Nicotine shelf life and other matters.

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Lewvape

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Or, more accurately, freezer life.

Sorry if this has been covered before. From a little research I have learnt around a year for nicotine base stored in a freezer is easily achievable with little degradation in strength.

I plan to stock up with circa 2 years worth of base in order to prepare from the 2016 UK legislation.

Is this (2 years) realistic or would I be wasting my money?

Sorry to go slightly off topic for this section but... I also plan on stocking up on 2 or 3 decent but reasonably priced box mods and around 10 rba tanks, just in case.

Any recommendations for the mods or tanks would be greatly appreciated. I'm thinking possibly some form of Kanger clones...

Thanks all,

Lew
 

Mad Scientist

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I have over 20 years supply of nic in amber glass bottles in the basement. Cool, dark place and it's the best I can do. If it degrades beyond vapable, I guess I'm screwed but I see huge nic taxes on the horizon. I think a few states have already started pick pocketing their vapers.
 
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Kurt

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Store in glass, but leave about 1 cm head space. VG and PG can expand with warming. This would be important if you do you decanting into the bottle while it is cold, and bring a bottle out to warm summer temps. The bit of O2 in the head space is negligible, besides, there is already O2 in the VG or PG, and nothing can be done about that. I store in 30-50 mL bottles, so I don't have out for use more than what I need for a couple months. Some of my stock is almost 6 years old, with no change from when I first stored it.
 

Mad Scientist

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Store in glass, but leave about 1 cm head space. VG and PG can expand with warming. This would be important if you do you decanting into the bottle while it is cold, and bring a bottle out to warm summer temps. The bit of O2 in the head space is negligible, besides, there is already O2 in the VG or PG, and nothing can be done about that. I store in 30-50 mL bottles, so I don't have out for use more than what I need for a couple months. Some of my stock is almost 6 years old, with no change from when I first stored it.

That is very encouraging. Most of mine is still in the bubble wrap the amber glass bottles were shipped in. Never opened so whatever O2 was in the bottle when originally packaged has done its damage and hopefully that's it.

I order two liters of 100 mg/ml every time it goes on sale. I'm am approaching (if not there yet) a lifetime supply. I don't use much (3 mg / ml).
 

Bob Chill

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I have yet to see a single post about noticeable degradation of nic base stored properly in the freezer. My oldest stock is 2 years old. Can't tell any difference from day 1.

Kurt, 6 years is great to hear. I'm starting to think a decade or more is no problem. Even if it oxidizes and loses some strength it's no big deal. I have a couple test kits on hand and will change the math if necessary.
 

zoiDman

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    Or, more accurately, freezer life.

    Sorry if this has been covered before. From a little research I have learnt around a year for nicotine base stored in a freezer is easily achievable with little degradation in strength.

    ...

    This is by No Means a Definitive Analysis and I wish they had Continued to test for mg per ml over time, but it does have some Interesting Numbers.

    Madvapes Blog - Nicotine Concentration Over Time
     

    dannyv45

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    This is by No Means a Definitive Analysis and I wish they had Continued to test for mg per ml over time, but it does have some Interesting Numbers.

    Madvapes Blog - Nicotine Concentration Over Time


    In the refrigerator no loss in mg strength over 4 months is very good. But no information on actual oxidation amounts over time (Tanning). They just kind of lumped MG loss and oxidation into one category. This was also tested at 35mg. I think the standard should be 100mg as the higher the mg the faster it oxidizes.

    I would love to see this studied over years and include oxidation amount as we all know that oxidation has the biggest impact on taste. Along with mg loss, also include freezing and not just refrigeration.

    I know it's a big undertaking and maybe sometime down the road will see something like that.
     
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    dannyv45

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    Did they mention what the containers were made of? Most plastics are permeable too. UV, O2 and H2O all very bad.

    Excellent point. Plastic leaches air, clear adds light which may skew testing. If properly bottled in lets say brown boston round glass MG degridation should be less.
     
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