Aflatoxin exposure from contaminated foods such as groundnuts affects an estimated 4.5 billion people living in developing countries and causes childhood stunting and around a quarter of all liver cancer globally. Twin has a holistic approach to removing the toxin from the diets of smallholder farmers in Malawi and is working to develop safe and profitable uses for contaminated nuts, including pressing for groundnut oil and processing into animal feed. Nuts are predominantly produced by women in Malawi and gender equality is integral to Twin’s food safety work.