Vapor Pressure

Vapor pressure in cannabis genetics refers to the volatility and evaporation rate of aromatic compounds (terpenes) from plant material. Strains with higher vapor pressure profiles tend to release volatile terpenes more readily at lower temperatures, affecting storage stability, processing outcomes, and the sensory profile during heating. Breeders and cultivators track vapor pressure patterns because terpene loss during drying, curing, or storage directly impacts the final aromatic expression. Lineage records frequently report that certain parent genetics contribute terpene profiles with notably different vapor pressure characteristics—some strains retain volatile aromatics longer under controlled conditions, while others show rapid terpene degradation. Understanding vapor pressure is particularly relevant for extraction specialists, hash makers, and cultivators optimizing preservation me

Breeders working in high-terpene and preservation-focused programs often select for genetics that balance aromatic intensity with vapor pressure stability. Strains bred for specific processing methods (fresh frozen extraction, dry sift, or cured flower stability) may be selected partly on terpene volatility traits that affect final product consistency.