Food packaging changes colour with food’s freshness

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According to America’s National Resources Defence Council, it’s thought consumers in the US alone throw around one billion pounds worth of food away each year, simply due to confusing labels. Many people still don’t know the difference between Best Before or Use By, and are often too scared to eat what is often perfectly healthy food due to the vague nature of labelling. But imagine if the food was wrapped in packaging that analysed the food and altered colour to indicate its health (or spoilage)? Enter Braskem, a Brazilian petrochemical company who has collaborated with Universities in both Brazil and…

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