Did you know that every coffee bean has a story? Using nuclear techniques, scientists can trace its journey, from the rain that nourished the plant to the soil that nourished its roots. The IAEA, together with the Food and Agriculture Organization of the United Nations (FAO), helps countries use these methods to ensure the quality and authenticity of coffee. Learn how the University of Costa Rica is building a geographic database for Tarrazú coffee, helping labs around the world verify its origins and protect its reputation.