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
Low-alcohol beer in craft non-alcoholic beer production. Beers that are labeled "non-alcoholic" still contain a very small amount of alcohol. Thus, some US states require the purchaser to be of a legal drinking age. Exceptions include: According to the Birmingham Beverage Company, the brewing process of traditional brews consists of eight basic steps, nine for brewing non-alcoholic brews. Low-alcohol beer starts out as regular alcoholic beer, which is then cooked in order to evaporate the alcohol. This is possible because alcohol is more volatile than water, so it is easier to boil off. The alcohol is allowed to escape and the remaining