Post Harvest Fermentation

Post-harvest fermentation refers to biochemical processes occurring in cannabis plant material after harvest, where enzymes and microorganisms break down chlorophyll, sugars, and other compounds. This process is distinct from intentional curing or drying and represents natural degradation pathways in stored biomass. Fermentation can alter terpene profiles through oxidation and microbial metabolism, potentially shifting aromatic compound concentrations over time. Breeders and processors study fermentation effects to understand how harvest timing, storage conditions, and material handling influence final terpene expression. Uncontrolled fermentation may introduce undesirable compounds or degradation products, while controlled fermentation protocols are researched for potential flavor or aroma modification applications.

Breeders working in strain preservation and seed banking monitor post-harvest fermentation to establish baseline terpene stability across generations. Understanding fermentation kinetics helps breeders select for cultivars with greater terpene retention during storage and handling phases.