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
Frederick Brewing Company says that Frederick Brewing Company was the first brewery in the United States to make beer with hemp seeds. By June 1997 Frederick Brewing Company had back-orders of 10,000 cases for their Hempen Ale. The ale also caught the attention of the Bureau of Alcohol, Tobacco, Firearms and Explosives, the Food and Drug Administration, and the Drug Enforcement Administration who got involved because it is illegal to grow hemp in the United States. Hemp seeds, imported from China, were a key ingredient in Hempen Ale making up 10% to 30% of the beer by weight. Federal regulators were also concerned