First thing to note is that different brands of e-juice are fine to be mixed. Whether you like the taste of the mix is a different story. For most people, thoroughly cleaning their vapes every time they change e-liquid sounds like a lot of work. Is cleaning your tank between juices necessary? It doesn’t have to be.
If you’ve vaped your tank empty before changing e-liquid, it shouldn’t take long for the previous flavor to be completely flushed out. In fact, when vaping on similar flavor profiles, some of the in-between puffs might even be very tasty. But if the two juices are very different, chances are you are not going to enjoy the flavor mix. Here’s what you can do to save yourself some time.
Remove all e-liquid from the tank and take some short-duration puffs—this will dry up the wicks. Don’t take more than 3-4 puffs as a dry hit is lurking. If you are using a regulated device, lowering the wattage will give you some extra safety. With the wicks relatively dry, switching flavors will be much faster—although you might still have some mixed flavor puffs in between.
Another trick to remove the leftover flavor from your wicks is to blow into the mouthpiece of your tank while firing your mod. This will vaporize that last bit of liquid left. It’s a useful trick, but you’ll want to do it at a very low wattage to be sure you’re not going to burn your wicks in the process.
For users of rebuildable dripping atomizers, the process is even simpler. In fact, RDAs are the most efficient atomizers for flavor switching on the go. Just take the top cap off and blow on your coils while firing your device. You will notice that your wicks are drying up and turning white—again, don’t overdo it as you can burn them. Drip some of your new ejuice on your coils and vape on.
For even better results you can try vaping some base e-liquid between different juices. This works for both tanks and RDAs, and will get rid of lingering flavors more efficiently.