Here’s what happens in the freezer.
The secret to supercooled water is in the molecules.
Solid–state molecules are locked together, and molecules in their gas state are few and far between. But water molecules move around a lot, and the secret to supercooling them is to keep them from moving. That way they won’t begin to attach and form together in a lattice–shaped structure. This is how the water “freezes” without actually taking on a solid form!
Water freezing is sort of like the process for putting a puzzle together. At the beginning, it can be overwhelming, complicated, and painfully slow. But those last ten pieces or so are cake. That’s how it is when water molecules freeze—slowly, slowly, slowly, and then all at once. Once they begin to attach and form structures, all the other molecules latch on quickly.
That’s why you’ll want to leave the water in the freezer just long enough to bring it to its freezing point. Just be sure to take it out before the molecules begin to find each other and bond together! For us, 2 hours and 45 minutes was just right!
Carefully remove the water bottles from the freezer. You’re holding frozen liquid! Here’s what you can do with it: