Tannin Content

Tannin content refers to the concentration of polyphenolic compounds present in cannabis plant material, particularly in flowers and leaves. These compounds are secondary metabolites commonly associated with astringency and taste profile in cannabis. Tannin levels vary across cultivars and are influenced by genetics, growing conditions, and harvest timing. Breeders working in this category often observe that higher tannin expression correlates with specific phenotypes within particular strain families. Tannin content remains an understudied aspect of cannabis chemotyping, with most research focused on cannabinoids and terpenes rather than polyphenolic profiles. Understanding tannin variation is relevant to breeding programs targeting specific flavor and sensory characteristics.

Breeders selecting for particular flavor profiles or plant astringency may inadvertently select for or against tannin-rich phenotypes through sensory evaluation and progeny testing. Tannin content also influences extraction efficiency and final product characteristics in breeding programs focused on concentrate or edible production.