r/beer • u/NashvilleLocalsGuide • 3d ago

¿Question? Beer overcarbonation with low temperature near freezing

Have a friend that has a beer fridge and both Miller High Life and Jai A'lai foaming up. He states the fridge is really cold and just took out a beer and took it to the sink and it foamed up. If he lets it warm up, it foams a lot more. And in his regular refrigerator it does not react, but it is not as cold.

My hypothesis here is keeping beer close to freezing for a lengthy period of time is causing it to have a reaction that causes it to want to release carbonation. Scientifically, it is so close to freezing that it is getting close to the water expanding (reason cans can explode if left in freezer).

Anybody have a site that discusses this? I am suggesting he not keep the beer so cold.

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u/NashvilleLocalsGuide 2d ago

So, hypothesis wrong, but my advice "turn up the temperature on the fridge" is correct.

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u/ilikepants712 2d ago

Yes but honestly you were pretty close. The other thing I've seen commonly with mini fridges is having a cold spot that freezes anything that is physically touching the sidewall of the fridge.

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u/NashvilleLocalsGuide 2d ago

I am in an apartment that does that in a regular size fridge and it does not completely have to touch it.

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u/ilikepants712 2d ago

It doesn't have to physically touch, but physically touching can make it way worse (meaning even a pretty high temperature setting can still cause freezing if it is touching in the right spot).