Cannabinoid Thermal Breakdown

Cannabinoid thermal breakdown refers to the chemical degradation of cannabinoids (primarily THC and CBD) when exposed to heat during cultivation, drying, curing, or storage. This process can convert THC into CBN (cannabinol), alter cannabinoid ratios, and produce secondary volatile compounds that modify the plant's aromatic profile. The degree of breakdown depends on temperature exposure, humidity, light conditions, and storage duration. Breeders and cultivators monitor this phenomenon because it directly affects final cannabinoid composition and the terpene-cannabinoid interactions that define a strain's chemical signature. Understanding thermal breakdown is critical for seed preservation and accurate lineage documentation.

Breeders select for cannabinoid stability during stress testing and long-term storage trials to identify genetics that resist degradation. Seed banks and preservation programs track thermal stability as a marker of genetic resilience, informing breeding decisions for commercial cultivars intended for shelf-stable product lines.