Svalbard Global Seed Vault, Longyearbyen, Spitsbergen, Arctic Svalbard Archipelago, Norway

Seed storage
The seeds are stored in four-ply sealed envelopes, then placed into plastic tote containers on metal shelving racks. The storage rooms are kept at −18 °C (0 °F). The low temperature and limited access to oxygen will ensure low metabolic activity and delay seed aging. The permafrost surrounding the facility will help maintain the low temperature of the seeds if the electricity supply should fail.