Hey I added you because I was intrigued by a few posts of yours. Basically Google led me to this site a couple days ago when I was conducting a search on BHO purging. I did some snooping, and it seems you really know some chemistry. You've got a great methodology in general. Now that being said, I can pretty easily tell that you're against using solvents for extraction, which of course is totally logical. Solvents are dangerous -- not only in the process, but also in the product. Carcinogens are no good, and neuropathogens such as inhaled butane are no good either. Given that I respect the dangers, I wanted to say that I do believe that if one is going about it the right way, one can remove solvents well enough to render the product completely safe for use. Do you agree? I would value your input. Putting aside your dislike for butane extraction, do you think it's possible to do a really good job with purging? I get the impression that most do not realize how important a good purge is,