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Looking for a couple of new water bottles for hiking and camping. Looking for something that I would fill up with hot water and pop in a sock to use as a hot water bottle in the sleeping bag.
Thinking something with a wide ish neck to allow easy filling with a hot water, about 700/800ml.
Nalgene or kleen kanteen? Sigg seems to be out as bottles are internally coated and can't handle boiling water. We'd be drinking the water the following day.
Can't really help on what would be good, but I'd confirm that putting hot water in a Sigg and letting it cool off probably isn't a great idea. At the very least, you'll ikely find yourself the owner of a thermally collapsed aluminium bottle, and also possibly unable to unscrew the stopper too.
I have a Sigg bottle that came with a tea strainer built into the top of it, so surely was designed for boiling water?!
I use a Titanium bottle for that. It even came in its own wee neoprene sleeve.
https://www.ebay.co.uk/itm/353030078575
(the 750ml one)
I've used a Nalgene wide neck bottle with boiling water no problem. If you go ski touring in Europe they fill your water bottle with hot fruit tea in huts in the morning. Wrap it in spare kit and it usually stays unfrozen for the rest of the day. Also used one as a hot water bottle wrapped in a fleece, although I usually find this too hot.
I have a kleen kanteen and it's really well insulated, so much so it'll be no use as a hot water bottle.
Can’t really help on what would be good, but I’d confirm that putting hot water in a Sigg and letting it cool off probably isn’t a great idea. At the very least, you’ll ikely find yourself the owner of a thermally collapsed aluminium bottle, and also possibly unable to unscrew the stopper too.
Not with a genuine sigg you won't.
Maybe if your into hooky copies
I have three of those bottle-shaped insulated flask things, one has green tea in it, bottle pre-heated with boiling water, stays hot for around six hours. However, using it as a hot water bottle is spoiled by the fact it’s very well insulated, basically it’s a stainless steel vacuum flask. Cold water stays cold for ages too. £5 from Wilco’s, great value.
Got flasks for keeping drinks hot, really just wanting a bottle that'll hold boiling water for overnight winter camps, it'll hold standard cold council juice 99% of the time.
I do like the that titanium one, but can't justify spending over £50 on two water bottles (can't justify it to the wife, can totally justify it to myself!)
Found nalgene n-gen bottles, look to be right size and shape. Might give them a go.
Not with a genuine sigg you won’t.
Maybe if your into hooky copies
As far as I know, the one I've got is a genuine jobby, it cost a 'reasonable' sum quite a few years ago. But I'm not going to run an experiment to test it out 😉
.
I do like the that titanium one, but can’t justify spending over £50 on two water bottles (can’t justify it to the wife, can totally justify it to myself!)
At least I was only after one! I liked the idea of Ti as I could then actually heat it up on a stove (after removing the non-slip o-ring in the base). It'll also be used (occasionally) on a titanium frame so, you know... 🙂
Nalgene bottles work OK for this but be careful with other makes. Best do a few tests before trying it in your insulation.
As Whitestone says don't try a Nalgene copy. We bought a similar looking one from another outdoor shop and it relied on a rubber seal of some kind (nalgene have a clever leakproof one piece moulding) and worse still got a lookalike from Aldi that flexes and not rubber seal or clever moulding so just leaks when inverted or squeezed.
My older Nalgenes were made out of something called lexan, now seem to be made from a newer plastic called Tritan that might poison you less.
https://www.needlesports.com/Catalogue/Accessories/Water-Carriers-Vacuum-Flasks-Storage-Jars/Nalgene-Tritan-Bottle-Wide-Mouth
Thanks all.
Although it says 'co-polyester' in the description it doesn't specifically mention tritan. I also didn't realise they moved on from lexan.
I've emailed their customer service dept asking about the n-gen's suitability for holding boiling water.
Emailed nalgene support about the 'n-gen' bottles and this is what they said...
"Our bottles can technically be used (with due caution to prevent burn-related injury) to store and drink hot liquids, although we recommend letting anything that is boiling or extremely hot cool off a bit before filling. This will minimize the thermal stress to the resin and maximize useful service lifetime of the bottle, although it may still be somewhat shortened if it’s used regularly in this capacity. The primary concern at higher temperatures is the potential warping of the bottle over time, but this still presents no safety risk (after all, the bottles are initially molded by injecting melted plastic into a mold). The warping effects would be merely cosmetic, or in the worst case scenario some leakage could eventually result from warping at the junction between the bottle and closure."
in the worst case scenario some leakage could eventually result from warping at the junction between the bottle and closure
Just what you need in your sleeping bag