08 Apr '11, 7am

Why Glass Comes in Different Colors

Why Glass Comes in Different Colors

Crushed glass, or cullet, is melted down to form new glass containers. (Stock Photo) Glass is renewable and one of the only materials that can be endlessly recycled without losing strength or quality, so the glass found in your spaghetti sauce jar or wine bottle can go from the recycling bin to store shelves in as little as 30 days. Find your local recycling solution for glass Color Significance Have you ever wondered why beer usually comes in amber glass and wine is often in green glass? Brown glass absorbs the most ultraviolet radiation, at wavelengths shorter than 450 nm (nanometers), so it offers the best protection from potentially damaging light. Beer, for instance, would be ruined by light absorption so you’ll usually find your favorite brew in a brown bottle. Green glass still has the light protection, but not as much and since liquids like wines and juices can be ...

Full article: http://earth911.com/news/2011/04/08/why-glass-comes-in-di...

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