For any legal age nicotine user, picking up your device to find the e-liquid inside has turned brown can be frustrating. For those who want to know why it may have happened and some of the things you might be able to do to help stop the problem from reoccurring, then read on.

Why Would E-Liquid Change Colours

Brown e-liquid in some devices may not necessarily be something to worry about. While the first instinct might be to throw the e-liquid away, that is not always necessary. That said, you should always follow manufacture’s guidelines and recommendations.

Oxidation- For adult customers who prefer a device with a tank, e-liquid can oxidize if exposed to harsh sunlight or extreme temperatures. This process can turn your e-liquid brown or an even darker colour.

When the coil heats up to vaporize the e-liquid inside, oxidation can also naturally occur over time. Once the e-liquid is inside the tank, and the device is switched on, the e-liquid heats up. Gradually with use, the liquid may begin to caramelize - changing the texture and colour of the liquid. Over time, you might notice that your coil & the cotton may start to form a sticky substance which can potentially cause the e-liquid to burn.

It is important to note that it may not be possible to stop oxidation from happening. E-liquid turning brown can be a normal and natural chemical reaction- part of the e-liquid’s aging process for certain vape devices. However, there are measures vape users can take that may help to slow this process down.

Agitation- This is a process that occurs when e-liquid is shaken in its container. Agitation can happen through normal transportation and can occur while you’re on the go.

How Can You Help to Prevent E-Liquid From Turning Brown?

To help keep your e-liquid in the condition intended by the manufacturer, there are some steps you can take to help. By ensuring proper care of a device and e-liquid, adult vape users can prevent their e-liquids from turning brown, and ensure their devices are working efficiently.

*Remember to always follow manufacturer’s guidelines and recommendations.

1. Avoid sugary e-liquids: Sugary e-liquids can turn dark faster compared to e-liquids without sugar due to the speed at which the e-liquid vaporizes. An e-liquid with a low sugar content or one that has no sugar can reduce the chances of the vape liquid turning brown in the tank.
2. Choose a high-quality e-liquid: Lower quality e-liquids may contain a poor blend of ingredients and generally might not work well with your device.
3. Avoid blending e-liquids: Even if you have two from the same brand, e-liquids are specifically designed to be used as intended by the manufacturer. Mixing e-liquids, amongst other things, can lead to oxygen contamination.
4. Carefully store e-liquid: Keeping the e-liquid bottles and your device upright may help to avoid leaks and agitation. Some manufacturers also recommend storing e-liquid away from direct sunlight and heat, and to store in a cool dark place to avoid oxidation. Ensure that after each use, the e-liquid is tightly capped, with some manufacturers recommending vape users to leave e-liquid sealed & unopened until ready for use.
5. Regularly change the coil: How often you need change your coil may depend on several factors (such as the type of your devices and how frequently you use it). While you should always follow manufacturer recommendations and guidelines, changing the coil regularly may help ensure your device works as it should.
6. Clean the vape tank frequently: This is good practice, and regular cleaning can reduce e-liquid sitting in your tank for long periods of time, which can help with e-liquid discolouration.
7. Check manufacturer’s advice: Your e-liquid will come with a label, or even a leaflet in the box containing what to expect, and how to best care for your e-liquid. Following the manufacturer’s guidance will help to retain the e-liquid’s integrity.

To learn more about e-liquids, read our articles on how to refill your vape tank, and what is e-liquid by following the links.

This article is for informational purposes only and does not constitute advice or guidance.