When i put a bottle of beer in the freezer?

Question

it does'nt freeze for around 20 minutes. BUT when i pour it into a glass it does freeze and resembles a beer slush puppy, BUT in the bottle it reamains liquid. Why?

Answer 1

enjoy the frosty glug. don't question it

Answer 2

Because beer contains liquid alcohol and C02 or carbon dioxide. These two substances do not freeze. The water on the other hand - another very important ingredient of beer, does freeze. This combined makes it that your beer looked like slush.

If you leave the beer in the freezer overnight, the bottle will explode or burst as water expands when it is frozen.

Answer 3

I'd guess around 2 hours. The alcohol should bring the freezing point around the mid 20's. Depending on the temperature of the bottle to begin with, and considering a 12oz bottle. From room temperature, I would assume 2 hours would be a safe point. I've never tested this myself, I'd prefer not to clean beer from all over my freezer. :)

Answer 4

It is below freezing point, but hasn't started to crystalize, yet. The inside of an old glass is a lot rougher than the inside of a new bottle and it provides surfaces for the ice to crystalize one and starts a chain reaction of crystalization. It takes less effort for molecules to join onto a crystal that has already started than it does to start forming a new crystal. If you drop some of the "slush" into the bottle, the rest of it will freeze.

You can see this sometimes just by taking some supercooled liquid out of the freezer and shaking it - boom - it will crystalize right before your eyes without even pouring it into a glass.

Answer 5

Because water expands when it freezes, the liquid in a sealed bottle becomes highly pressurised, also, the gas escapes from solution to increase the pressure, and so the stuff stays liquid.
You are taking a terrible risk of injury from exploding bottles doing this, and even worse, you could make the beer undrinkable

Answer 6

The chilled liquid has a smaller temperature but esentially the same volume and thus a smaller smaler pressure. This is shown by the basic gas law which states that PV=nRT.

Even though the internal pressure has decreased, it is still far greater than the pressure outside the container. Upon opening, the pressure rapidly decreases .

As the volume is staying the same, this decrease in P corresponds to a decrease in T. if the temperature is near freezing, this extra temp drop will drop it down below its freezing point.

Answer 7

I'm not certain, but I think that when you de-pressurise the bottle by opening it, the CO2 bubbles give the water something to form ice crystals with. It is kind of magical.

I remember seeing an experiment with distilled water put into a freezer. It came out liquid. When it was poured into another beaker it instantly froze. Water needs impurities to form ice crystals.

Answer 8

It's because of the CO2 leaving solution in the glass. When the CO2 leaves solution (i.e. fizzes) it takes energy to do this. This energy is taken by a slight reduction in temperature local to the bubble. This is enough to cause partial freezing.

Can be done with a bottle of 7-up, and if at just the right temperature produces tiny needle-like ice crystals to produce a great drink. Beer, on the other hand is more frothy.

Answer 9

This happens because the glass is warm and therefore reacts with the colder beer, However when left in the cold bottle this will not happen

Answer 10

the pressure, makes it much harder to freeze in the bottle, but it will eventually freeze and more than likely crack your bottle.you poor it into your glass the pressure is gone but the liquid is still at a sub zero temperature and then freezes (to some extent)

Answer 11

i'm pretty sure freezing beer probably isnt a good idea in the first place seeing as alcohol and water have different freezing points. you dont want to get alcohol poisoning.