UK retailers should sell fresh uncut fruit and vegetables without best before dates or plastic packaging, to stop 14 million shopping baskets worth of food from going to waste.
Waste Reduction charity Wrap reports that this would enable consumers to buy the correct amount for their needs, and to use their judgement to figure out when items are good to eat.
It has recommended that the UK’s major retailers “rethink” how they sell uncut fresh produce, specifically by removing plastic packaging and date labels, unless it is shown that they reduce overall food waste.
An 18 month study looked into the five most commonly wasted items - apples, bananas, broccoli, cucumber and potatoes - and how being stored in their original packaging, loose, and at different temperatures, impacted food waste.
The charity found that selling the five loose, and removing best before dates, could result in a combined yearly saving of around 100,000 tonnes of household food waste, more than 10,300 tonnes of plastic and 130,000 tonnes of CO2 equivalent.
Some supermarkets already sell items loose, but the new research presents further evidence that this practice should be extended across a wide range of fresh fruit and vegetables.
The study also confirmed that uncut fresh produce could be good to eat long after the best before date, and most items lasted longer in the fridge.
When stored at 40C, apples showed no signs of deterioration until two and a half months after their best before date, and were still good to eat for some time after that, researchers found.
Broccoli showed no signs of deterioration until more than two weeks after the best before date.
As a result, Wrap is recommending that retailers help shoppers understand the importance of refrigerating appropriate fresh produce below 50C at home.
Wrap said it had shared its findings and recommendations with the UK’s largest food retailers, but acknowledged that implementing them was “likely to take time”.
Wrap chief executive Marcus Gover said: “This important research could be a game-changer in the fight against food waste and plastic pollution. We have demystified the relationship between wasted food, plastic packaging, date labels and food storage.
“While packaging is important and often carries out a critical role to protect food, we have proven that plastic packaging doesn’t necessarily prolong the life of uncut fresh produce. It can in fact increase food waste in this case. We have shown the massive potential to save good food from being thrown away by removing date labels.
“We are all living with the reality of the climate emergency and the rising cost of living. This new clarity could not be more timely. We need retailers to step up and follow our recommendations so we can achieve real progress in tackling food waste and plastic pollution. This helps save the planet and us money at the same time - a real win-win.”
Wrap also published an updated list of key plastic items for UK Plastics Pact members to remove as far as possible by the end of 2022 alongside the fresh produce packaging, including plastic wrapping for multi-sales of tins, bottles, and cartons, PVC cling film, non-compostable fruit and veg stickers, non-compostable tea and coffee bags and single serving plastic sachets in restaurants.
Additional reporting by PA