Post Harvest Terpene Degradation

Post-harvest terpene degradation refers to the loss and chemical breakdown of volatile aromatic compounds after cannabis flowers are harvested. Terpenes are unstable molecules sensitive to light, heat, oxygen, and time, causing measurable decreases in profile complexity during drying, curing, and storage. Lineage records and breeding documentation frequently track terpene retention across cultivars, as some genetic backgrounds maintain aromatic volatiles more effectively than others. Proper environmental control—cool temperatures, darkness, and low humidity—slows but does not eliminate degradation. Understanding this process is central to seed preservation, cultivar documentation, and breeding programs focused on chemotype stability.

Breeders working in preservation and seed banking consider terpene stability as a heritable trait, selecting parent plants from lines known to retain aromatic profiles across multiple generations and storage conditions. Cultivar documentation projects monitor terpene loss rates to establish baseline expectations for strain families and inform growers about realistic post-harvest chemistry.