Your right deusXmchna. I purchased a vat, dividing it into smaller portions and froze it all except a container in use. that bottle is kept in the butter compartment (by its' self) in the frig. Since I only have 1 finger to type, wanna expound the reasons / benifits to freezing?
It's not gonna be a very exciting answer.... maybe someone more intimate with nicotine chemistry can jump in.
I don't know what the primary mean(s) of degradation are going to be with the stuff we're generally working with-
but the general rule is "the colder it is, the slower the degradation.". That's just because chemical and biological processes
slow down as the temperature drops.
The rules of thumb on preserving
stuff (<- technical term) are
Keep away from
- heat
- light
- oxygen
- moisture
In most of our cases, the best we can do about oxygen is just keep it tightly capped. There are a few tricks to laying heavier than o2 gas into a bottle or jar that are a little effective, but I'm not going to expound on that- if you're capable of doing it, you know how to, or know how to figure it out. Probably not that important here.
Moisture is another one that's going to be hard to control outside of.. well, a controlled environment- and it's probably not the primary worry.
So that leaves us with heat and light
Dark/opaque bottles, and cold storage cover it.
A freezer may be overkill. Kinda depends on how big your stock is. But cold is better than hot

Oh, and the scientist I had the exchange with was using NON frost-free freezers. I never knew why, so I just looked it up, and frost-free freezers heat up a bit to melt the frost every now and again, so it's not an absolutely stable environment. I don't think that matters to us. She was doing some heavy neuropharm stuff- we're just trying to keep our nic viable for vaping.
Hope something in this pile o babble helps
-so to "bottom-line" it: stuff (usually) happens slower when it's colder. (that's not an absolute statement. when getting into some areas of physics & semi-conductor materials, things happen in weird and wild ways)