David Jackson, Head of Marketing at Winnow David is a marketing professional of over 15 years working with brands like The Guardian, American Express and NGOs like Shelter and WaterAid. Winnow builds AI tech to help chefs run their kitchens more efficiently focusing on helping them understand and prevent food waste. Since launch 6 years ago Winnow has been deployed in 40 countries and has saved its customers $33m by reducing food waste. Kitchens using Winnow typically see food waste cut in half within 12 months, and chefs using Winnow are collectively saving 23m meals a year from the bin.