Terpene Loss Post Harvest

Terpene loss post-harvest refers to the degradation and volatilization of aromatic compounds after cannabis flowers are dried and cured. Terpenes are sensitive to heat, light, oxygen, and time, causing cannabinoid-bound and free terpene pools to diminish during storage. Environmental factors—particularly temperature fluctuations and humidity imbalance—accelerate this process. Breeders and cultivators document terpene profiles at harvest versus weeks later to understand preservation challenges. Understanding terpene stability is central to breeding for robust aroma retention and to optimizing drying/curing protocols that minimize loss.

Breeders working in aroma stability research cross lines for terpene abundance and composition density, hypothesizing that higher initial terpene loads may retain measurable profiles longer. Cultivators rely on post-harvest handling science to preserve the terpene expression that breeders intended, making harvest timing and storage conditions critical variables in strain evaluation.