Researchers from Strathclyde University are working on indicators made from "intelligent plastics" which change color when food loses its freshness.  They hope to have a commercially viable product available soon which will improve food safety and cut waste. The project is being supported with £325,000 in funding from the Scottish Enterprise Proof of Concept programme.  UK households are estimated to throw out about 8.3 million tons of food each year - most of which could be eaten.
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