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 answer is sweeteners and sugars, sweeteners is the number one coil killer in your e-liquids and if you find your self having to change coils often, you are most likely vaping a sweeter e-liquid that uses a lot of sweeteners, these sweeteners will caramelise inside you coils and build up gunk, this will result in both poor wicking as well as burnt taste overtime. So, even if you have a favourite E-liquid that you love, but you are finding yourself having to change coil constantly it might be worth trying another brand of E-Juice with less sweeteners.
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 better vape experience as well as better longevity 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 a “normal” lifespan of regular coil using sub-ohm e-liquids and about 5-10 refills on a pod using Nic Salts, however if you are using a very sweet e-Liquid you might only get 1-3days on Sub-Ohm E-liquids and only 3-5 refills on a Pod (depending on how much you vape). When your E-liquid starts tasting "funny" or burnt it is a sign that you need 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.
Another interesting side note: We think is worth mentioning is that the size of your tank can affect both the flavour of your e-liquid as well as the coil life. This is mostly true on Sub-Ohm higher wattage devices. However, 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.