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What determines beer color?

Tyd: 2020-07-10 Kommentaar: 14

Grain is by far the strongest coloring agent in beer. Beer color is measured on the Standard Reference Method (SRM) scale. SRM is calculated by passing light of a specific wavelength through a specific “thickness” of beer (one centimeter) and measuring the amount of light absorbed by the beer. Beers at XNUMX-XNUMX on the SRM scale are considered pale/gold and include styles like Pilsner and light lagers. Beer in the XNUMX-XNUMX range is considered amber, and styles include Oktoberfests, American Amber Ales and (paradoxically) English Pale Ales. At XNUMX-XNUMX, we reach copper and brown, with styles like Bock and English Brown Ales. Above XNUMX, we’re parsing shades of deep brown and black, topping out (in practical terms) at about XNUMX, though the SRM scale theoretically runs well into the XNUMXs and XNUMXs in the most-roasted beers like Imperial Stout! Above XNUMX, though, the beer is effectively black and opaque.