Is this for real?

I had the opportunity to give this a try today while burning some brush in the back yard. I have been a little curious since first reading this post. Since an experiment is no good without some pics here we have three.
I placed the bottle of water into the fire trying to avoid open flames, just thought it would work better in hot coals. You see it here just a minute after placement.

Here is the temperature of the contents, 148F. It was much hotter, but I had to scramble to find my meter and get it set up to read temps.

As you can see, the bottle survived, but is starting to breakdown badly. I guess this method would work in a pinch, but I would not make a habit of it.
 
gave it a try this week camping. brand new water bottle on the hot coals.

ill be damned if it didnt come to a near boil!! when the seal broke and the warter seeped out the lid, i took it off and checked. hot enough for coffee.

and the bottle didnt melt, only deformed and discolored a bit.
 
I think thicker plastic melts more on the outside, a thinner plastic bottle is kept from melting from the water, but like mentioned, who would want to drink that! Die later fans?
 
You need to remove the air so that all plastic (including the lid) is in contact with water. Has nothing to do with the air itself (or oxygen). Water has an enormous heatcapacity (scaled for its density significantly higher than metal). Which means, as long as the bottle is thin enough to conduct the heat into the water, the plastic is pretty much exactly the temperature of the water. Problem is that near the boiling point many plastics already deform and/or degrade. 60-70 deg C should be ok. The other problem is, pressure builds up inside the bottle so you have to be a bit careful when opening. But vapor pressure of water at the boiling point is only one atmosphere (obviously, that's why it is boiling) or about 15 psi.
 
If you are dehydrated, you drink what you find. Read the Bible. "Its not what you put into your stomach that can hurt b/c it is designed for eliminating, but what comes out of your mouth that can hurt you. B/c what you say comes from your heart." Bad heart, bad person. But don't test God for fun. He'll crush you.
 
knifer333 said:
If you are dehydrated, you drink what you find. Read the Bible. "Its not what you put into your stomach that can hurt b/c it is designed for eliminating, but what comes out of your mouth that can hurt you. B/c what you say comes from your heart." Bad heart, bad person. But don't test God for fun. He'll crush you.
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wha??? :confused: :confused: :confused:
 
I believe that as the water got close to the boiling point and it expanded, the pressure in the bottle would increase, which would raise the boiling point even farther, etc.
It would be bad if the bottle had no give. However, just a few PSI will raise the boiling point of water by a few degrees. That being the case, a person could actually have water above the boiling point, but the pressure in the bottle would keep it from boiling. That is the principle a pressure cooker and your car's cooling system operate on.
That being said, I think it is far more likely that the bottle would simply distintegrate before any real heat/pressure were built up.
And I hate what the HDPE does to the flavor of my coffee.:)
 
knifer333 said:
If you are dehydrated, you drink what you find. Read the Bible. "Its not what you put into your stomach that can hurt b/c it is designed for eliminating, but what comes out of your mouth that can hurt you. B/c what you say comes from your heart." Bad heart, bad person. But don't test God for fun. He'll crush you.
Click to expand...

heh, ya, what???? :confused: :confused:
 
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