I’ve seen the videos of the coke machines in Hong Kong that sell self freezing Coke and I’ve seen videos of the same trick with beer. This video teaches you how to do it yourself!
Now I’ve tried this trick and it didn’t quite work for me. The Coke ended up icing up in the freezer before I took it out so I didn’t get to see the instant freeze stuff. But I did end up with a nice, ice cold glass of Coke. I suspect I didn’t shake it up enough initially to build up the pressure. It’s likely I’ll try this again and again until I get it right because I want me a Coke slushy.