Full Melt Phenotypes

Full Melt phenotypes are cannabis plants selected and bred for their ability to produce high concentrations of intact, viscous trichomes that remain stable during solventless extraction processes. The term originates from hash-making cultures where resin glands melt and fuse at relatively low temperatures, indicating purity and minimal plant-material contamination in the final product. These phenotypes are characterized by large, rounded trichome heads with thick stalks and high cannabinoid saturation in the resin layer. Breeders working in this category typically prioritize trichome morphology, resin viscosity, and extraction yield over other traits. Selection pressure focuses on maintaining dense trichome coverage and gland integrity across generations. Full Melt designation remains largely subjective and regional, varying by extraction method and quality standards.

Hash breeders and solventless concentrate producers actively select for Full Melt traits to improve extraction efficiency and final product quality. Phenotype stability and trichome expression consistency are primary breeding objectives in this category.