Hellmann’s testing temperature-detecting smart jars

Unilever’s Hellmann’s is testing a ‘Smart Jar’ design that will indicate fridge temperature, in a bid to reduce food waste.

By using temperature-sensitive ink, the design on the jar changes when in an environment below 5°C to reveal a hidden layer. Certain foods can last up to three days longer in a fridge set below 5°C (compared to 7°C), including milk – according to Hellmann’s, 3.1 million glasses of milk are wasted each day.

Rachel Chambers, senior marketing manager at Hellmann’s, said: “We know how important it is to make the most of the food you buy. At Hellmann’s we’re constantly looking to help consumers reduce food waste and save money and think Smart Jar is an innovative way to get people talking about – and solving – this massive problem.”

Catherine David, director of collaboration and change at Waste and Resources Action Programme (WRAP), said: “Every year more than 4.5 million tonnes of perfectly good food goes to waste in our homes, which could have been eaten. Incorrect storage is a key trigger for food going off and getting the fridge temperature right can help food stays fresher for longer.”

She continued: “I’m delighted WRAP has worked with Hellmann’s on this exciting trial. We need innovations like this pilot jar to help us make simple changes in our lives that will pay dividends.”