Recycled broken or waste glass used in glass-making.‘It goes without saying that the broken glass or cullet used had to be of the required colour or clear, so that no expensive new minerals were added to colour it.’
- ‘One of our earliest industrial containers, glass is made by melting sand, soda ash, limestone, and cullet (recycled crushed glass) in furnaces heated to 2,700 degrees Fahrenheit.’
- ‘Approximately 80 per cent of the glass now being made in Irish Glass is from cullet or recycled glass.’
- ‘Ireland does not have another manufacturing facility with a similar capacity to absorb glass cullet (crushed glass).’
- ‘For some purposes, it is possible to make glass entirely of cullet.’
Early 19th century variant of collet, in the obsolete sense ‘glass left on the blowing-iron when the finished article is removed’.
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