The process of breathing a liquid is when you take a juice that is freshly made and open the bottle, take the nipple or dropper off the top, and let it sit in a dark place for about 12 hours at most. If you let the ejuice sit longer, this tends to lesson the flavor and throat feel most want. Now for those who do not want to wait a week or more for a flavor, and get their ejuice freshly made, there is a process called streathing which can be more difficult and annoying, but it works.
Steeping is when you take the bottle of eliquid after purchase and sitting it with a closed cap in either a dark box or dark spot wherever you are over a particular amount of time. The reason you want to do this is because if the flavor doesn’t completely taste the way it should in the beginning of vaping it then it has been previously just made and the flavors haven’t settled properly yet. Generally if you want to steep it for a minimum amount of time you would sit it about a week but every couple days shake it so you mix the flavorings with the vegetable glycerin up. If you want to steep it further some ejuices can really come out great and be to their full potential and if you have juice to last for the time you steep then you can steep it for 2-3 weeks or more.
The process of streathing is when you take the bottle with the cap/dripper and nipple off and let it sit open in the dark for a few days. You then shake the bottle, then with the nipple on squeeze it in and out to allow oxygen into the bottle to the liquid. After this, you will then shake it again with the nipple/cap or dripper on, leaving it to sit in the dark all together for a week. After that week the flavor will be on point and ready for vaping! Typically, people will try to go the way of heat..but sometimes this process does not keep the flavor pure. This is why others prefer different processes for their flavors.
So, as always, smoking is dead and vaping is the future. And the future is now my friends!