This is a great party trick or anytime cool-down treat — by shaking up an unopened bottle of soda before cooling it for a few hours, you can make an instant slushie of any flavor you want.
Here’s the process:
1. Get a room-temperature bottle or can of soda.
2. Shake it up violently to increase the pressure. This pressure is what will keep the soda from freezing even when it’s super-cooled.
3. Place the soda in the freezer for about three hours. In the video below the 500-milliliter sodas are chilled for 3 hours and 15 minutes.
4. Take out the soda bottle and open and close the cap quickly, before inverting the soda. The liquid will freeze into a carbonated slush.
Here’s the process described by Grant Thompson. If you don’t believe us, watch it happen: