Message of a bottle

Published: 23 July, 2008

Do you know how glass is made? Sorry? Yes, it's got sand in it. Anything else? No? A straw poll among the Harpers team certainly showed up our manufacturing ignorance, but many people seem to take for granted the vessel that protects and contains the precious liquid that we spend most of our time writing about. If you'd like a full breakdown of what goes into glass, rather than what goes inside it, then see below. In a nutshell, it's a mixture of sand, limestone and soda ash.

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