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This Wired article may help shed some light on wavelengths and bottle colour. http://www.wired.com/2013/03/physics-and-green-beer-bottles/ Amendment 1 Light in wavelengths of 350 nm to 520 nm (upper UV to mid-visible light) is known to cause skunky beer. Green bottles allow green light (520 nm to 550 nm) to pass through, whereas brown bottles (ranging ...

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