Decomposition Notes

Decomposition notes refer to earthy, funky aromas commonly associated with aged cannabis or certain microbial processing during fermentation and curing. These scents—often described as musty, moldy, or compost-like—can arise from specific terpene combinations, Penicillium species, or extended anaerobic storage conditions. In breeding contexts, some cultivators intentionally select for microbes and compounds that produce these darker, earthier profiles during post-harvest treatment. Decomposition aromas are distinct from intentional fermentation techniques like anaerobic curing, though overlap exists. Understanding these notes is important for distinguishing desirable aged character from unintended spoilage or contamination during preservation.

Breeders working with old-school or heritage genetics may encounter decomposition notes as a byproduct of specific terpene profiles or microbial communities. Conversely, cultivators breeding for clean, fresh aromatics often select against conditions that produce these characteristics during storage and curing.