To clarify some misconceptions...
Steeping is a closed bottle sitting out of sunlight for a period of time. It allow entropy to happen or flavorings to fully diffuse.
Airing-Out, or Breathe, is an open bottle sitting for a period of time out of sunlight. It allows volatile notes and maybe PGA to evaporate while allowing some of the nicotine to start oxidizing which lends a bitter note.
They do two different things and it would be a shame if folks didn't know the difference.
That said any mix should be vaped immediately after mixing. If it's close, set it aside in a closed bottle, and let it steep to see if it gets closer. Usually doesn't, but it never hurts to see.
There is a recent
thread in the DIY sub where a new mixer was confused between steeping and airing-out, plus assumed it was a required thing and ended up making some foul tasting juices. Once the mixer fixed that misconception, the flavors got much better.
Check it out if you like.
There are also some mixers that tend to hang out in the DIY sub that have blogs full of all kinds of information about mixing and how to make your mixes better tasting. Might be worth checking out also?
