Much attention has been given in recent weeks to food waste in stores, thanks to an anonymous social media activist raiding the bins of major supermarkets. The TikTok and Instagram campaigner Food_waste_inspector_ has prompted investigations – not to mention a PR crisis – at Lidl, M&S and Waitrose by exposing large quantities of what appears to be perfectly good food in their store bins.

But while food waste in retail should of course be reduced to a minimum, it only makes up 2% of total UK food waste, alongside 16% in farms, 13% in manufacturing and 11% in foodservice, Wrap estimates.

The remaining 58% is household food waste. It’s not just by far the largest portion but also “the most difficult to focus on because it’s spread out across millions of homes”, says Caroline Conroy, senior specialist in Wrap’s food system transformation team.