Cold Storage

Cold storage classification refers to cannabis seeds and plant material preserved under controlled low-temperature conditions to extend viability and maintain genetic integrity. Breeders and seed banks employ cold storage protocols—typically between 4–15°C with controlled humidity—to slow metabolic activity and preserve cannabinoid and terpene profiles over extended periods. This practice is particularly relevant for rare or heirloom genetics where preservation between breeding cycles is critical. Cold storage can affect seed germination rates if improper thawing procedures are used, making documentation of storage conditions essential for breeding records. This classification indicates material managed under deliberate cryopreservation or refrigeration rather than ambient storage.

Breeders working with limited seed stock or rare lineages rely on cold storage to maintain genetic material across multiple seasons without degradation. Proper cold storage protocols ensure consistent phenotype expression and cannabinoid stability when seeds are eventually used in breeding projects.