E-liquid fungal risks???

[Randy C]

I know that nicotine kills just about everything, but as the industry evolves, we're seeing more and more naturally extracted fruits in eliquids. Do natural sugars from these fruits run the risk of fermenting or....growing yeast-when exposed to oxygen? And... If yeast can be produced. how likely is it that yeast could survive in a tank, Atomizer, rba, etc., and.... could it present any inhalation risks?

 

[glasseye]

This is from the EPA site. It's referring to PG in air sanitizers but I think it applies here. It seems it would be a hostile environment for bacterial growth. I haven't looked up anything in regards to 100% VG. I would guess if an extract had natural sugars, the main worry would be gunking up coils very quickly.

"There is considerable evidence that glycol vapors produce significant decreases i/n numbers of viable airborne bacteria under relatively wide conditions of relative humidity and temperature when properly and continuously dispensed by a vaporizing device so as to maintain suitable concentrations in the air of enclosed spaces.

With dispensers for the intermittent treatment of air, such as pressurized aerosols, several investigators have shown that glycols (triethylene, dipropylene, or propylene glycol) at concentrations of 5% or more in such formulations will temporarily reduce numbers of airborne bacteria when adequate amounts are dispensed under relatively ideal conditions."

 

[Gr8Scott]

This is from the EPA site. It's referring to PG in air sanitizers but I think it applies here. It seems it would be a hostile environment for bacterial growth. I haven't looked up anything in regards to 100% VG. I would guess if an extract had natural sugars, the main worry would be gunking up coils very quickly.

"There is considerable evidence that glycol vapors produce significant decreases i/n numbers of viable airborne bacteria under relatively wide conditions of relative humidity and temperature when properly and continuously dispensed by a vaporizing device so as to maintain suitable concentrations in the air of enclosed spaces.

With dispensers for the intermittent treatment of air, such as pressurized aerosols, several investigators have shown that glycols (triethylene, dipropylene, or propylene glycol) at concentrations of 5% or more in such formulations will temporarily reduce numbers of airborne bacteria when adequate amounts are dispensed under relatively ideal conditions."

Yes, exactly. I had a bunch of articles about the virtues of PG as an anti-fungal, anti-viral and anti-bacterial.

Gonna see if I can find 'em, will post back.

 

[tinkrrrbell]

PG is used in hospital HVAC systems to keep the air sterilized from airborn pathogens. Reason #1 in my opinion why it's rediculous to suggest inhaling it can be harmful. If it was, anyone who's worked in a hospital for more than 20 years would have symptoms of some kind from daily exposure.

 

[Kent C]

Naturally extracted fruit flavors aren't that 'new'. They've been doing it with food flavorings for quite a while AND they use PG and VG (and PGA and other stuff) as bases for the flavoring ... perhaps as a preservative so they don't have fungal and other problems. There is PG and/or VG in your cherry flavored toothpaste too. If there were a problem, the FDA would have stepped in long ago on the food industry.

 

[Randy C]

This is from the EPA site. It's referring to PG in air sanitizers but I think it applies here. It seems it would be a hostile environment for bacterial growth. I haven't looked up anything in regards to 100% VG. I would guess if an extract had natural sugars, the main worry would be gunking up coils very quickly.

"There is considerable evidence that glycol vapors produce significant decreases i/n numbers of viable airborne bacteria under relatively wide conditions of relative humidity and temperature when properly and continuously dispensed by a vaporizing device so as to maintain suitable concentrations in the air of enclosed spaces.

With dispensers for the intermittent treatment of air, such as pressurized aerosols, several investigators have shown that glycols (triethylene, dipropylene, or propylene glycol) at concentrations of 5% or more in such formulations will temporarily reduce numbers of airborne bacteria when adequate amounts are dispensed under relatively ideal conditions."

Ah... but Fungus is not bacteria.

 

[Randy C]

Naturally extracted fruit flavors aren't that 'new'. They've been doing it with food flavorings for quite a while AND they use PG and VG (and PGA and other stuff) as bases for the flavoring ... perhaps as a preservative so they don't have fungal and other problems.

Hi Kent, I didn't say natural extraction was new, just that more vendors are extracting these days, compared to the early days of synthetic flavored e-cigs. I'm just curious about natural sugars creating fungus- specifically yeast


There is PG and/or VG in your cherry flavored toothpaste too. If there were a problem, the FDA would have stepped in long ago on the food industry.

I've always believe this to be true as well, but now I am questioning this. I'd like to validate by taking a deeper dive into the science behind this assumption.

 

[Randy C]

Yes, exactly. I had a bunch of articles about the virtues of PG as an anti-fungal, anti-viral and anti-bacterial.

Gonna see if I can find 'em, will post back.

Again... this article mentions bacteria. No pun intended, but bacteria is a whole different animal than fungus. I'd love to check out what ever articles you can find.