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Self Freezing Coke Vending Machine

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6 Littlegrey Comments:

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November 9th, 2010 at 2:14 pm cynnicysm says:

this is an awesome idea! my only bit of insight is that the coke is somehow kept below its freezing point in liquid form (which is possible) and when you open it and drink some, you put the ratio of water to air (? maybe, not sure) into a level that cannot sustain liquid form when below the freezing point, so it just flash freezes? anyone? verification?

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November 9th, 2010 at 2:47 pm crashnburn says:

I think you are on the right track. The coke is kept right near freezing. When you open it up to take a drink you are releasing the carbon dioxide. Once you flip it upside down you release even more. This release lowers the liquid pressure causing the liquid to freeze easier and quicker. The same thing can be done at home by putting it in your freezer for 3-5 hours, at least that is how it is done with a bottle of beer.

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November 9th, 2010 at 2:55 pm cynnicysm says:

oh yeah, and i forgot about nucleation points. ice crystals have to have something to form on, and bubbles make perfect little ice carriers. so you take a swig to lower the level or the drink so it wont spill out and the flipping upside down releases bubbles and forms a ton of nucleation points, that the ice can quickly form on. pretty sweet still.

November 10th, 2010 at 3:29 am jewjube says:

no. no. no. NO! You guys are obliviously wrong... it obviously witchcraft.... LOL

November 13th, 2010 at 8:27 pm Caster says:

Thanks for explaining the process, it bugged me.

November 18th, 2010 at 12:20 am Optimist says: