Step 1: Step One

First, Get an empty watter bottle. Easy enough.
if you freeze it without the cap on, the pressure created from the water expanding should be relieved by the open end, therefore not causing the bottom's rounded expansion you talk about in the next step, allowing it to still be able to sit flat. I've not necessarily tried this, but it should work.
I am an Eagle Scout, and have seen people I know do this on hikes, I don't for three reasons. One, I usually don't take much water because I don't like the extra weight and don't drink much. Two, the frozen water takes up more space than liquid water, meaning more weight for less water. Third, and I have seen this happen and it is very unfortunate, you may run into unpredicted weather. We took a hike before a three day camp out, and it ended up being 20 degrees colder than predicted, snowing and raining, and the people who froze their water, about 8 out of 10, could not drink it because it didn't unfreeze. If you are hiking, don't do it.
it still weighs the same just take up a bit more space
I mean, I only take about 1 bottle of water per 10 miles of hiking.
i think you're right, and i think it's not so good to drink very cold water . but if you freeze 1 liter of water , you get an ice cube of 1 kilo, but with a volume of 1.2 liter ( i didn't calculate exactly, it's just to explain) . iced water is less dense than flowing water, that's why ice cube ( and iceberg ) float. ( and titanic sink )
Yeah, that's my point, you can fit more liquid water in you bottle, because when it unfreezes, there's empty space.
Nice, I do it sideways... it also works good!
Timheppner has it right: try lying your bottle on its side. You should have a flat-bottomed bottle the next day AND really cold water on tap.
wouldn't dropping in some dry ice work better :D
You could do that, but then you'd be left with carbonated water.
heh, all the better!
i don't think that's very good 4 ur health...
Everyone knows it but there's no 'ible so that fine, someone wont have thought to... lay off the caps lock a little and get some nicer pics, guessing the camera's fixed focus. It'll really make the 'ible a bit better. If the camera has a macro try it, little flower icon, if not take the photos from a distance that it'll focus at and crop down... You have a little freedom to at that resolution since the pictures are only displayed on here at 500 X 335 As a suggestion for a random fun side project take a bottle and boil water first, leave the cap off and freeze, you should get a pretty nice natural sculpture that's completely clear...
lol, my camera's pretty good, i just was a little shaky that day :D
Fair does, just attempting to help...
What kind?
It's probably not completely clear (just boiling the water isn't enough)- I've experimented with making clear ice, got quite far but broke both the glasses I was experimenting with so shelved the project for a while. I did get a very cool result which was a block of clear ice with bubbles in the middle, it looked like a tiny frozen explosion (but made my camera's autofocus sketch out so I couldn't get photos). Maybe I should 'Ible that as well, it worked a lot better than the usual "boil/filter/freeze" approach.
Aye but if you do the expanding sculpture thing it comes out pretty clear, Pm about your method and I'll try getting some pics for you, since I have an array of interesting glasses...
Um, freezing plastic bottles will release chemicals in the plastic. Also, using a screwdriver?!?!?!?! Very dirty and nasty.
hmmm, considering how the screwdriver was clean, never been used before, and was stainless steel, i think im safe. (don't they use stainless steel in kitchen knives???)
Okay.....my bad.
No, it doesn't. Only certain clear plastics leech phthalates, which you are probably thinking of, and freezing is not something that causes them to leech out.
or if your like me. Just put your water bottle in the frig and there. a water bottle thats is always cold for hours or mabye days.lol(has to be in and stay in the frig to work) i dont think people will get it but the water bottle is always cold as long it stays in the frig. Also some plastics leak poisons into water if refilled and frozen. not enough to kill you though.
i've tried the whole "fridge" theory, and it realy only stays cold for like an hour...
rofl, if you don't put the cap on when it's in the freezer, it wont bulge out. you can do this with any water bottle, they won't break, glass rarely breaks because of ice expansion.
i was just saying that alot of the more expencive bottles are not very flexible and will sometimes crack
(saying that from experience)
<em>&quot;Freezing the bottle right side up is the easiest way to do it, but if you want a bottle that can stand upright, then I suggest freezing it upsidedown. (If you freeze it upright, the bottom of the bottle will push out, making it almost impossible to set down on a table or any surface for that matter)&quot;</em><br/><em></em><br/>Boy you got that right. For the past 4 weeks I have been freezing 2L bottles to cook my fishtank. For some reason, the bottom of the bottle bulges out even though I fill it only 75% full.<br/>
I meant "to cool my fishtank."
If you want to make icecream on the road, use salt!!! :p
I do this every night with larger bottle and it stays cold the whole day. I actually freeze about 90% of the water and have it in my truck. It melts during the day and I have cold cold water almost all day long. Gatorade bottles work great for this also if frozen with water inside.
What I like to do is freeze the water with the bottle on it's side, or slightly slanted. This lets you drink the water stay cold better, as you drink it, because it's in contact with a greater area of ice. I find that if you only have ice on the bottom, you have varying degrees of coldness of the water that you drink.

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