Butter Flavor?
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I would be extremely wary of any buttery or custard flavor at this point.
Diacetyl is used in many buttery flavorings, and has been linked to permanent destruction of lung tissue among some who have breathed it regularly. Many companies are substituting other chemicals for it, but those could be just as bad for all we know.
Occupational Exposure to Flavoring Substances: Health Effects and Hazard Control
There are many other references to these chemicals on the internet, as well.
I have not tried any flavoring that compares to butter, so I can't say much about what's good.
Diacetyl is used in many buttery flavorings, and has been linked to permanent destruction of lung tissue among some who have breathed it regularly. Many companies are substituting other chemicals for it, but those could be just as bad for all we know.
Occupational Exposure to Flavoring Substances: Health Effects and Hazard Control
There are many other references to these chemicals on the internet, as well.
I have not tried any flavoring that compares to butter, so I can't say much about what's good.
Good, don't read this then... The Flavorist Workshop
(As an aside, I use custard flavorings myself and could really care less about having some of the dreaded big "D" in my juice, but to each their own.)
I read that before but I wasn't able to find those other substances in the flavor's ingredients. Is it just not listed?
The flavoring chemicals, be they naturally or artificially derived, are only listed a natural and/or artificial flavoring, as Hoosier pointed out.
Companies are only required to list that flavorings are present. What chemical(s) make up the flavoring is a trade secret, so they will not divulge that info. We have gotten some of the manufacturers to tell us if a certain chemical is present in their flavorings, because of safety concerns.
AFAIK, the Perfumer's Apprentice has been very accommodating to our community when it comes to these types of concerns, so I'm most comfortable with them. Bottom line is that we don't know what we are consuming when it comes to flavorings, and only time will tell if any of them have serious detrimental effects. This is one of the big reasons that I DIY, as I can know a bit more about my e-juice this way, but there is still much that is unknown.
I'd advise you to do some research on the issue, and decide for yourself how many precautions, if any, that you should take. Personally, I avoid any obvious suspects, since there is a fair amount of convincing evidence that diacetyl, even in some food products, can cause serious health problems. Is it a serious issue with the amounts that an average vaper would inhale from an average e-juice? I don't know. I'm not attached enough to those flavorings to care to find out. I'm willing to take the gamble on most of the rest.
Sorry to be a big bummer, but I tend toward the 'better safe than sorry' philosophy these days. More often than not, at least.
The concentrations shown in this it might just be hazardous, or maybe the person was exposed to something else that caused the one worker problems. "In one plant with an affected worker, the average mixing area air concentration of diacetyl was 0.2 ppm, but real-time monitoring in a worker's breathing zone revealed peak levels of 80 ppm during a process where liquid butter flavor was poured into heated mixing tanks"
The minute amounts I use in my vape are similar to any one of the many ingredients I eat or drink as part of my daily life. They will cause cancer with more exposure than I will have over my lifetime as I am not mixing large quantities over a heated mixing tank. I don't plan on using 80 ppm, much less 02. ppm.
And it's a heck of a lot safer than lighting tobacco on fire and inhaling it.
"It also occurs naturally in some foods (e.g., dairy products, wine, and beer) (17, 18, 19), and may be found in other types of flavorings." I am not going to panic, and I will continue to drink milk, eat dairy and occasionally have some wine and drink some beer. And I will continue to vape the minute amounts that MAY be present if it keeps me happy and off the tobacco. I just HATE fear mongers. YMMV
The minute amounts I use in my vape are similar to any one of the many ingredients I eat or drink as part of my daily life. They will cause cancer with more exposure than I will have over my lifetime as I am not mixing large quantities over a heated mixing tank. I don't plan on using 80 ppm, much less 02. ppm.
And it's a heck of a lot safer than lighting tobacco on fire and inhaling it.
"It also occurs naturally in some foods (e.g., dairy products, wine, and beer) (17, 18, 19), and may be found in other types of flavorings." I am not going to panic, and I will continue to drink milk, eat dairy and occasionally have some wine and drink some beer. And I will continue to vape the minute amounts that MAY be present if it keeps me happy and off the tobacco. I just HATE fear mongers. YMMV
The amounts we're talking about in juices of diacetyl (if it even still exists in some juices, vendors have gotten pretty smart about that), or the other substitute custard ingredients (which are practically identical, if not marginally more dangerous) is, I'm sorry to say, well over the amounts you quoted. One vendor had one of his juices tested and it contained 1/4 of 1% diacetyl, which equates to 2,500ppm. Another flavoring I know contains 1.6% acetyl propionyl, which, if mixed at 10%, gives a concentration of 1,600ppm. Also, ingesting these compounds can NOT be compared to inhaling them in large concentrations.
However, there's a lot of conditional differences between working in a popcorn factory and vaping. Not to mention there are other mitigating factors that may have increased the harmful effects of the diacetyl the workers were exposed to. Not to diminish the harmfulness of custard ingredients, they have been proven to be harmful and sometimes fatal to laboratory animals; but we are not being subjected to the same conditions that laboratory animals or factory workers are being subjected to. Just about every factor of our exposure is different, from temperature, to duration, to interval. The only similarity is that we are inhaling it in large concentrations. Does that mean it's safe? No, not at all. It's like saying that bullets are dangerous and could be fatal if they hit you, but only if they hit you at a high rate of speed, such as when fired from a gun. If someone throws a bullet at you from 10ft. away you're gonna be fine. What we don't know is if the bullets we're being hit by are being thrown at us or fired from a high powered rifle. Until we know the answer to that, I'm choosing not to vape it. Doesn't mean I'm telling you not to, or trying to fear monger, just adding more info
So, you HATE people like me who choose to inform others of possible hazards that they may not know of, and provide links to factual information that has apparent relevance the the situation at hand. I find that somewhat offensive, but I can live with it. Call me a fear monger if you wish, but I'll not stand idle when I see that someone may not be informed about something that I feel is important for people to know. I merely said that I'd be wary of such flavorings, and presented some information. You may do with that as you wish.
I do, however, disagree with the act of thoroughly discounting someone's cautionary message because of said unwarranted hatred, while providing what sounds like vague and incorrect notions of the subject matter. Please at least try to stick with studied and published material, when available, when presenting information for others to consider, and not state opinions as fact.
I disagree with your statement that inhaling chemicals known to cause bronchial obliterations is safer than smoking, but I fully support your right to do whatever you want with your body. It is apparent to me that many people here want to mitigate the risks associated with their nicotine habit.
Please have a pleasant day.
Seems like we don't really know if we are inhaling large concentrations or not. The numbers don't really help much. One vendor's juice contained .25% and the air in a popcorn worker's station contained up to 80 ppm. It would be more useful to know what concentration the popcorn flavoring had; as a liquid, before it got into the air. An even better thing to know would be the concentration in the vapor produced from the juice vendor's liquid.
Either way, the safest thing to do is to avoid it... but I still use it occasionally in small amounts.
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