Vapes make all sorts of noises. Some of them can be concerning, but others are completely normal. The crackling sound you hear when you use your vape is a natural reaction to the vaporization process going on inside your vape. If you cook at home, you may have run cold water over a hot pan before, making a loud crackling noise and producing a lot of vapor. This is exactly what happens in your vape but on a smaller scale. However, if you hear your vape pop or make other unfamiliar noises, there may be something wrong. A popping vape could lead to spitting, which is when tiny droplets of hot liquid shoot out from the vape. This is a symptom of an issue with the coils or batteries not working properly to get hot enough to vaporize the liquid. Try troubleshooting the problem yourself or, better yet, bring your vape in to have a Kure associate take a look at it.