Shit you read all that? =) I'm pretty bad at telling where people's tongues are. I also just noticed you're a vendor here. Hi comrad! The temperature test will tell you what temperature it melts at and as long as nothing else is in there that melts at the same temperature that will tell you, however cuts are designed to fool people so what listed is a better way to test the purity of a drug. It should in theory works for BTH too, but BTH is more complicated since it has four intentional psychoactive drugs in it. Your profile says you sell china white. By making this claim you are stating that it is highly pure. If that is true you can take advantage of this situation by differentiating yourself from the vendors that make unverifiable subjective claims by posting an objective verifiable claim like "x% pure" for people to compare to. This will carry a lot more weight with people once someone verifies the claim. If you're interested I'll help you through the steps above to test it. I was thinking though.. if tomorrow when people read this they get a boner for all this geek talk, maybe we should hire the chemist who's selling his sr business to school us on this. I am just a hobbyist, that guy could really teach us all a thing or two! Nod