The reason beer bottles have always been green and brown
The first Beer brewed is thought to have been the work of the ancient Egyptians thousands of years ago.
But it was only in the 19th century that beer was first bottled up – and sold commerically.
Brewers realised that glass would keep their tipples fresh, preserving the beer for their customers' satisfaction.
But, as the industry got underway, beer was first stored in clear glass. This seemed to work for a while. It would be a solution in winter, perhaps. But if left in the sun, bad things started to happen to the liquid.
Beer left in transparent bottles would start to smell "skuny", Business Insider says. Yes, like a skunk. Not a nice fragrance for an after work drink.
The foul odour came about because the clear glass allowed UV rays to penetrate the drink and alter the flavour.
Green or brown bottles. A darker colour blocks out the damaging UV rays. It provides more protection and the beer remains skunk smell-free.
You might be wondering why beer bottles are far more often seen to be green than brown? That's because there was a shortage of brown glass after World War II.
Since then, green has sort of stuck as the traditional beer bottle colour, though you do see brown occasionaly.
These days, brewers can apply UV protected coats to glass to preserve the taste. But they probably keep the old colourful bottles anyway.
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