In ceramics and glassmaking, materials that have been fused together by heat to form a glass-like substance before final processing.
From Italian 'fritta' (fried, from 'friggere'), referring to the fusing process; adopted into English glassmaking terminology in the 16th-17th centuries.
Pottery glazes are made from frits because raw materials like lead would be toxic—fusing them first makes them stable, so all ceramic dishes you eat from are technically coated in 'fried glass.'
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