The process is supercritical CO2 extraction (I'm 95% certain of this), which is incidentally the way I'd do it if I were going into business. It carries some persuasive advantages over more traditional extraction techniques.I just skimmed that thread quickly but maybe I will show up and make some posts next week... You can pass this info on to them for me if you want though:
The WTA is made by a trained chemist. The process is proprietary so I don't plan on sharing it with anyone. There are factors outside of the extraction process that are still being fine tuned, for instance scaling up production to meet industry-wide demand; therefore I haven't gone through rigorous testing for things like TSNA's yet. I expect the product to at least meet the GothiaTek standards (for snus) if not to be eligible for some sort of "reduced exposure" or "modified risk" classification, though the FDA has yet to set guidelines on these. Eventually I will post the results of testing for the 44 "Hoffman analytes" and/or other possible carcinogens listed by IARC. If I had to guess the safety of using WTA eliquid is somewhere in between vaping alone and vaping + using snus.
He appears to be aware of some of the ways one might look at the safety of the product, example the "Hoffman List" which covers some organic and inorganic components of cigarette smoke.
The thing I can't get from Ethan's response is whether his WTA will be a tobacco extract or a WTA isolate. The two are in some ways very similar (They both would contain the WTA's) and in some ways very different (an isolate eliminates non alkaloidal co-extracted materials, whereas an extract would not). A supercritical fluid extraction can be "fine-tuned" via varying the pressure of the SCF at or above around 80 atmospheres, so I suspect Ethan will be having the chemist working with him looking at fine tunings of the process to recover alkaloids preferential over non-alkaloidal co-extractants if such is possible. Still, to achieve an isolate, it requires some good old fashioned separation chemistry. I would prefer to see the product being an alkaloid isolate as this would contain a far smaller chemical soup than simply a tobacco extract.
Economically, an extract would be far easier to produce and mix (FAR less work) and would probably have a very tobacco-ish flavor, and I agree with Ethan that the safety would be between that of smoking and snus. Just where on the in-between scale, I can't say. On the other hand, an alkaloid isolate would also sit between smoking and snus on the safety scale, but likely far more toward the snus end of the scale than the smoking end of the scale. Of course, the isolate would not have the tobacco flavor of an extract, but hittman, myself, and a few others will say that the taste of the isolate alone in just PG/VG with nothing else does feel like a cigarette in the throat, it's got that tobacco alkaloid "tickle".
At any rate, first glance at Ethan's response would suggest he's for real, and we'll look forward to seeing what he comes up with. I'm encouraged!
(But if he bills himself as the creator of the concept, I'll take him for a scrape over the coals!
WTA, my baby!)
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