Are old fireworks safe to use?

If stored well sealed in a dry place of very low humidity, and they are intact and undamaged, old fireworks should be safe to use. However, if old fireworks have been exposed to water or you can see visible damage, such as loose fuses, dented cones, lost fins, missing sticks, etc., then it is time to dispose of them. If the fireworks have been subjected to moisture/water or have been damaged, dispose of them appropriately or take them to your local fire station for proper disposal; handle with great care! If old fireworks that have been stored dry and kept intact fail to light, do not approach them for 30 minutes, then soak them and dispose of them as outlined in the article above.