Attenuation (brewing) Attenuation (brewing) In brewing, attenuation is the percentage that measures the conversion of sugars into alcohol and carbon dioxide by the fermentation process; a more attenuated beer will generally be drier and more alcoholic than a less attenuated beer made from the same wort. The percentage is calculated by comparing weight or specific gravity of the extract before and after fermentation. the following iteration,Attenuation = 100 % * (starting gravity − current gravity) / (starting gravity − 1) is meaningless This formula works with extract given in weight percentages or degree Plato. Extract refers to all the non water substances
Stone Brewing Co. has operated as its own product line, Bastard Brewing, produced at multiple breweries around the country. Most of Stone's beers are characteristic of west-coast craft brews, meaning that they have a high hop content. Compared to the macro-produced lagers, many Stone brews feature alcohol percentages that are well above average, ranging from 4.8% to 13%. Stone Brewing is rated as a "world class brewery" by the two largest beer enthusiast websites, RateBeer and BeerAdvocate. Stone Brewing has been voted by the readers of Beer Advocate as the #1 "All Time Top Brewery on Planet Earth." Stone opened in San Marcos