Water Activity Preservation
Water activity (aw) refers to the availability of water molecules in dried cannabis material, measured on a scale from 0.0 to 1.0. Proper water activity preservation—typically maintaining levels between 0.55–0.65 aw—is critical for maintaining volatile terpene profiles and preventing microbial growth during storage. Breeders and seed banks monitor water activity because excessive moisture accelerates terpene degradation and oxidation, while insufficient moisture can compromise seed viability over time. Cannabis genetics with robust terpene profiles are particularly sensitive to improper water activity conditions during curing and long-term preservation.
Water Activity Preservation strains
No strains tagged into Water Activity Preservation yet — they'll appear here as breeders submit lineage records under this aroma.
Water activity (aw) refers to the availability of water molecules in dried cannabis material, measured on a scale from 0.0 to 1.0. Proper water activity preservation—typically maintaining levels between 0.55–0.65 aw—is critical for maintaining volatile terpene profiles and preventing microbial growth during storage. Breeders and seed banks monitor water activity because excessive moisture accelerates terpene degradation and oxidation, while insufficient moisture can compromise seed viability over time. Cannabis genetics with robust terpene profiles are particularly sensitive to improper water activity conditions during curing and long-term preservation.
Seed preservation programs prioritize stable water activity to maintain genetic fidelity and terpene expression across generations. Breeders working with heritage or rare cultivars often employ controlled-humidity storage systems to ensure phenotypic consistency and reproductive viability in archived genetic stock.
Educational reference · Cultivar metadata only · No medical claims