3 ms·
As I understand it, it's hard to keep coloured glass and other impurities out of the clear glass recycling stream, so the clear glass isn't clear any more. Colo
by frosted-flakes 6y ago
As I understand it, it's hard to keep coloured glass and other impurities out of the clear glass recycling stream, so the clear glass isn't clear any more. Coloured glass is just mixed together, which is why it's brown.
I would love to hear from someone who knows more.
- bena 6y agoI can see that. It's a good enough reason for me. In my head, I imagined it like boiling impurities out of liquid. Get the glass hot and melty, the impurities and glass separate due to different melting points, blah blah, blah. But if that doesn't happen and it doesn't affect the integrity of the glass too much, I can see the "Screw it" attitude of just letting it be.