Why Does E-liquid Turn Brown?


If you want some clarification about the reasons behind e-juice discolouration, you are at the right place. This blog will help you in this regard. Vaping has become increasingly popular in recent years as an alternative to traditional smoking, but one common issue that vapers encounter is the browning of their e-liquid.

Significance Of E-juice:

Vape liquid, or e-liquid or vape juice, is essential for vaping. It is the liquid that is heated and transformed into vapour, which the user then inhales. The importance of the e-liquid lies in its ability to provide the user with a satisfying and enjoyable vaping experience. Many vapers use e-liquids and vape kits to quit smoking, and the nicotine content in the vape juice can be adjusted to meet their needs.

Reasons Why E-liquid Turns Brown:

The e-juice like 88vape liquid is of utmost importance for getting a pleasurable vaping session, as this is one of the leading components. Regarding this matter, the discolouration might be an apparent cause of an unsatisfactory vaping experience. This blog will describe some crucial reasons behind the turning of e-liquid into brown colour.

  1. Steeping:

Steeping is the process of allowing the e-liquid to sit and age for a certain period of time, usually in a cool, dark place. During this process, the flavourings and other components in the e-liquid blend together and develop a more complex flavour profile.

As vape liquid steeps, it can turn brown due to the oxidation of the nicotine in the mixture. This reaction is similar to the browning of apples when they are exposed to air. The longer the steeping process, the darker the e-liquid may become. Sometimes, e-juices taste amazing after some steeping, but sometimes it might turn out to be the opposite.

  1. Nicotine Oxidation:

Nicotine is a sensitive compound that can quickly oxidise when exposed to heat, light, and air. As nicotine oxidises, it can turn yellow or brown, which can contribute to the overall browning of e-liquid.

  1. Caramelisation:

Caramelisation occurs when the sugars in the e-liquid are exposed to heat, causing them to break down and form new compounds that can contribute to the browning of the mixture. This process can also result in a sweeter, richer flavour profile.

  1. Coil Gunk:

When you vape, the e-liquid is heated by the coil in your device. Over time, the heat can cause residue from the e-liquid to build up on the coil of the Crystal Bar vape, forming “coil gunk.” This gunk can contribute to the browning of vape liquid and can also affect flavour and vapour production.

Effects Of Brown E-liquid: 

Brown e-liquids can have several effects on the overall vaping experience, including:

  1. Altered Flavour:

As the 88vape liquid turns brown, it can alter the flavour profile of the mixture. The oxidation of nicotine and caramelisation of sugars can result in a more prosperous, sweeter flavour, but it can also produce a burnt taste.

  1. Reduced Vapour Production:

Coil gunk and other residue buildups can affect the performance of your device, resulting in reduced vapour production and flavour.

  1. Harsher Throat Hit:

In the vape liquid, nicotine that has oxidised can result in a harsher throat hit, which can be unpleasant for some vapers.

How To Prevent Browning Of E-liquid:

  1. Store e-liquid properly: Proper storage is essential for preventing the browning of e-liquid. Keep your e-liquid in a cool, dark place away from heat, light, and air. This will help prevent nicotine oxidation and caramelisation.
  1. Avoid steeping for too long: While steeping can enhance the flavour of e-liquid, it can also contribute to the browning of the mixture. To prevent this, avoid steeping for too long, and always follow the recommended steeping time for your specific e-liquid.
  1. Clean your device regularly: Regularly cleaning your device can help prevent the buildup of coil gunk and other residues. This can help maintain flavour and vapour production and prevent browning.


To wrap up the explanation, it is stated that the discolouration of vape liquid is one of the leading reasons behind unpleasant vaping sessions. Therefore, the above-discussed are some crucial reasons with some recommendations to avoid this situation.

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