Chlorophyll Breakdown

Chlorophyll breakdown refers to the degradation of chlorophyll pigments during cannabis curing and post-harvest processing, a natural biochemical process that affects plant color and aroma profile. As chlorophyll molecules break down—typically accelerated by exposure to light, heat, and enzymatic activity—plants transition from green to brown, yellow, or other hues, and volatile compounds become more pronounced. This process is distinct from terpene production itself but closely linked to how aromatic compounds are perceived post-harvest. Breeders and cultivators often monitor chlorophyll breakdown as an indicator of proper curing conditions and phenotype expression. The rate and extent of breakdown can vary significantly between cultivars and growing conditions.

Breeders track chlorophyll breakdown patterns as part of phenotype characterization, since different genetics show distinct color transitions during cure. Understanding how a strain's pigmentation changes helps cultivators optimize drying and storage protocols to preserve desired aromatic and visual traits.