breweries in order of sales volume for 2021 were: D. G. Yuengling & Son of Pottsville, Pennsylvania (Philadelphia), Boston Beer Company of Boston, Massachusetts (which produces Samuel Adams beers), Sierra Nevada Brewing Company of Chico, California, Duvel Moortgat USA of Paso Robles, California, Kansas City, Missouri, and Cooperstown, New York Gambrinus Company of San Antonio, Texas (which owns the Shiner, Texas-based Spoetzl Brewery and produces Shiner Beer). The relative success of the commercial craft brewing industry has led some beverage giants such as AB Inbev to invest in smaller breweries such as Widmer Brothers and Goose Island, and to develop more complex beers of their own. Despite growth of the craft and microbrewing industry, however, craft beer still only accounts for 11% of total beer sales by volume in the United States, although that number is expected to rise in coming decades. While the rise of craft beer in the United States has not been defined by any single geographic area, regions of the country associated with a strong craft brewing culture include the Midwest, Mountain West, and the Pacific Northwest, where the majority of American hop varietals are grown. Overall, the West Coast has the most craft breweries and the Deep South has the fewest. Portland, Oregon is currently home to 58 breweries, more than any other city in the world. Vermont, Montana, Oregon, Alaska and Colorado have the highest number of breweries per million inhabitants in the nation. California, Pennsylvania, Colorado, Ohio and Oregon have the highest total craft output, respectively. Until recently, legal restrictions have prevented craft breweries from flourishing in the South, such as limitations on the alcohol content of beer and the questionable legal status of homebrewing in many Southern states. In recent years, however, Mississippi has raised the limit on the alcohol content of beer from 5% to 10% ABV and has fully legalized homebrewing. Craft Beer has a rising Craft Non-Alcoholic category rising in popularity with breweries like Surreal Brewing Company in California solely dedicated to creating non-alcoholic beer. Beer styles Pre-Prohibition styles Historical beer styles indigenous to the United States