Water inside water bottle froze up right after I removed it from the freezer

Question

So here’s what happened, I put water bottles inside my freezer, and looked like it was still liquid inside. But when I removed it, I saw it freezing from top to bottom (not completely frozen, but hardened). What exactly happened?

In: 479

Answer 1

This happens every day in my fridge. The water bottles are supercooled because the thermostat is stuck. It’s an ‘86 marine fridge, so I’m not messing with it.