Two pieces of blue flint glass cullet


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Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Two pieces of blue flint glass cullet, 1968. Cullet is broken and scrap glass which is added to the melting furnace containing the raw materials used for making glass. It is a way of recycling scrap and speeding up the process of glass-making as cullet melts more quickly than new ingredients and therefore saves fuel. Cullet may be the only ingredient in the batch, but generally constitutes only 20-25% of the ingredients.


Glass Technology
Object Number:
Glastics Ltd.

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