Full Melt

Full Melt refers to a classification system used primarily in solventless hash production, describing hashish that melts completely when heated, leaving minimal residue. The term originated in the cannabis concentrate community to grade bubble hash and other ice-water extracted products based on purity and meltability. Full Melt hash typically indicates higher concentrations of intact trichome heads with fewer plant contaminants, though exact standards remain informal across producers. Breeding programs focused on solventless production often prioritize plant genetics that produce large, resilient trichomes capable of clean separation during water extraction. This classification has become informally referenced in some breeding circles when selecting for trichome size, density, and structure—traits relevant to extraction yield and quality.

Breeders working toward solventless genetics often select for larger trichome heads, robust stalks, and resin profiles that separate cleanly during ice-water extraction. Plants bred for Full Melt-grade material typically show distinct trichome morphology under magnification, which informs parent selection and line stability work.