Rosin

Rosin is extracted mechanically — heat and pressure squeezing resin from flower or hash, no solvent involved. Its premium pitch is honest on its face: nothing needed purging, so residual solvents are a non-issue by construction, and good rosin carries excellent flavor. The price runs high because yields run low. Two grades matter: flower rosin (pressed from buds) and hash rosin (pressed from ice-water hash, the top tier). A COA still earns its place — potency and contaminant panels apply to solventless too, and “solventless” on a label is a process claim that testing turns into a fact.