This document discusses different types of seed storage. It describes bag storage which uses waterproof warehouses and follows sanitation practices. Bulk storage also meets basic requirements but requires more insulation. Seeds stored in bulk need frequent turning to prevent deterioration. Conditioned storage carefully controls temperature and humidity but is costly. Cryogenic storage places seeds in liquid nitrogen at -196°C for long-term preservation. Hermetic storage seals seeds in air-tight containers. Containerized storage uses desiccants to regulate humidity in closed containers. The document concludes by outlining preferred long-term storage conditions of -18°C or less in air-tight containers at 3-7% moisture.