I now have several mods and tanks, and have found that coils tend to last much longer than I had anticipated. Because of this I find myself topping up my preferred Nic Salt liquids a lot.
I have noticed that most liquids remain clear for some time in a new or recleaned tank, and with repeated use become discoloured and darker. I assume this is from contamination from the coil being repeatedly heated.
I am beginning to wonder whether I should clean my tanks or change coils more often. However this discolouration of the liquid doesn’t seem to spoil the flavour. Eventually the flavour starts to disappear and this is when I clean everything out.
I am wondering if I am doing things wrong. I am a beginner and your comments on this would be welcome.
Is it OK to keep vaping the E liquid when it turns into a darker coloour?
It’s the carbon deposits and other crap that cakes up the wick and coil contaminating your liquid! If you are using rebuildables just clean the coil and re-wick or if it’s a stock coil then I would swap out if it’s contaminating your juice!
It’s completely normal for e-liquid to darken over time, especially with Nic Salt liquids, as the coil heats up and the flavors break down. The darkening usually comes from the coil’s build-up, but it doesn’t necessarily mean the liquid is unsafe. If the flavor starts to fade or taste burnt, that’s when it’s time to clean the tank or replace the coil. As a beginner, you’re on the right track by cleaning the tank regularly and replacing coils when needed. Just keep an eye on the taste and don’t worry too much about the discoloration unless it affects the flavor.
Older thread but keep in mind salts just naturally change color, especially if exposed to a lot of sunlight. Doesn’t change the flavor or affect the coil, just a natural thing. Sweetener is any coils/ wick natural enemy.
It’s perfectly fine to vape that darker color liquid. What you are seeing is oxydation of either the nicotine or the flavors. Probably both. I replace cotton about every 180 ml’s depending on the amount of sweetener used and loss of taste. While the cotton is removed I turn down the wattage and pulse the coils to burn off gunk then strum the coils to remove any burnt particles then flush the coil base in the sink. Rewick and prime the cotton.