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Why Does My E-Juice Turn Brown?

I've recently noticed that my e-liquid has turned brown, is this a problem? Can I continue to use it?
VapePenZone
VapePenZone

September 29, 2023

E-juice turning brown is a common occurrence primarily due to the following factors:

  • Nicotine oxidation

If your vape contains nicotine, nicotine can also cause the e-juice to darken over time. Nicotine is a natural alkaloid that oxidizes and turns brown when exposed to air and light.

  • Caramelization of sweeteners and flavorings

Some vapes contain sweeteners and flavourings that can also darken over time. These ingredients undergo caramelization, resulting in a browning effect.

  • Expired e-juice

E-juice has a shelf life, and using expired e-juice can lead to colour changes and alterations in flavour.

Please note that e-juice turning colour is generally a common occurrence and not typically a cause for concern.

However, to maintain the quality of your e-juice, store it properly in a cool, dark place and use fresh e-juice from reputable manufacturers.

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