Why does my vape crackle and spit hot juice?

That crackle is usually excess e-liquid on the coil. It happens when you over-prime or draw too hard. Let the device rest for a few minutes after filling, and take slower, gentler puffs.

How do I stop my vape from leaking in my pocket?

Keep the device upright. If you carry it in a pocket, make sure it’s in a vertical position and not pressed against keys or coins that could tilt it.

Is it safe to use a vape that leaks?

If the leak stays in the mouthpiece or around the tank, clean it and fix the cause. If liquid gets into the battery or charging port, stop using the device immediately—it could short-circuit.