Some people prefer lighter brews and some go for dark. For me, it depends on my mood. But if you want to know precisely what you’re getting yourself into before you pop open an ice cold can of alcoholic refreshment, it’s good to know that there exists a precise scientific scale for measuring the relative color of any beer. Using a colorimeter, Joseph Williams Lovibond developed his scale in 1885 which is still used today. The Standard Reference Method—or SRMs—is measured out in degrees Lovibond, in honor of its inventor. Brewers can now use more advanced tools like spectrophotometers in order to establish the attenuation of light as it passes through a sample of their suds. For a relative gauge of what particular style of beer might rank in terms of this scale, consider this: a super pale lager like Bud or Miller lite would be at around 2 SRMs. [...]




