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Why are beer bottles brown?
It is one of those questions we never thought to ask ... until someone pointed it out.
That someone is the
"Beer has been around for quite a while - some of the first to brew it was the ancient Egyptians thousands of years ago," says the
Brewers soon discovered that when beer is stored in clear glass, it starts to smell "skunky" - like a skunk, literally - when left in the sun for too long, says the
"This was because the clear glass allowed UV rays to penetrate the beer and alter the flavor."
Popular Science backs this up, by noting the bittering agent generated from hops while boiling beer wort is a compound that can be degraded by ultraviolet light.
As we now know, the solution was making the bottles brown, or any darker color, to block out the rays. The
The tradition could change in the future, says the Insider, since brewers can apply UV protected coats to glass to preserve taste.
(c)2017 The Charlotte Observer (
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