The consistency of both are thick and sticky. Rosin is an extraction process that uses a combination of heat and pressure only. Unlike other concentrates such as wax, rosin is solventless. Wax is extracted using solvents, such as butane, alcohol, or propane. Sometimes, residual solvent is leftover in the final product, which may change the taste, flavor, and quality of the concentrate. If it is made properly, then all of the butane should be filtered out of the marijuana during the explosion process.
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