Post Harvest Cannabinoid Conversion

Post-harvest cannabinoid conversion refers to chemical changes in cannabinoids that occur after harvest, primarily the decarboxylation of acidic cannabinoids (THCA, CBDA) into neutral forms (THC, CBD) through heat, light, or time. This process is not controlled by genetics alone but influenced by drying methods, storage temperature, humidity, and exposure to UV radiation. Breeders and cultivators study how different cultivars' cannabinoid profiles shift during typical post-harvest handling to understand final product composition. Accurate lineage documentation requires distinguishing between in-plant cannabinoid ratios and post-harvest converted profiles, as raw material cannabinoid content differs significantly from cured or decarboxylated material.

Breeders working with cannabinoid-focused cultivars track both acidic and neutral cannabinoid expression to predict final product potency and profile stability across standard curing protocols. Understanding a cultivar's conversion rate informs breeding decisions for consistency in commercial supply chains.