Survival Myth or Reality: Does Double Walled Water Bottle Explode in a Campfire??
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- Опубліковано 29 лют 2024
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Dan
If anyone was looking to use a double walled water bottle for its intended purpose, this inadvertently became a very effective Ozark Trail advertisement 😂
I own this same bottle, it's great for it's intended purpose.
The double walled bottle in the fire is doing what it was designed to do very well, insulating the contents from the external temperature..
Not "from external" but from heat exchange.
( : Yes! I was trying to think of the word but 71 y/o brain couldn’t find it haha.
Wow you actually picked up on that. 🤗😂😂😂🙄😂😂😂🤗
Great content. A bit verbose. Thanks nonetheless.
Double wall stainless thermoses make great windproof water boilers for small backpacking stoves. You just cut off the bottom of the outer shell and drill a bunch of holes around the neck of the outer shell. Make a little mount on top of the stove and they become impervious to the wind in boil water with very little fuel.
That's an amazing hack- thank you.
Or, instead of destroying a useful item which has higher value undamaged, you could use other means of wind protection (and dozen times cheaper too).
I like the "Mythbusters" version of your videos...great information for those who do not know.
@@rammix1nah dude. It was a slick hack
Interesting.🤔
This insulated water bottles makes for a good extra weight - it’s like carrying two water bottles but only one of them you’re going to use.
Get s G.I. 1qt and cup. Or a repro of the old school metal canteen. There's also a cup stove you can put over coals or even into a fire. Get the open stove, not the fancy one. It sux since you're heating the stove instead of the cup.
@@nomadmarauder-dw9re
Absolutely. Those are totally legit. I love my old canteen cup. You just build a little fire underneath it and it’s perfect. No need to bring a stove, it already nests inside of a practical metal fire ring.
But metal can act like a pot plastic can not
@@journeybrook9357
Yeah don’t go for the plastic canteens - they make them out of stainless steel.
Or you have to carry double the wood and time to reheat your water. It all depends on your situation.
Excellent myth buster that was long overdue.
Another issue with putting insulated bottles in a fire is that a lot of brands still use lead solder plugs in their construction which fire is not going to play nice with.
Don't breathe this!
@@Eyes0penNoFearwouldn’t be enough to hurt anyone
@@AquaTech225 Columbia University Irvine Medical Center:
"Lead and Children: No Amount of Lead is Safe"
@@Eyes0penNoFear That is for ingesting it. The amount of lead is so incredibly small in these bottles that it borders on nothing. Also a fire isn't going to get it hot enough to vaporize and even if it did you would have to breathe within inches to actually inhale any.
The double wall container would take a long time to cool down enough to drink after boiling too.
A few years ago I was at TJ Maxx following my wife around and kind of bored. She went into the sale aisle and suddenly I wasn't bored anymore. Right in front of me was a shelf full of stainless steel water bottle. 32 ounce. I picked one up Abbey were all single walled. $5.99 each. My wife watched in amazement as I scooped up 10 of them and threw them in the cart. I put2 in swept my get home bags. The rest are still on a chain my garage. I have never seen them in TJ Maxx agai. No idea why they were there but... I am flush with water bottles.
Always heard they'd explode. Never heard they wouldn't boil water. Thank you so much for the expert information and the concise presentation.
You basically explained what I've always thought when hearing they explode.
Thanks for going full Myth Buster for us with this one.
I think that the insulated container looks cool now that it has some color to it
Yeh unfortunately heat coloring like that does not last long and wares away pretty fast
After putting it in the fire, it's probably no longer vacuum insulated.
Most of them have a plug of some sort in the bottom, where they draw the vacuum on and then solder or seal it shut. So the heat would release that, releasing the vacuum, hence making it no longer vacuum insulated.
But by nature of it having air trapped between the two bottle sections, there would always be some insulation value to it. Also the reason why it doesn't boil water very well in the fire.
Either way, it seemed to take quite a while to heat up, and we never saw it boil in the time we had.
Hahahaaaa... show us a tin of baked beans in the fire... FUN!!😁😁
What do you mean?
@@dcongdon2294 The best way to find out is through experience.
Now that video would draw the viwes!
Try spaghettios, a 80mm pop , Lil orange rings everywhere 😮
That would scatter beans all over the place...dont ask me how I know.
Never had one of the early double wall coffee mugs that had the seam on the bottom of the cup?
They’d take on a little bit of water into the air space over time and then if you set them on something hot like a wood stove or a camp stove they’d launch like a rocket…. That’s why double wall stainless is dangerous.
And yes I’m speaking from personal experience on that one…. I remember it made quite the bang when it let go.
Makes a lot of sense. Insulation works both ways!
Hi Dan, I must say you are an awesome instructor. I love watching your channel when I get off work your instruction skills are outstanding. I really enjoyed watched some of your older videos!! Nicely done!!! Brother
I believe people are confusing the Kelley kettle with a double wall thermos. I have heard of people plugging the water side of a kelly, which will cause pressure to build as the temp rises over 212 degrees. Just like a pressure cooker, it wont boil until the can ruptures, then a few cubic centimeters of water will turn into many cubic meters of steam almost instantly . Causing a terrible explosion. The air between the walls doesn't expand far enough or fast enough to cause so much damage. As always, great show Dan. Thanks
Good point.
as i work on boilers a fun fact is steam expands to 1,600 times its volume when released from pressure.
If it is a closed system, increased pressure will increase the boiling point.
Every vehicle going has a pressurized water system its done to raise the boiling temp of water from 212 to ? Ib of pressure 2 degrees higher for boiling temp its why radiators explode when the cap goes bad sometimes to much pressure or to little water to much steam pressure up.boom metal fatigue
A water boiler such as a Kelly Kettle will boil water very quickly with twigs, pinecones, or dry grasses, but its not really designed to carry water, it only has a press-fit rubber plug in the spout. The two larger sizes work best, but they are very bulky. The stainless fire base makes a decent wood burning camp stove with the optional "hobo stove" there are other manufacturers out there to explore as well.
For a single-walled water bottle, I made a foam cover from a closed-cell foam pad, which works pretty well, but prevents me from nesting the bottle in my titanium cup.
I have to wait a couple of minutes for the metal to cool, or it will melt the foam and stick to it. Wood resin sticks, too, but can be sanded off quickly with sand, if available, which is usually the case at the water source.
Great video as always Dan!
I think the reason people think it will explode is because they're thinking of sealed containers that have water in them(soup can, etc). Liquids and gasses are very different when it comes to thermal expansion. Heat up anything, it will expand. If you double the volume of liquid in a sealed container, the container has to give but if you double the volume of gas in a container, you increase the pressure a little.
Another simple way to put it is you can pressurize a gas, but in any practical sense, you can't pressurize a liquid. That's why hydraulics work
Nothing to do with hydraulics - if you boil a water-based liquid, every liter expands to 1,700 liters of steam =1,700-times barometric pressure.
Doubling the volume of gas in a container doubles the pressure,
I won't call that 'a little'.
@@mannihh5274Still, there's nothing in here that can explode. The insulator in an insulated water bottle is vacuum.
The thermal expansion of air going from 0c to 100c is about 136%. That's the limit here. Ice water to boiling water. Multiplying nothing by 1.36 is less than 1atm.
Ok... It's not a perfect vacuum because that would be too expensive to make... Multiplying 0.25atm by 1.36 is *still* less than 1atm.
What's more likely to happen is for the solder plug to melt and get sucked up into the vacuum chamber.
Thanks for clearing this up.
Wait, wait, wait… I just filled & capped my insulated bottle with gasoline & put it in the campfire… you’re saying it’s safe? 😂
Yes it willbe safe, vacuum between walls is a perfect thermoisolator so you need realy long time to boil your gasoline inside that bottle.
You are a hoot to watch! Great stuff, fun, and informative too.
VERY good video - glad someone finally cleared this up. I can only give this a 'thumbs up' once, but ... +10!
Thanks for sharing Dan. 😊
After hearing lots of rumors, I appreciate the clarification!
Put the lid on it and put it in the fire man, we want to see some stuff go KABOOM! LOL
Bushcraft mythbusters!!!! Love it haha
Great video. Please more of this.👍 So many fancy idieas out there😱 Looking forward 😁 stay in the woods 🌲🌲
Awesome video 📷 Dan!! Keep up the good work 👍
Great video.
Thank you, i had bought. a really good insulated bottle. I heard on one of you tubes many sites that test gear. I paid even more for a single wall bottle to replace it. I wanted a bottle to put my clean water into to store and keep cool. Thanks, I just saved about $50 dollars...
On the plus side, this shows that the one you chose does seem to have pretty darn good insulation!
.....but that just means you have to use it for exactly its proper purpose.
It more then likely started with Stanley. They are glass lined and I could see that. Just not outward.
Thanks for blowing up the myth.
I have ins
Thanks, Dan. You explained this scientifìcally.
I love LOGIC and Truth. Great vid M8
Good video as always.
Great video!!! so there’s another reason not to use insulated water bottles. After the army I was in college and used a old-school Stanley coffee thermos. Now this was not fire related, but dishwasher related. So I was young and I washed my Stanley thermos in the dishwasher, the seam separated. So one day when I was pouring my coffee and tasted like rust. So it’s possible for water to escape into the vacuum, sealed part and turned to rust and become a health hazard.
Random, but I bought one to use as a crucible for melting low-temp metals like alumiuminum in the fireurnaceorge and they jokes aside work quite well. You also get two for one if you just cut their rims off with a grinder or dremel-cutter. Successfully melted over dozens of cans into pucks with one half, and they're cheap enough to just toss if you can't get the slag out.
If you put the lid back on an aluminum beer bottle and toss it in the fire it's pretty cool learned that one on accident
Fun video Dan!
WOW!! Such explosive results!
Thank you.
I used two 1L double walled bottles last winter on a -15°c/5°f trip to keep my water from freezing. Worked well. I use two single wall titanium bottles the rest of the year.
Cool. I was wondering about that.
🔆
Ace watch enjoyed watching on camp chill out with a coffee
Excellent videos see to many bushcraft and so-called UA-cam survival experts saying that.
Good to know. Thanks.
What a great test ! The double wall was doing its job for sure, but it was definitely getting up there in temp. i wondered how much longer in the fire it would have boiled. It's definitely hot enough for some tea
Mythbusters couldn't get a grenade, and here you are, just casually flinging one around. 😮
ha, lotsa fun stories of exploding cans below.
Back in the 70s we seven or so forgot about the can of beer someone put in the 5 X 5 X 5 bonfire. (old barnwood, mixed hardwood)
Blammo! after half hour or so.
We all flipped backwards in our chairs, and the beer BLEVE all but put out the fire and left us all in the dark.
lol. You ok, yeah, you ok, yeah, you ok..... Holy moly it sure got dark fast. (-:
Great video. Let's do wind screen/ fire reflection.. and the differences.... and windscreen with mylar becomes flammable. I mean becomes a fire reflector, like in super shelter... and in against wind screen.. etc
I heard the double installed container boom from another UA-camr. Great video. ✌️
You can drill a vent/fill hole in the top of the double-wall. A some water in the bottom will generate lots of steam to boil the water. Theoretically, with less needed fuel. And it has a vent so no boom.
Thank You
I have never liked insulated water bottles because they're so heavy, until I learned in hot weather or the desert having ice water is amazing!! I bring a metal pot for survival reasons if I bring my hydroflask on an adventure. Interesting video, I liked the expirement!
another thing, if you get the water boiling, the insulated bottle will keep it from cooling down, making it take much longer for your water to get down to safe temperature.
I’ve never thought that an double walled bottle would explode, but the air between the walls has to go somewhere when it expands and as you said it’ll pop a seal to escape… surely then the bottle is knackered and rendered useless as an insulated bottle 🤷🏼♂️
A few cuts with your multitool to the bottom edge and a few holes to the upper part of the first layer and you have a jet boiler... i don't know why people have trouble boiling water in those :)
They probably left the lid on tight.
I don’t think anyone would do that. The lid is made of plastic, so it would certainly melt.
@@leopoldbloom4835 Maybe yours is - I’ve got one sitting right next to me that has a stainless steel lid with a silicone gasket - silicone has to get REAL hot to melt…
Good 👍
Is there any sort of coating on the aluminum or metal drinking bottles?
I have been told, but never personally verified, that if you poke a small hole in the outer wall (with, say, an awl or other pointed object), it will reduce the insulation property to almost zero. This will then allow you to boil water more quickly, although not as quickly as a single-walled container. It is something I have never verified, but was wondering if you might be interested in giving it a go.
When I was in the scouts someone threw a whipped cream can in the fire. That was pretty exciting.
5:11
At the expense of multi purpose function, versatility
One benefit from the insulated double wall container,assuming one has a single walled vessel... Perhaps the nesting cup or the bush pot.
Boil in one, store into the insulated.
A small benefit, to be able to keep hot water hot longer, perhaps.
But, if you use that morning campfire, and prepare some hot broth to enjoy midday midhike when you might Not have a fire....
As one example.
Great video! I got one! Is wool warmer than down or synthetic.
Nice idea! And determine what their equivalence is by weight or thickness..
Even if it doesn't explode, the whole point of a double walled container is to insulate the contents. If you're heating water, you would want it not insulated. Also with no air gap, the single wall holds more water in a smaller space.
Best insulated bottle torture test ever!
I never thought it would take it this well and still keep water cold for so long IN the fire but exploding? If anything there may be a vacuum or some low-pressure gas inside and that would be a big brand bottle $$$.
I want to be the first one to say that you might have started a new trend in insulated water bottles: the flame kissed look.
Apparently it's common for those vacuum insulated bottles to be sealed with a lead plug. I haven't melted lead but I bet that seal would be compromised before the water inside boiled. Depending on the design it may still be safe from lead contact at that point but the vacuum insulation would be ruined.
Tin, not lead. lead cannot be present anywhere in anything sold for food use in North America
@@MrDmadnessa quick Google search shows Stanley cups and many other brands use a lead plug in the bottom. Kinda mind blowing
Nice job on myth busters....
🇺🇸🇺🇸🪓🔪👍👍
I seen those double walled ones pop off pretty good esp the ones with the bottoms like that. The bottoms love to blow off them as they are not welded but soldered. Not dangerous by any means but will make you jump a bit when one jumps 5 feet LOL
That gives me an idea. Someone gave me one of these. I’m going to have “Front Towards Enemy” engraved on it.
Thanks!!! I feel like a idiot. I believed that it may explode because of the stories of old pressure canners. Then I watched a bunch of UA-cam videos on steam engines and boilers needing a pressure relief valve on DYI projects. That’s for clearing this up. I’m still not going to try it because I refuse to destroy a perfectly good insulated bottle. LOL
Good to know!
Piqued my interest, I did wonder why no good had not heard of the exploding myth. Now, if survival, I need kept hot or cold double wall excellent not so good boiling for sanitation
A quick way to boil water in the double wall bottle is to use hot rocks. Might not get hot enough to break the seal, either. Just a thought.
When my single wall gets smashed or dented I put about an inch of water in it and screw the cap on tight and set it in the fire with a string tied to it. It expands back out and I pull it out to cool, good as new. Do a video of that
If all you have is a double wall container the best way I found to heat up the water is to get bailing wire put it through a large nut heat up the nut and put it in the water let it cool off and repeat it takes a while but it works ideally you have more than one nut your heating one up while heating up the water
I always assumed the insulation would melt or settle when heated and then no longer function as a insulated bottle effectively.
Its like trying to chop down a tree with a screwdriver, could eventually do it, but not the right tool for that job
Cole.......where did you get that hand grenade??
General Joey biden caught that in the air back in WW1.He snuffed it out.Thats how he won the MEDAL OF HONOR the first time.
I drilled a couple of small holes in the collar & it will take a good 15-20 minutes to get water boiling...👍🏻
Those Ozark Trail bottles keep hot liquids hot longer than any other brand..👍🏻
This one might be possible to test but it would take some work. I was told by a camp counselor that if you are lost in the woods drag a long tree branch behind you that it will Prevent you from walking around in circles. I think the theory is that the branch would stop you from making to much of a curve. He only said a long branch. I would think that it would need to be at lest 10 feet. I think this could be tested with some tenderfoots and some GPS trackers. Give them a phone put it in an envelope an experience person might have other ways to determine directions.
And your take on the bedroll in the mud theory, fold grass over or cut down and pile up? Man, I can keep you very busy!!
I've been playing with army and camping stuff since I was a little boy. I genuinely believed that it would explode if I put it in the fire or dishwasher. I did accidentally dropped a can of corn or something in the fire. I forgot all about it until.......... sounded like a shotgun. Shook me up.
Singled walled are also lighter and take up less space
I suspected this was true but I never wanted to put my double wall in the fire to test. Those things are expensive lol
Only the generation who stares at tiktok and insta 24/7 would've even thought for a second it would actually explode. The fact that we even have to explain stuff like this to the youth of today is so sad. Great video though🤘
If you heated rocks in the fire and put them in each container with the same amount and temperature of water would one boil quicker than the other? The insulated bottle may hold more the heat in the water bringing it to a boil quicker. IDK.
I do believe that you can drill a hole in the outer layer and release the air in them they work faster.
The only 2 mith I hear that bugs the hell out of me is cotton kills and you must have titanium cook wear and titanium garden trowel to dig a cat hole I prefer a cheap trowel you can pick up at any hardware store it comes with a handle I'm guessing it sold separately for the titanium one
I wonder, why so many people don't have any clue of physics, isn't it a school subject any more? Thanks for explaining some of it ('unlike a grenade, the bottle is not designed to explode and produce shrapnel'), although you missed the most important point.
@4:07 you talk about "the air between the outside and inside wall" - there is no air between the two walls, but a high vacuum! The higher the vacuum, the better insulation properties the bottle has. If there was air at athmospheric pressure inside, there would be a lot of conduction going on and the insulation be rather poor.
But with a vacuum between the walls there's (almost) no conduction and the shiny walls reflect most of the radiant heat.
It can't explode, because there is nothing inside to expand when heated. I'm quite sure, the seams will hold on pretty well, nowadays they use to laser-weld it, but there still is a weak point: a single hole, where the bottle is evacuated through. Quite often they are soft-soldered shut to seal the vacuum - in a hot campfire the solder can melt and allow air to get between the two walls, destroying the insulating value and speeding up boil time on the next attempt.
Would drilling a small hole in the outer layer help it boil faster?
Marginally yes. Too many variable factors for a definitive answe. A series of 5mm (no few what that is in inches) towards the base and another towards the top would definitely improve boiling times. However, the bottle would lose some of it's insulation properties. Buy a single wall and save the hassle.
Triggers have went off all over the net right now 😂😂
IMPORTANT:
Not necessarily a myth, but one of THE most important thing to be discussed is the mylar blankets. For beginners and most of the time for advanced survivalist as well.
To me, this one of the most misunderstood products. And yet it's in everyone's bags.
Every time I talk to someone who's just getting into survivalism, they talk about having bought their space blankets.
OK great. But most don't realise that these things can either save you or kill you. Most don't understand that the fact they don't breathe, it can make you sweat and thus negate the situation.
Most don't realize that if you put it on like a blanket (touches your skin), it becomes conductive of the cold ambient air.
There needs to be a serious and lengthy discussion on how to use it, and under which scenarios. And when to use it. Where to use it.
There are plenty of myths associated with this product. People somehow think this will generate some heat. Not realizing that if you are cold to start with, it can only use your own body heat. As long as it doesn't touch your body.
Anyway, you get the point.
I carry a single wall to boil in and a double wall to insulate and keep my heated water warm.