Here's why:
* The mechanism: Party poppers rely on a small explosive charge to launch confetti or streamers. This charge is usually a small amount of gunpowder or a similar substance. Once it's ignited, the chemical reaction is complete, and the popper can't be reused.
* Safety: Reusing a party popper is extremely unsafe. The explosive charge might not have completely burnt, leaving a potentially dangerous residue. It's also possible the mechanism itself could be damaged, increasing the risk of malfunction.
Instead of trying to reuse party poppers, it's best to purchase more for any future celebrations.