If it's started to taste 'burnt' or feels clogged/tight when you vape, then it's time to change your coil. We also recommend changing your coil whenever you fill you tank/pod etc with a different flavour, as even after emptying the tank the previous flavour will still be soaked into the wicking of your coil.

The length of time a coil lasts varies greatly from one person to another, and depends on a wide range of factors. As a rough guide, you can reasonably expect most types of coil to last for 20-30ml worth of e-liquid (2-3 x 10ml bottles).

Things that can affect the lifespan of a coil include (but aren't limited to) the flavour/strength of the e-liquid, the power output of the device your tank is attached to, how long your average puff is, how many puffs you take in a row, how well-maintained your tank is, and of course the type of coil you're using!