Yeah, in theory you can stash stuff outside, but that also isn't as simple as it sounds. While I take some issue with the milk analogy below, in this case, I think it fits. Imagine you have a gallon of milk. You lose power. You go stash it in the snow. Okay, it's kept "cold" for some value of cold. That "some value" matters, because with this gallon of milk, you can't smell it to see if it's spoiled, and if something goes horribly wrong, you die. It's not a binary thing as it sounds immediately. "Cold in the snow" is not the same as "kept at the same value I can control exactly in my fridge."
(It is also true that it is not the case that if it is not continuously absolutely refrigerated, it immediately goes bad, which is one reason why the milk analogy gets strained. Milk expires far, far faster, and in a more binary way than insulin goes bad... but freezing it is extremely bad, so... analogies are hard.)
https://www.bestbuy.com/site/cooluli-classic-0-1-cu-ft-mini-...
Runs in 120v, 12v and even 5v (Eco) mode.
In a pinch I would say a 12v based battery setup should keep something like this running for a while. A few of my emergency power lithium battery packs had cigarette/car ports on them.
That may work for some things, but freezing insulin destroys it.
But if you can’t buy more insulin then that’s a real problem.
Like in Texas earlier this year. (Though I suppose it was cold enough you could stash stuff outside…). I wonder if there any teeny little thermoelectric coolers that you could keep for an emergency and run off a bunch of batteries…