Post Harvest Aroma Degradation

Post-harvest aroma degradation refers to the progressive loss or transformation of volatile aromatic compounds after cannabis flowers are harvested and dried. Terpenes and other odorant molecules are chemically unstable and degrade through oxidation, heat exposure, light exposure, and microbial activity over time. Proper curing, storage temperature, humidity control, and packaging materials significantly influence the rate of degradation. Lineage records and breeder documentation frequently note aroma stability as a heritable trait, with some cultivars maintaining volatile profiles longer than others under identical storage conditions. Understanding degradation mechanisms is essential for seed banks, breeders, and cultivation researchers studying aroma preservation across generations.

Breeders working in aroma preservation and shelf-life optimization select parent plants with genetically stable terpene profiles and robust secondary metabolite production. Tracking aroma stability across seed generations helps identify cultivars suitable for long-term preservation in seed banks and commercial supply chains.