San Diego County, California, has been called "the Craft Beer Capital of America".[1][2][3] As of 2018[update], the county was home to 155 licensed craft breweries – the most of any county in the United States.[4][5] Based on 2016 sales volume, three San Diego County breweries – Stone, Green Flash, and Karl Strauss – rank among the 50 largest craft brewers in the United States. San Diego County brewers pioneered the specialty beer style known as Double India Pale Ale (Double IPA), sometimes called San Diego Pale Ale. Its beer culture is a draw for tourism, particularly during major festivals such as San Diego Beer Week and the San Diego International Beer Competition. San Diego County breweries including Stone Brewing Co., AleSmith Brewing Company and Ballast Point Brewing Company are consistently rated among the top breweries in the world.[6][7][8]