Recycled broken or waste glass used in glassmaking.
- 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.
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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