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 almost 100 countries, Winnow is helping businesses like IKEA, Compass Group, Accor and Hilton save $85m a year via waste reduction. David is a marketing and communications professional of over 20 years working with brands like The Guardian, American Express and NGOs like Oxfam and WaterAid.