Hash (including WPFF bubble hash) is not an extract itâs mechanically separated trichome heads using only ice, water, and agitation, zero solvents, zero chemicals. An extract requires a solvent butane, BHO, CO2, ethanol, propane, etc. to dissolve the goods out of the plant. Live rosin is made by taking that same solventless WPFF hash and squishing it with heat + pressure, so itâs still 100% solventless, just a pressed form of hash. Thatâs exactly why every major competition (Ego Clash, Secret Cup, Rosin Dogs, Alchimia Cup, Hash Writer Cup, etc.) has three completely separate categories: Solventless hash, rosin, extracts.