Iso hash is the product of a isopropyl alcohol extraction. QWISO is an acronym for Quick Wash Isopropyl Alcohol hash, a popular technique for creating iso hash. Using alcohol as a solvent is incredibly cheap, however the flavour isn’t as comparable to other solvents/methods. The product depends on the quality of the cannabis and extraction. High quality QWISO often looks clear and yellow, like a shatter, with a malleable texture. Low quality iso hash is often green (from plant chlorophyll) or black, and gummy in texture
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