Winnow develops Artificial Intelligence tools to help chefs run more profitable, sustainable kitchens by cutting food waste in half. Trusted by thousands of chefs in 67 countries, Winnow is helping businesses like IKEA, Compass Group and Hilton save 36m meals a year from the trash. David is a marketing professional of over 20 years working with brands like The Guardian, American Express and NGOs like Shelter and WaterAid.