Having excess citric acid really messes up dosing. That's why HCL or vinegar is preferred. They evaporate away leaving no free acid behind.
Mescaline HCl is a white powder, very dry, brittle.
Mescaline acetate is a white waxy material, similar to freebase DMT.
The reason the mescaline acetate from most techs is brown or amber is because of the other alkaloids and impurities present. It would also be less sticky and easier to dry if the other impurities were removed.
I wish I knew of some way to clean the mescaline acetate of the impurities.
Mescaline HCl is insoluble in 99% acetone, and insoluble in 99% IPA, so it’s very easy to clean with those two solvents because only the impurities are soluble in those solvents. Mescaline acetate is soluble in both solvents unfortunately, and so are the impurities.
I believe the polarity of mescaline acetate is lower than the polarity of mescaline HCl. Out of all the alkaloids, I believe mescaline is the most polar, and that’s why mescaline HCl can be cleaned with acetone or IPA. With that in mind, mescaline acetate is very likely more polar than the other acetates. To clean it, you’ll likely need a solvent less polar than acetone or IPA which is just polar enough to dissolve the impurities but not polar enough to dissolve mescaline acetate. Such a solvent could be a binary solvent. For example, maybe a mix of 50:50 of IPA and d-limonene might work.