In Rwanda, 4 out of every 10 children suffer from chronic malnutrition and 1 out of every 10 children will die before the age of five. Most people cannot afford processed enriched foods. They grow cassava and take it to the miller to be ground into flour. Zing offers a way to bring the benefits of fortification to the small-scale miller through an add-on device that can accurately mix micronutrients into milled flours. The solution fits onto every mill, ensures uniform mixing and has minimal operating costs.