E-liquid colour

Why Does E-liquid Go Dark?

Published On March 1, 2015 | By Nicole | About E-Cigarettes Articles

Why Does E-liquid Go Dark?

E-liquid go brown. Have you ever noticed that E-liquid tends to turn darker after time? If this has never happened to you, then you might be wondering exactly what is going on. As it turns out, many people deal with this issue on a fairly consistent basis.

Some people have reported that their E-liquids will start out almost clear and change to a dark brown over just a short period of time after being loaded into a clearomizer. Others report this happening while the E-liquid is still in the bottle, leaving them wondering if it is even safe to consume.

Some people have even thrown out large amounts of E-liquid just because they didn’t want to risk taking a chance that it had gone bad – all while wondering what in the world could have caused it to turn dark like that to begin with.

Vape juice turns black

If this sounds at all familiar to you, don’t worry. There are actually a few very simple explanations – and you might be pleased to find that E-liquid that has turned a darker color is often just as safe to vape as E-liquid that hasn’t.

We’re going to discuss why E-liquid sometimes does this.

Vape liquid goes brown

Reason number one It caramelizes on the wick and/or wire

When you vape out of a clearomizer or tank, some E-liquids will tend to ‘caramelize’ on the wick and/or wire because of the higher heat levels. This caramelized E-liquid will turn dark, but it may also tend to ‘stain’ the rest of the E-liquid in your device – which will cause discoloration.

One way to avoid this is to make sure to keep your wire and wick both as clean as possible. If the problem persists, you might need to change them more often.

 Reason number two… oxidation

If your E-liquid tends to turn dark while it’s still in the bottle, there’s a good chance that oxidation is taking place. Air sometimes interacts with the E-liquid to cause very subtle changes over time, and sometimes these changes effect the color. The good news, however, is that this change very seldom effects how the liquid tastes or performs. It should basically work the same, regardless of a change in appearance.

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 Reason number three… oxidation in the tank

Oxidation can sometimes happen faster to E-liquid that is in your tank or clearomizer due to the higher levels of heat. The good news, however, is that this is rarely attributed to a design flaw in the device. This simply tends to happen to some different types of E-liquid, and shouldn’t really have any effect on your vaping experience.

Some E-liquids are actually more prone to darkening than others. If you’re vaping a very sweet flavour that has a lot of fruity-type ingredients in it, then you’ll probably be more likely to see it darken than if you were using a tobacco or menthol flavour. In fact, some companies actually put extra ingredients in their E-liquids to help keep the color from changing.

In one sense, having your E-liquid turn dark could be a lot like having an apple turn dark after it’s been peeled and left out for a little while. It could also be a sign that your E-liquid is more ‘natural’, and that it might even be healthier for you than the types that contain extra additives (this isn’t always the case, of course – it all depends on the E-liquid and the ingredients in it).

One thing that you might be able to do to help alleviate the problem is to try different E-liquids until you find one that doesn’t tend to turn colors in your device. Besides this, keeping your device clean, keeping the lid tight on your E-liquid bottles, and not leaving the same E-liquid in your device for too long are all ways to help keep your liquid from changing color.

If after doing this you still experience a changing of color from time to time, it might be best to just accept it and to recognize that it isn’t necessarily a problem.

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About The Author

Nicole It's my passion to do the research about familiar to me topics, especially when it comes to electronic cigarettes and the whole vaping industry as such. I hope you will find my content useful and when / if you do - please do share it! I will appreciate it! :) See our ''Who We Are'' page to find out more about me and my colleagues. Thanks and I look forward to your comments and feedback.

3 Responses to Why Does E-liquid Go Dark?

  1. peter says:

    But why the same liquid get dark in the one Tank but not in a another tank?

  2. Nicole says:

    Hi Peter, sounds like you need to change the coil for one of the tanks. It’s a result of whatever your coil has absorbed being infused into your e-juice. Take the bad tank apart and check the coil, I’m sure it will be all gunked up. Then change the coil, clean the tank and try again.

  3. grump says:

    the e liquid in my squonk bottle was darkening after just a few hours…. i was paranoid, but after reading this i think it is just caramelizing in the rda then this is getting sucked back in to my bottle when i over squonk. thankyou for your great advice.

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