Bottle container for hot liquid

I've used Nalgenes for many years with hot liquids and zero problems. I don't usually have one in the bag with me but I do put my hot morning drink in my ski boot liners to warm them up and insulate the bottle at the same time. I would not risk that unless I was completely confident in the bottle.
I would not use metal – you won't be able to hold a metal bottle full of just-boiled water.
The HDPE bottles (Hunersdorf and similar) are better in extreme cold, but be aware that with near-boiling water in them they get quite soft – like make-you-nervous soft in my experience. Of course at altitude that's less of an issue since the water boils at a lower temperature.

I've never done the hot water bottle in the bag thing. Can someone give me an idea of how long the water will actually stay warm for? A couple hours? or most of the night? If it's only going to be for a little while I think I'd rather not have an uncomfortable plastic bottle rolling around near my feet all night.

Wait wait wait… I'm concerned now since I use LDPE Nalgenes in my bag and quilt all the time. And yes, they work with 100˚C water without deformation or other failure – I can't say for any measurable amount of time at 100˚C because, you know, water cools down over time.
But what's this about Nalgenes catastrophically failing? Only time I've heard of this is a HDPE or Tritan Nalgene freezing and then being dropped on a rock. Are you saying a hot Nalgene will break too? And if so, what are the reproducible steps? I need to test before my next outing!

40 Below make neoprene insulation for the Hunersdorf 1.0 & 1.5 bottles. I use them to help prevent my water from freezing, but I'd imagine they'd also help keep hot water from cooling too fast inside your bag

Mitch,
I think the problem with Nalgenes is pretty much always at the cap. Other than the one I accidentally melted next to a camp fire (it remarkably still held water just fine, just a little deformed) I've pretty much only seen failures at the lid. Nalgene lids don't seem to be as tough as the rest of the bottle, regardless of what material the bottle is made of.

Inspect your cap and your bottle before a trip, don't be too rough with it and I think you'll be just fine. That's been my experience anyway.

My 2 cents:
I have been using Nalgene bottles since the 70's.
I don't recall ever having a top break.
I have seen the main body shatter.
I believe this is due to UV exposure over time… years.
I don't know of any LDPE Nalgene… never heard of it.
The milky colored old style Nalgene bottles are UVPE which is HDPE treated to resist UV degradation.
The clear/translucent bright colored Nalgene bottles are copolyester and about twice as heavy.
I believe if you go to the Nalgene web site you will see that the milky colored UVPE bottles are rated from -100ºC (-148ºF) to 120ºC (248ºF)
http://store.nalgene.com/product-p/2179-0016.htm

Billy

Of course just as I posted I did recall a Nalgene cap breaking…
But according to my memory that is years down the road.

billy

I'm new so do not over react if hand warmers are frowned upon.