Can you explain the instant freeze water experiment and how it works?

The instant freeze water experiment involves cooling purified water below its freezing point without it turning into ice until disturbed. This can be achieved by using purified water, a clean container, and a freezer set at a temperature below the freezing point of water. When the supercooled water is disturbed, it rapidly freezes due to the introduction of ice crystals, causing the entire liquid to solidify instantly.