So, what makes party poppers work their magic? It's actually pretty simple: inside the popper, there's a small explosive charge that's triggered when you pull the string. This charge is designed to be safe and controlled, so don't worry, it won't blow your hand off or anything! When the charge goes off, it creates pressure that shoots out the confetti and makes the popping sound.
How to Use a Party Popper? - No More Fails.. - CherishX Guides
It's kind of like a mini volcano eruption, except instead of lava and ash, you get colorful paper and a fun noise. And the best part? You can use party poppers anywhere, from birthday parties to weddings to just-because-it's-Tuesday celebrations.
