Freezing 60mg/PG Nicotine

[Mowgli]

I have 3 120ml bottles (with poly caps) of 60mg nic in PG to freeze.

Do I fill to the brim so there is absolutely no air in the bottles?
Or do I want some air in it to handle pressure when it expands while freezing?
If so how much air?

Thanks

 

[oplholik]

I leave about 1/4" of head space.

 

[JBL-37]

It's not water so it will not expand. I filled mine to the top. Most things shrink when cold, water is the exception.

 

[Hoosier]

Water is an unusual substance. It is the only known substance that expands when frozen and everything else contracts. So knowing that I'll add that it is extremely unlikely that you have a freezer that gets cold enough to actually freeze PG.

A tiny bit of headspace is enough. It allows you space to put the cap on without the possibility of pushing some out into the threads.

If you take PG out of a freezer and transfer it to another bottle while still cold, you will want lots of headspace because the PG will expand as it warms.

 

[bace a flunt]

Water is an unusual substance. It is the only known substance that expands when frozen and everything else contracts. So knowing that I'll add that it is extremely unlikely that you have a freezer that gets cold enough to actually freeze PG.

A tiny bit of headspace is enough. It allows you space to put the cap on without the possibility of pushing some out into the threads.

If you take PG out of a freezer and transfer it to another bottle while still cold, you will want lots of headspace because the PG will expand as it warms.

Yep

Leave some headspace anyway though. If you ever move or bring the bottle above the temperature that you filled it at, it will explode if there is no room to expand.

 

[TTK]

Water is an unusual substance. It is the only known substance that expands when frozen and everything else contracts. So knowing that I'll add that it is extremely unlikely that you have a freezer that gets cold enough to actually freeze PG.

A tiny bit of headspace is enough. It allows you space to put the cap on without the possibility of pushing some out into the threads.

If you take PG out of a freezer and transfer it to another bottle while still cold, you will want lots of headspace because the PG will expand as it warms.

It is interesting. But, water contracts when being cooled UNTIL it gets to 4 degrees Celsius. From 4 degrees to 0 degrees is the only tome it expands, as it undergoes a phase change from liquid to solid. Once frozen at 0 degrees, as it is cooled further it contracts as expected.

 

[Hoosier]

It is interesting. But, water contracts when being cooled UNTIL it gets to 4 degrees Celsius. From 4 degrees to 0 degrees is the only tome it expands, as it undergoes a phase change from liquid to solid. Once frozen at 0 degrees, as it is cooled further it contracts as expected.

Right. The odd part is that many folks think freezing a liquid to solid causes expansion because of this unique property of water. I guess the hard lessons of leaving a cola or beer in the freezer too long is well ingrained?

 

[Kurt]

YEs, PG and VG expand with heat, not cold. I leave about 2 mL head room in my storage bottles. I have had a bottle of 100 mg VG (filled to the rim for storage) get warm in my hot office in the summer time, and it started leaking out from under the eurodropper insert. I have heard of some bottle breaking with expansion, but it was not in the freezer. And there is probably more O2 in the PG itself than in 2 mL of head space air, and this unfortunately cannot be avoided.

 

[dannyv45]

I have (2) 240ml unopen bottles I took out of the shipping box and put directly into the freezer unopened. I gather that should be acceptable enough but I have my working bottle that I take out of the freezer and poor enough to make my premix base that I use for the month then back in the freezer it goes. Should I be transfering my working bottle to smaller bottles as I use it?

 

[Mowgli]

Thanks for the replies!
They've been sitting in the freezer since I read the first few replies.
They have exactly 0 headroom but should be fine as is/where they are.
I'll only take them out as needed so further temp change shouldn't be an issue.

 

[Mowgli]

Right. The odd part is that many folks think freezing a liquid to solid causes expansion because of this unique property of water.
I guess the hard lessons of leaving a cola or beer in the freezer too long is well ingrained?

Pink champagne in my parents' cold storage freezer many blue moons ago

 

[Kurt]

I have (2) 240ml unopen bottles I took out of the shipping box and put directly into the freezer unopened. I gather that should be acceptable enough but I have my working bottle that I take out of the freezer and poor enough to make my premix base that I use for the month then back in the freezer it goes. Should I be transfering my working bottle to smaller bottles as I use it?

If it is PG, this is the best thing to do, but what you are doing is not bad. Ideally you distribute to smaller bottles for storage and use one at a time, in order to not risk contamination of the rest every time you want some. Frozen VG is like a gel and barely flows, so for me to just take from a large bottle occasionally would have me pulling the bottle out in the morning to be able to use it in the afternoon. PG is still quite liquid in most freezers, so it is more practical to do what you are doing. But also realize that any cold liquid will condense water from the air, so it is best to bring it to room temp before opening. All nic will oxidize with time (much much slower when cold). I would rather have a small bottle I use over some weeks, and more small bottles of fresh and clean nic in the freezer waiting for me, than have a big bottle, all of which is oxidizing every time it is opened and brought to room temp.

I have 100 mg VG that is almost 4 years old now in the freezer, and it is unchanged from the day I put it into storage.

 

[DeeDee1234]

If it is PG, this is the best thing to do, but what you are doing is not bad. Ideally you distribute to smaller bottles for storage and use one at a time, in order to not risk contamination of the rest every time you want some. Frozen VG is like a gel and barely flows, so for me to just take from a large bottle occasionally would have me pulling the bottle out in the morning to be able to use it in the afternoon. PG is still quite liquid in most freezers, so it is more practical to do what you are doing. But also realize that any cold liquid will condense water from the air, so it is best to bring it to room temp before opening. All nic will oxidize with time (much much slower when cold). I would rather have a small bottle I use over some weeks, and more small bottles of fresh and clean nic in the freezer waiting for me, than have a big bottle, all of which is oxidizing every time it is opened and brought to room temp.

I have 100 mg VG that is almost 4 years old now in the freezer, and it is unchanged from the day I put it into storage.

So, for storage sake if it better to have nic in pg or vg or does it matter?

 

[Mowgli]

Most things shrink when cold.

10 characters

 

[dannyv45]

As the pg and vg is not very expensive I don't think I should worry to much about repackaging it in smaller bottles as I use it. But it sounds like a good idea to do this for the NIC base seeing how expensive it is. Also maybe I should make a 3 month pg/vg/NIC working base supply. This will prevent me from taking the individual VG,PG and NIC bottles out of the freezer every month. I don't think a 3 month working supply would change much sitting in a cool dark cupboard.

 

[oplholik]

So, for storage sake if it better to have nic in pg or vg or does it matter?

I think I remember reading that pg is better than vg for freezer storage, but only slightly so.

 

[xpackaday]

What is the shelf life of a VG/PG/NIC 48mg. I also keep my pg and vg, mixed base and flavors on the same shelf's. The shelf's are in a closet in the basement that is always 70 degrees and lower and there no light. But may maybe I should be freezing it.

 

[dannyv45]

What is the shelf life of a VG/PG/NIC 48mg. I also keep my pg and vg, mixed base and flavors on the same shelf's. The shelf's are in a closet in the basement that is always 70 degrees and lower and there no light. But may maybe I should be freezing it.

I've herd different opinions on shell life but the consencus is 1 year.

 

[xpackaday]

Except for my VG, I will use all my PG and nic base in 6 months. I bought way to much VG when I started mixing. I will move about 750 ml of my vg to the freezer. I try to only buy up to 6 months ahead.

But what about the flavoring?? Any special things to do with the flavoring and what is the expected shelf life??

 

[dannyv45]

But what about the flavoring?? Any special things to do with the flavoring and what is the expected shelf life??

The concensus there is about 2 years on flavoring and never ever freeze flavoring.