Flavor change and shelf life

[wevie]

First question - what procedure do you use to do a flavor change? I tried some different flavor liquids last night for the first time. If I have flavor A in a cart and want to switch to a different cart with flavor B, you kind of get an AB mix. Many times this isn't pleasureable.

I tried buring off the atty with my manual battery, but there was still flavor residue from the old flavor.

(This is all with a 510, BTW.)

Second question - is there a shelf life on liquid? There are many flavors I want to try. Some I have tried and really like, but couldn't see vaping them continuously. How long can I store a few mL in a cool dry place?

 

[cskent]

There's a couple of ways to reduce flavor crossover when testing flavors. The best way to go about testing is to start with the weakest flavors first and move up to the stronger flavors as you go. This way the weak flavor is over powered by the stronger one. Second, blow out the atty as good as you can when changing to a new flavor. Third, you can vape some straight VG between flavors. This kind of dilutes whatever is in your atty a bit.

As to the shelf life of juice, supposedly they're good for 2 years. But that doesn't take into account how long it might have been sitting on a shelf somewhere. Some juice manufacturers make each bottle to order and those should be good for the full 2 years. My question on this subject has always been, is it the juice or the ingredients that have the 2 year shelf life? If it's one or more of the ingredients, then when was that PG produced, or the flavoring, or the nic juice? Either way, there was a thread a few months ago from a long term vaper who found an old bottle in the glove box of his truck. It obviously wasn't stored under ideal conditions and was nigh on to a couple years old, and it was strong but vapable.

 

[Phreaker]

Some liquids come with an expiration date. Johnson's Creek has this question answered on the FAQ and they say six months. Some have reported using liquid a year later it was still fine. It should be stored in a cool, dry, dark place (away from UV light).

As for changing flavors. I have been unable to avoid the A/B mix for a short amount of time. You could try vaping USP vegetable glycerin (unflavored) until you no longer taste A then start using B. I have a few atomizers going. One for tobacco flavors, one for bakery/desert flavors, and one for candy flavors. Just last night I tried to switch from Snickerdoodle to Blueberry Waffle. It didn't work to well. The mix tasted pretty gross. I just blew the atomizer out into a tissue, cleaned it, and put some more BW juice in there. After a few drags it was fine.