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
Metropolitan Brewing Metropolitan Brewing Metropolitan Brewing is a brewery located in Chicago, Illinois that was founded in 2008 by (former) husband and wife team Doug Hurst and Tracy Hurst. The brewery was originally located in a converted warehouse in a historically industrial area of the Ravenswood neighborhood in Chicago. In 2017 they moved to a larger facility with a tap room at 3057 N Rockwell Street in Chicago. Metropolitan focuses on brewing lagers in the traditional German style. They are the sole craft brewery in Chicago that produces only lagers. Mr. Hurst has earned a brewing diploma at the Siebel Institute of