Why are beer bottles usually made of green or brown glass?

tadpoles_uk

So the light from the sun doesn't alter the beer chemically. http://www.timvp.com/laughin1.jpg The same happens for gasoline - sunlight will degrade the octane rating of gasoline. Oct 02 12, 9:34 PM

nautilator

Brown coloring filters light that prevents beer from skunking. Green bottles were used when there was a shortage of brown, and are generally used by some brands as a status symbol or for its color. (Clear bottles are also sometimes used, to show off the color of the beer.) http://brokensecrets.com/2010/03/23/why-beer-bottles-are-green-brown-or-clear/ Oct 02 12, 9:38 PM