Propylene Glycol Demystified

Vapors across the globe are changing their blends. At the genesis of vaping (a few years ago), PG-heavy blends were in much higher demand. Advancements in vaping technology enabled vapers to inhale higher concentrations of e-Juice with each hit. The increased vapor intake kickstarted a sea-change in the kinds of juices customers were buying. A customer who used to buy an e-juice with 80% PG at 18 nicotine changed into a 20% PG blend with three nicotine. Why are vapers cutting back on propylene glycol?


If you read the ingredients on a tub of ice cream, don’t be surprised to find PG. This chemical is ubiquitous in the American diet. It is present in liquid sweeteners, coffee drinks, whipped dairy products, cake mix, soda pop, salad dressing, candy, and beer! Propylene Glycol is readily metabolized by humans and animals. Studies have shown no link to carcinogenicity, even in exaggerated conditions. As a fluid, it is watery and slightly sweet.

PG is harsher than VG. It brings more flavor, along with a more intense “throat hit.” Bigger clouds yield bigger throat hits, which leads to irritation in some vapers. Hence the switch to VG-heavy blends!  Many customers don’t realize that e-juice flavoring itself contains PG, so opting for more flavor shots is opting for a harsher e-juice. We find ourselves in a delicate balance between flavor intensity and smoothness of vapor. My advice would be to experiment until you reach your Nirvana.

Sometimes, irritation is confused for allergy. New vapers usually experience some uncomfortable effects when they switch to vaping, including headaches, excessive coughing, and occasionally “quit zits.” In some cases, a two-pack-a-day smoker will complain about throat discomfort when they make the switch. In the vast majority of cases, these symptoms fade away in a matter of weeks. There are recorded cases of propylene glycol allergies, but it is pretty rare. If you suspect you have a PG allergy, consult a doctor. This chemical is so prevalent in the products we use in our daily lives that a diagnosed allergy might require a radical change in lifestyle. If you experience irritation, lower your nicotine level and change to a heavier VG concentration.

We encourage experimentation. The right blend might keep you off cigarettes for the rest of your life. If there is a PG/VG ratio you’ve never tried, by all means, vape it! You may be surprised how different a flavor can taste in a different context.

Something to think about:

Vaping is becoming more and more socially acceptable by the day. You see more and more vapers blowing clouds behind the wheel, outside of bars, and walking the streets. This is because vaping is one of the fastest-growing sectors of the economy. Experts claim the vaping is a 2 billion dollar a year industry, and it is still growing. If you see a fellow vaper when you’re out and about, exhale a luxurious torrent and give them a thumbs up! This is more than an “alternative,” it’s a way of life.

Tim Mechling

Tim is Mt Baker Vapor's resident creative weirdo. He writes, composes music, draws, designs, produces podcasts, investigates, and blows the trumpet for the Common Man.

  • aikanae says:

    It’s also possible there is a level of tolerance the body can asorb and vaping PG all day tips this level of tolerance into a reaction; systemic or localized. It’s true there’s little reason to fear, but I’ve heard similar therories coming from other sectors of the market – beauty, sundries, cooking and there has been an alternative produced.

  • Rick says:

    I think it would help if you would put 9mg nic between 6 & 12.

  • >