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Glass

Glass is one of the oldest of the packaging materials So old, that collectors go around antique shops, searching for old beer and other bottles. Today, glass-making is a huge business and glass is a very popular choice for some foods.

The advantages of glass are:

you can see the contents clearly glass bottles and jars can be opened and resealed easily glass does not affect the taste of the food inside glass is impermeable, which means that liquids and gases cannot leak into or out of it some glass containers can be washed and re-used the raw materials used to make glass (sand, limestone, soda ash) are cheap and in plentiful supply used bottles and jars can be saved in 'bottle banks' and recycled in a furnace to make more glass

Can you think of any other advantages? What about the disadvantages? Can you think of any?

One of the problems with glass is its heaviness compared with other materials. Another is that glass can break.