Sterilize-and-reuse programs for glass bottles are excellent, but they are rare. In theory melting down used glass for inclusion in new glass production is an e

Sterilize-and-reuse programs for glass bottles are excellent, but they are rare. In theory melting down used glass for inclusion in new glass production is an energy win, but it seems to be rarely used in practice. About the best most glass "recycling" seems to do is mix crushed glass into gravel and paving materials.