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Innovation

Knowing whether food has spoiled without even opening the container

A color-coded smart tag could tell consumers whether a carton of milk has turned sour or a can of green beans has spoiled without opening the containers, according to researchers.
The tag, which would appear on the packaging, also could be used to determine if medications and other perishable products were still active or fresh, they said.

This report on the color-changing food deterioration tags was presented today as part of the 247th National Meeting & Exposition of the American

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