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Author Topic: Why does vodka pour slower from a bottle with a valve when its very cold?  (Read 7713 times)

Offline Emilio Romero

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I have a vodka bottle in my freezer (very nice habit ;)). The bottle happens to have a valve (frustrating after several servings ::))... I've noticed that when I pour vodka from a bottle at room temperature it flows faster than when I pour from the chilled bottle... why?

Thanks



 

Online Bored chemist

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The non-answer to this is that vodka, like many things becomes more viscous when it's colder.
There are weak bonds called hydrogen bonds between the molecules of alcohol and water in the vodka (and also between water and water or alcohol and alcohol).
These bonds get disrupted by thermal motion of the molecules at higher temperatures so the stuff becomes runnier.
Gases generally become more viscous when they are hotter.
 

Offline Don_1

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Try taking off the valve and fitting a teat from a baby's bottle instead.
 

Offline Chemistry4me

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Better still, why don't you give the bottle of vodka to me and I'll have a try.
 

Offline Emilio Romero

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Let us all do it and establish international vodka day  ;D
 

Offline wolfekeeper

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Reminds me of a question I once read online:

"I keep my vodka in the freezer, and normally it's all nice and syrupy, but today I find that it's frozen on me. How come?" ;)
 

Offline Emilio Romero

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frozen??? no way... it will not freeze at regular freezer temperatures... something was wrong with that vodka  :(

at what temp can we make vodka ice cubes? (great for vodka tonics ;D)
 

Offline wolfekeeper

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frozen??? no way... it will not freeze at regular freezer temperatures... something was wrong with that vodka  :(
Like what? What can possibly go wrong with something as simple as vodka?
 

Offline Emilio Romero

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it may be a "falsified" vodka...   [xx(] [xx(] [xx(] cheap everything bottled and labeled as if it was premium...  >:(
 

Online Bored chemist

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frozen??? no way... it will not freeze at regular freezer temperatures... something was wrong with that vodka  :(
Like what? What can possibly go wrong with something as simple as vodka?
Someone can steal it and replace it with water.
 

Offline wolfekeeper

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Yup, very probably it was somebody watering down the vodka to make up for 'losses' [:0]
 

Offline Don_1

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Do they make 'alcohol free' vodka? Apart from water, that is. It wouldn't surprise me if some brainless burk did!
 

Offline Chemistry4me

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Offline Emilio Romero

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I'm impressed...
But shouldn't it be called non-alcohol vodka, or alcohol-free vodka...  ;D
What I really believe is that this stuff is from the ACME brand, the Coyote drank it out of frustration when he failed in his attempts to catch the roadrunner... The label reads "ACME: non alcoholic vodka, just add alcohol"  ;)
 

Offline Chemistry4me

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I still doubt the existence of this non-alcoholic vodka...
 

Offline Emilio Romero

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same here... ::)
 

lyner

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Non-alcoholic Vodka.
Sold in litre bottles, part filled with water.
The lower the level, the higher the original proof of the Vodka, so the more expensive the bottle would be. (Much less tax to pay, tho.)
 

Offline Emilio Romero

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Sold in litre bottles, part filled with water.

so it is still water with some alcohol, thus alcoholic...???
 

Offline Chemistry4me

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It's a trick I tell you.
 

Offline CZARCAR

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u can squeeze a plastic bottle
 


Offline SeanB

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You can make vodka ice cubes, using cheap vodka and dry ice. If you want to freeze the high alcohol content stuff, you will need access to some liquid nitrogen, preferably in a dewar flask, and some steel molds to cast the ice cubes.
 

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