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The study from Harvard involved the flavor chemicals added to the "juice" and the parent comment you're replying to mentions the same. Most of the people I've h
by intopieces 11y ago
The study from Harvard involved the flavor chemicals added to the "juice" and the parent comment you're replying to mentions the same. Most of the people I've heard of vaporizing cannabis do it with the plant itself, without this additive; I'm aware of another method that uses liquid or "shatter" but I don't think flavors are added to it. It's also my understanding that vaporizing this form is much more potent (being a concentrate) than other forms, which would point to non-diacetyl-related risk factors.
There has been some discussion around the safety of the heating elements themselves, specifically what happens when the metals get vaporized and enter the lungs/blood stream [0]
[0]http://www.abc15.com/news/local-news/investigations/are-e-cigarettes-safe-to-use-new-research-shows-metals-found-in-vapor-of-electronic-cigarettes http://www.abc15.com/news/local-news/investigations/are-e-ci...
- geoelectric 11y agoWorth noting that things like emissions from hot metal and (though you didn't mention it) keeping the air path away from things like circuit boards or plastics are considerations and even marketing points for high-quality cannabis vaporizers. Some use ceramic heating elements instead of metal for this reason as well. Edit: also worth noting that cheap no-name ones are frequently soldering iron elements housed in random plastic or wood cases and have no consideration for this whatsoever.
- fein 11y agoIn regards to shatter, or "dabs"; It's made by passing a gaseous solvent (often butane, ergo BHO or Butane Hash Oil) through the plant matter that rips the THC off the plant to gather in a waxy solid at the end of an extraction tube. If done correctly, and the butane is purged from the end product. In general its probably quite a bit safer than combusting plant material, assuming the person that made the BHO did it correctly. Most of the usage is done with a glass bong, with the metal "nail" used as a method of pressing the wax to the heated glass.
- intopieces 11y agoIt's not the heating element that worries me, but the ability to inhale significantly more THC a time. But my concerns stem mainly from observing the behavior of people who do this habitually and is not based on any scientific studies. I'm not sure that such studies exist yet.