[Rusty Heap]

Interesting unintended science experiment.


Beer Fridge in my shop was super chilled, beer sloshing back and forth in the bottles. It's in a liquid state.

Upon opening the cap, releasing the CO2 carbonation the top half of beer instantly turns to un-pourable slushy ice crystals.

Interesting. That releasing the gases that is in suspension in the liquid, creates enough of a cooling drop to freeze to ice.

Thermal Physics says when you compress gas it gets hot, when you vert gas it does get chilled.

When I release air out of my scuba tank, pressurized to 3000 psi, and drain the whole tank the valve at the top will start to freeze ice cold

But beer is only pressurized to 5-7 psi at serving.


Any other theory's?