How long should a coil last?
This is a common question that we get, and the answer is not always a straight forward one. Coil life varies depending on how much you vape and more importantly, what type of e-liquids that you vape.
I heard that higher VG E-Liquids will kill my coils quicker is that true?
Despite of what a lot of people think, VG is not the main coil killer in your e-juice, but you need the right coils. Higher VG e-liquids are thicker and therefore need coils with larger wicking holes. If your coil does not have large enough holes the liquids will not reach the cotton, and as a result you will burn the cotton inside the coil. However, whilst higher VG e-liquids require coils with larger wicking holes to wick properly, higher VG e-liquids will not gunk up your coil quicker than lower VG E-Liquids.
So if it is not the VG that is killing my coils what is it then?
The short answer is sweeteners. Sweeteners are the number one coil killers in your e-liquid and if you finding yourself having to change coils often, you are most likely vaping a very sweet e-liquid. This is because the sweeteners in the e-juice will caramelise inside the coil head around the actual coil wire, this will build up gunk and as a result you will get both poor wicking and burnt taste. If you are vaping an E-liquid and find that you are having to change coil constantly, it might be worth trying another similar flavour from another brand that is less sweet.
So, is sweeteners the only thing that affects the coil life then?
No, sweeteners are not the only thing that will affect the lifespan of your coils, there are other factors that can affect the coil life as well. If you are using a regulated device where you can manually set the power output “wattage” you might be using too high or too low wattage for the type of e-liquid that you are using. Try adjusting the wattage to see if you are getting a batter vape experience as well as better life out of your coils.
OK I hear you but in general how long should a coil last.
We would say that 1-2 weeks is the “normal” lifespan of a coil, however if you are using a very sweet e-Liquids you might only get a couple of days or even less. To be honest, time is also not the best measurement, lest take Nic Salts as an example. When vaping Nic Salts it is more accurate to calculate the amount of E-liquid each coil or pod lasts. An average Nic Salt coil/pod usually lasts for about 10-20ml of refills, unless the E-liquid is very sweet. You will easily be able to tell when it is time to change coil as when you E-liquids starts tasting funny, or burnt it is time to change the coil.
Any recommendation on e-Liquids for good coil life?
This is a hard one as taste is very subjective, but I use Kai’s Virgin Vapor on a regular basis. All Kai’s Virgin vapor e-liquids are 100% VG, and yet I get the best coil life out of their fruit flavoured e-liquids. Razzmatazz is an all-time favourite of mine and I can go 2-4 weeks on a coil without problem if the coil that I am using have large enough wicking holes. The reason for the good coil life on Razzmatazz is that all Kai’s Virign Vapor’s e-Liquids are free from artificial sweeteners, so there are no build-ups of sweetener gunk on the coils.
Side note: We think is worth mentioning that for Sub-Ohm vapers, the size of your tank can have an affect on your coil life. In the UK/EU we are limited to 2ml capacity on all tanks due to the TPD regulations, luckily most tanks have an option to buy an extension glasses to expand the size of your tank. Sometimes getting an extension glass for your tank can extend the life of your coils and improve the flavour of you e-liquids. This might sound strange but a larger tank with more e-liquid will run “cooler” than a smaller tank, and as a result you e-liquid will stay in a better temperature before reaching the coil to get evaporated.