Firefighters Notify Public Of Dangers Of Leaving Water Bottles In Cars

As summer temperatures climb, fire departments nationwide are warning the public about an often-overlooked hazard—leaving water bottles in cars. Though it seems harmless, this common habit can pose serious fire risks.

How It Happens

The danger lies in basic science. When sunlight passes through a clear, water-filled plastic bottle, it acts like a magnifying glass, concentrating light on one spot. If that spot is a flammable material—like a car seat—it can ignite within minutes under direct sunlight. Firefighters have demonstrated how quickly this can happen.

Real Incidents

One case in Idaho involved a firefighter whose car seat began smoldering due to a water bottle focusing sunlight. Luckily, he caught it in time before major damage occurred.

How to Stay Safe

To reduce the risk, never leave plastic water bottles in cars exposed to sunlight. If necessary, store them in shaded areas like the glove compartment or under a seat. Opting for insulated or opaque bottles can also help.

Spreading Awareness

Fire departments use social media, news outlets, and celebrity partnerships to raise awareness. In California, TV actors have helped create educational campaigns, increasing public engagement.

It’s a small habit with potentially big consequences. Avoid leaving water bottles in your car—your safety could depend on it.