• disco@lemdro.id
    link
    fedilink
    English
    arrow-up
    1
    ·
    2 days ago

    This might seem like a dumb question but couldn’t you burn the color out during the recycling process?

    • eleitl@lemmy.zip
      link
      fedilink
      English
      arrow-up
      9
      ·
      2 days ago

      It’s metal ions. You can compensate for iron with manganese, but you’ll still get a grayish glass with reduced transmission.