Post Harvest Enzymatic Breakdown

Post-harvest enzymatic breakdown refers to the chemical transformations that occur in cannabis plant material after harvest, driven by naturally present enzymes. During drying and curing, enzymes continue metabolic activity, converting chlorophyll, starches, and other compounds into secondary metabolites including terpenes and cannabinoid precursors. This process is distinct from live-plant biochemistry and significantly influences final aroma, flavor profile, and chemical composition. Breeders and cultivators recognize that genetics influence enzyme activity rates, meaning some cultivars naturally undergo faster or more complex breakdown pathways. Controlled environmental conditions during post-harvest handling—temperature, humidity, light exposure—directly impact enzymatic efficiency and final terpenoid expression.

Breeders working with post-harvest optimization select for cultivars that express desired enzymatic profiles during curing, as this affects reproducibility of aroma and potency outcomes. Lineage records frequently report that certain parent genetics consistently yield specific curing aromas, suggesting heritable differences in enzyme expression and substrate availability.