(without reading the whole tread) what's a good pick these days for a clean, moderate priced 100mg nic?
NicVape...very clean indeed
(without reading the whole tread) what's a good pick these days for a clean, moderate priced 100mg nic?
Now MFS is making some interesting claims...![]()
Alchem’s nicotine is virtually clear and colorless, a result of its exceptional purity. Colored nicotine contains oxidized impurities, which not only impact the flavor, but also the effectiveness of nicotine. “Our liquid nicotine is produced in a pharmaceutical-grade, FDA-inspected facility,” Leduc continues. “The nicotine is extracted from tobacco leaves, giving it a preferred flavor and complete supply chain integration. It is also packaged in special containers to extend its shelf life and to avoid oxidation.”
So is MFS the first vendor to essentially fully disclose their source and it's credentials? Albeit indirectly ?
Discuss![]()
Probably they did not mean to, but using the NicSelect name in their blurb was a dead giveaway.
The main issue currently is the biodiesel byproduct problem; specifically the jatropha plant issue. Biodiesel production involves the use of multiple plant sources and these include jatropha in the modern era. Glycerine is produced as a by-product, along with diesel fuel. The problem is that jatropha is toxic to humans: its esters are carcinogenic.
For this reason biodiesel by-product glycerine absolutely MUST NOT be used for vaping-use glycerine. However this is easier said than done: no one really knows if this condition has been met unless the finished retail product is tested for the carcinogenic phorbol esters of the jatropha plant. As hardly any e-liquid vendors either test properly [4], or know how to test for this contaminant in any case, it is a genuine and serious issue.
The FDA have warned about this and a web search reveals multiple resources, including:
http://www.fda.gov/InternationalProg.../ucm311479.htm
How to obtain jatropha-free glycerine
Because the supply chain in the e-liquid world is based on word of mouth ("My supplier told me this is the highest quality") and overseas certificates of dubious quality, it is impossible to eliminate the possibility of contaminated glycerine unless (a) a reliable test certificate is presented, or (b) the source is unimpeachable.
A 'reliable test certificate' is not one that originates overseas, it comes from a nationally-accredited testing laboratory in your country, and it states specifically on it that jatropha was one of the contaminants tested for. Alternatively a reliable source is needed, such as a pharmaceutical supplier who can provide (not tell you about) pharmaceutical licenses for inhalation duty; the safest at this time is probably Dow Chemical's Optim product, a synthetic glycerine of about 99.9% purity (nothing is 'pure'; the contaminant here is likely to be water). This has multiple licenses for inhalation and Dow advise its use for medical inhalation in preference to their pharma grade PG (which used to be the most popular for e.g. asthma inhalers, but is now losing out to glycerine as there is no drying-out of the throat and upper lung area that some experience with PG).
E-liquid manufacturers can obtain Dow Optim in 4-gallon containers in the USA. It is not cheap - but there is no good, cheap e-liquid since this is impossible (testing is expensive and/or good materials are expensive, and qualified chemists are expensive to employ).
A practical alternative, to be used until such time as manufacturers provide full test details or are regulated by government in order to prevent the inclusion of contaminants (very likely and probably desirable if the industry will not solve the problem themselves), is to obtain your glycerine-based e-liquid from a manufacturer with a multi-million turnover and a very good reputation. This is because (a) regular full testing is expensive and small-scale vendors simply cannot afford it unless they are members of a trade association that handles the testing for them at a discount, and (b) a large-scale vendor with a very good reputation that would be completely destroyed if they were exposed for selling contaminated materials is a good bet, since they will probably be taking steps to ensure such an incident does not occur as they have a lot to lose.
Conclusion
Inhalation of acrolein is unlikely to be a problem, for practical reasons, together with the fact that people will be aware they are inhaling smoke not vapour. It is impossible to remove trace contaminants, but these are not seen as clinically significant here since they are universally present in all consumer products and impossible to remove completely.
Lab tests that show quantities of acrolein just above the trace level are very likely indeed to have been conducted using protocols that do not represent normal usage. There is a sufficient evidence of this, and in contrast for correctly-run tests that did not produce such a result, that such results can be ignored as not having relevance to normal use by a human operator.
Maximum risk reduction is something that many people will consider pointless, although it may be of interest to some. For example, it seems unlikely that any contamination of e-liquid within normal parameters could be expected to elevate risk beyond about 99% less than that of smoking; it seems a reasonable bet that no matter what level of contaminants is present, within a reasonable range, vaping cannot be anything other than so much safer than smoking that there is no comparison. On the other hand it is equally possible that vaping could be made 10,000 times safer than smoking, assuming you felt it worth the trouble of examining every factor for risk and then taking steps to reduce any perceived elevation of risk.
You're the best, thanks much!
Ah crap....good point! I was so concerned with my DIY stock that I didn't think about the nic base. . . .Now you guys gave me rethinking buying my nic in vg base. How do I know it's not the questionable kind?