I'm not sure that it's easy to separate out lead/cadmium from glass? I think I've heard that's also an issue with glass recycling in general. (certain though to

I'm not sure that it's easy to separate out lead/cadmium from glass? I think I've heard that's also an issue with glass recycling in general. (certain though to break kitvhen/glassware also contain lead - and can't / shouldn't be recycled along with single use glass bottles).