The most common mistake we see is treating a new device like a fountain pen. You fill it, then squeeze extra drops straight into the coil or mouthpiece to 'help it along.' That just floods the coil with more juice than it can vaporize. The result: gurgling on the first puff and sometimes a mouthful of warm liquid.

Let the wick do its job. After filling, wait two to three minutes for the cotton to soak up juice naturally. If you’re using a refillable device, a full tank is fine, but don’t force extra drops into the center airway. For disposables, they come pre-primed, so no extra action is needed. If you’ve already over-primed, take a few dry puffs without pressing the fire button to pull excess juice through, then wipe the mouthpiece.