Here’s a common fear: “Will old water grow bacteria or mold?” Only if you open it first. Once you crack that seal, airborne germs jump right in like party crashers. A closed bottle is sterile. A opened bottle? That’s a petri dish with a straw.
So if you find a sealed bottle from 2018 in your garage, and it’s not dented, bulging, or weirdly colored, you’re probably fine. The water might taste a little “plastic-y,” but it won’t make you sick. (Unless you count a sad taste as an illness. In that case, call a taste doctor.)
The “Hot Car” Warning (A Dramatic Reenactment)
Imagine this: your water bottle is in a car on a 90-degree day. That plastic gets mad. Heat speeds up chemical leaching, and it also creates a cozy environment for bacteria if the bottle was ever opened. Seriously, don’t drink from a bottle that’s been baking in a hot car for weeks. That’s not a water bottle anymore—that’s a science experiment you don’t want to name.
The rule of thumb: if the water smells like a swimming pool or tastes like a raincoat, don’t drink it. Your taste buds are not lying to you.
How Long Does Bottled Water Last - Decoding the Expiration Dates
