Oh I missed that link somehow ;-). Had found that from ECF forever ago (before VU existed) as well. Just couldn't remember the source ;-)
Edit: I also don't believe this source fully explains the issue nor discloses exactly what we should expect with the nicotine that we are handling.
The study references pure > 99% nicotine which is ~990mg/ml or greater nicotine concentration. The effect of storage in PG/VG like we tend to use in 100mg/ml nic could be drastically different.
I referenced ECF for a reason here, it's because this issue has been beat to death there. I have no love for ECF.
I also referenced Jake from
@Nude Nicotine cause the guy is a fucking chemist that handles nicotine in PG and VG bases for a living.
That all said, after causing such a stink about this, I'm glad you are content with the research from a single sentence of an article from a 20 year old research study.
Really the most relevant piece from that article, unfortunately, still relating to pure nicotine and not a PG or VG based solution.
Personally, while we know that freezing is good, I'd love to know if Jake has done any personal research on this end directly relating to the levels of nicotine we are working with in the bases we are working with.