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Diacetyl, Acetyl Propionyl, Acetoin and Vaping

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Diacetyl, Acetyl Propionyl and Acetoin and Vaping

Introduction to Diketones

If you've been around the vaping industry for some time now, I am sure you have heard of Diacetyl, Acetyl Propionyl or Acetoin atleast once.  When we first started the process of creating this company we were doing a lot of research into vaping and from what we found these seemed to be the most questionable ingredients in the juices that are available.

Diacetyl and Vapes

Diacetyl was the first chemical that was found to possibly be harmful in large doses.  This concern started with a popcorn factory worker who developed "popcorn lung" which causes irreversible lung problems. This was found to be caused from high amounts of Diacetyl intake, which is what is used in buttered popcorn. In a popcorn factory a worker would be inhaling these fumes at a much higher right than in vaping, but it was a reference point for us to look at.

We consume a pretty large amount of vapor to our lungs on a daily basis as vapers, specially if you're using a sub-ohm vaping device. Not to the same degree as a popcorn factory worker, but enough for it to be concerning considering that we are vaping the e liquid and chemicals directly into our lungs instead of a second hand approach as seen in a factory.

The diacetyl amounts that have been reported in many of the popular liquids are well above the safety limit that has been set by OSHA. Even the amounts shown as "trace amounts" in juices are well above the suggested exposure quantities.

Diacetyl is also found in cigarettes in higher percentages than in vaping. In vaping we consider this an unnecessary exposure to chemicals that aren't required to create e liquid.

What is the purpose of Diacetyl, acetyl propionyl and acetoin? It's for flavoring purposes. They are flavoring chemicals which are used to create milky and buttery flavor notes. They're used to create thicker tasting flavors and many of the flavoring chemicals available from manufacturers use these chemicals in order to get the flavor profile they desire.

Acetyl Propionyl and Acetoin in Vape Juice

Acetyl Propionyl and Acetoin are the substitutes that arrived after the initial scare of Diacetyl and research suggests that these chemicals also can contain or convert themselves to Diacetyl. These were used to be safer alternatives to Diacetyl. These two chemicals are still considered lung irritants and their chemical composition is very similar to Diacetyl and is also considered an unnecessary additive.

Bottom Line

Recently, Dr. Farsalinos did a study that had the majority of the popular E-Liquids tested and 74.2% of them were found to contain Diacetyl or Acetyl Propionyl. Another study funded by Vapor Shark tested more juices and published all of the test results.

Vaping is still in the early stages of growth and these chemicals are the ones that have drawn the most attention. There is no fool proof study showing the effect that these will have upon us as vapers. Due to how long vaping has been around, long term exposure has not been tested, but there is enough research to show that it is not a direction we want to be heading in as E-Liquid manufacturers if we can avoid it.

The goal was always to create a product that removes all the questionable ingredients in vaping and get it as far away from cigarettes as possible. With no artificial sweeteners and no diketones, we believe we have done that.

All of this information and research points to the fact that diketones can potentially be harmful and should not belong in E-Liquid if it isn't necessary. Thus, The Clean Vape manufactures E-Liquid that is 100% Diacetyl, Acetyl Propionyl, and Acetoin Free.





Dr Farsalinos Study


1 Response

Gabriel Faria
Gabriel Faria

February 13, 2019

Hi, can you send me the Farsalinos study? the link is broken…. I’m doing a research of e-cigarettes at university, and one of my references are from him. More studies of him would be great.

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