Households have wasted the equivalent of a billion meals every day around the world in 2022, according to the UN. This estimate of edible but discarded food is rather optimistic and "the real amount could be much higher," says the United Nations Environment Program.

“We could feed all the people who suffer from hunger in the world – there are around 800 million – with one meal a day, just with the food that is wasted,” says Richard Swannell, of the NGO WRAP.