asr9754 wrote:Yes it works, I do it all the time, not just Bman but camping and backpacking.
The secret is to fill the bottle only about 80-90% full, squeeze the extra air out, then put the cap on tight as you're squeezing it. Then freeze. As it freezes, it will have room to expand without breaking the bottle.
Even better, I do the same thing with a (rinsed) plastic gallon milk jug, freeze it at home and throw it in the cooler en route, it lasts a 3-4 days, then I have clean cold water to drink. Once I drink it, then I cut the top 1/3 off the jug, and when I buy ice from Artica, I set the whole thing (Bag and all) in the jug in my cooler--it stays colder longer, and when it melts it's contained in the jug, still clean enough to use to shower, wash up, brush teeth, etc. Then smash the jug and recycle on your way home. Total reduce-reuse-recycle LNT! Less gross cooler water to deal with. Win-win-win (WIN!)
(PS dry ice is great but don't duct tape it shut, dry ice needs at least a tiny bit of ventilation)
Elorrum wrote:I save the straight sided half gallon plastic juice bottles (ocean spray juices have these shapes) I buy from time to time over the course of the year. These fit nice and tight in my coolers, and small freezer compartment. I always try to keep my freezer as full as I can with these types of bottles, if I don't have much frozen food in there. It saves on energy as I open and close the door, and they are always ready to throw into a cooler when needed. I like the milk jug idea for holding arctica bought ice, thanks asr9754. I keep a milk jug with a hole cut out of the top, in my bike basket for moop.
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