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Originally Posted by Kitten
Oooohhhh! I never would've thought of this. So what about the bottles that are different colors (like green Mtn Dew, Vault, and Sprite)? If the cap is the same color as the bottle, is it okay to leave it on then?
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As far as I know, they can add some colorant to the whole plastic and then use it for something else. With glass is melted glass and the clear glass is better to keep it "clear", but with plastics, usually they recycle it into something different, like toys or industrial parts.