All right, i searched for freezing tirz, specifically the Jano response but...

[tubby]

I’ve only ever seen the hospira in 30s. Supposedly it comes in 20s at 1.1% but who knows where to get that, and I’ve looked.

Someone maybe it was on this forum was making her own BAC, and hopefully she’ll see my question asking how to do that and where she sourced the benzyl alcohol

Let's say it's day 7+, hunger is at its max, you're about to be forced at gunpoint to a pizza buffet, and if you don't Macguyver your way to reconstituting a vial, you just know you'll gain 30 pounds! Under those circumstances, maybe consider preparing your own water. Otherwise, just buy from a trusted supplier and keep some in reserve. It's not about finding the right stuff to put into it, but rather keeping everything else out. The keeping everything else out is non-trivial.

Granted, it's very unlikely you'll kill yourself and if you compare notes with any former IV drug addict, they'll openly tell you all the crazy stuff they used to shoot up with (one told me diet mountain dew). It's just a completely unnecessary risk factor to introduce unless you're in a situation where you can't get access to proper BAC water in a timely manner.

 

[john_askins]

I’ve only ever seen the hospira in 30s. Supposedly it comes in 20s at 1.1% but who knows where to get that, and I’ve looked.

Someone maybe it was on this forum was making her own BAC, and hopefully she’ll see my question asking how to do that and where she sourced the benzyl alcohol

cool thanks. I mean it's not like it's breaking the bank but it's pretty wasteful when I dump out the majority of it. I'm going to do the freeze test when everything arrives. I had also thought about putting the open BAC bottle in a sealed container with 99% IPA sprayed all over it so there is no chance of anything growing. That is the main concern with opened BAC, correct?

 

[Labcat]

cool thanks. I mean it's not like it's breaking the bank but it's pretty wasteful when I dump out the majority of it. I'm going to do the freeze test when everything arrives. I had also thought about putting the open BAC bottle in a sealed container with 99% IPA sprayed all over it so there is no chance of anything growing. That is the main concern with opened BAC, correct?

Opened BAC will let oxygen into the vial, which accelerates the oxidative breakdown (in a positive feedback cycle as the products continue to increase oxidation). Light and heat also breaks down benzyl alcohol. its expiry date should reflect how long effective levels persist under the recommended handling.
There’s another thread here about whether to freeze the BAC to help extend its life. I’m personally convinced it would, but some people comment that hospira says do not freeze.
Unfortunately ipa doesn’t kill certain organisms, for instance gi viruses, spores, enterobacter, klebsiella, mycobacterium, pseudomonas. It’s better than benzyl alcohol tho.
We don’t need perfect, tho, improving handling should make it safer to use it for longer. As others mention, personal use can be much less contaminated than a clinic where the vial is punctured daily with an indifferent quick swipe (rather than 30 sec and air dry fully without waving it abiut to catch aerosols on it).