Closing time approaches, waiting staff collect plates littered with leftovers and chefs sweep up spoiled ingredients. This routine, repeated in restaurants across the developed world, means $80bn (£56bn) of food is wasted annually.
London-based startup Winnow is tackling the problem with its smart meter for food waste. Since opening in 2013, the business has saved its customers £2m and reduced carbon emissions from the hospitality sector by 3,400 tonnes.
Co-founder Marc Zornes, who researched food waste while working at business consultants McKinsey, says research into energy efficiency in buildings and cars attracts lots of money but there’s “hardly any investment into dealing with the issue of food waste”.