We have currently been able to isolate THCA (Tetrahydrocannabinolic acid) to upwards of 99% purity with lab tests to confirm potency. We have only had success recrystallizing this compound to produce clear diamond-like crystals via the slow evaporation method. I would love to know if anyone could recommend a solvent that they may believe would be good to use for standard method of heating and cooling with a solvent that has poor solubility at room temperature, but dissolves THCA when heated. Thanks.