This is the trusty fuel I take along with me for my JetBoil Personal Cooking System. I’ve used it in negative 5 degree temperatures and it worked great!
If you are looking to “refuel” I’d recommend stocking up so you aren’t short in advance of a last minute trip.
I always take 2 cans with me on every trip as a safety precaution. Plus, it is nice to have extra fuel at home to give me peace of mind in case there is a power outage or a California earthquake. It’s nice knowing that with my JetBoil I’ll at least be able to have hot meals and a cup of tea in an emergency!
