Food waste apps do battle to turn leftovers into big business

Food waste costs businesses in the UK around £20bn annually

Elsa Bernadotte is a co-founder of Karma, a food waste app with 80,000 users in London

The best dish that Elsa Bernadotte ever picked up on Karma, a food waste app she co-founded in her native Sweden in 2016, couldn’t be more Swedish.

“It’s a typical dish of meatballs with mashed potatoes and a special sauce, from one of my favourite restaurants in Stockholm,” she says. “But it’s very popular – you need to be on your toes.”