Maize is core to food security, rural development and poverty reduction in eastern and southern Africa (ESA). Lack of appropriate grain storage technologies results in significant losses due to post harvest pests, undermines food security, forces farmers to sell maize when prices are low, and blocks value addition and credit opportunities to poor households. The project targets and experimentally implements the "POSTCOSECHA" metal silo approach for improved grain storage in selected pilot areas and countries of ESA. It is supported by the Swiss Agency for Development and Cooperation (SDC) and draws on the highly successful experiences in Central and South America and the Caribbean. Apart from initiating the program in Africa, the project will provide SDC and other potential investors with conclusive insights on the viability, impact potential and actual scale-out pathway for a longer-term program in ESA.