Here’s where I stop joking. If the bottle is dented, cracked, or bulging, throw it away. A damaged seal means bacteria or mold got in. That’s the only real health risk.
Also, never drink water from a bottle that’s been sitting in direct sunlight for months. Ultraviolet light breaks down plastic even faster. You might get a hit of antimony (a metal used in some plastics). Not enough to kill you, but enough to make your inner health guru furious.
And glass bottles? They’re the cool kids. Glass doesn’t leach, so the water stays pure practically forever. But if the glass is chipped or the cap is rusty, again, skip it.
What about “forever water”?
You know those reusable bottles you left in your gym bag for three weeks? That’s not just water. That’s a horror movie soundtrack playing in your mouth. Even metal bottles grow biofilm if you don’t wash them. So, “bad” water is really about what’s in the container, not the H2O itself.
Can Bottled Water Go Bad After Opening | Explora Madeira
Bottled water in a sealed, untouched plastic bottle? It’s safe to drink indefinitely, as long as the bottle is intact and stored in a cool, dark place. But it’s also soul-crushingly boring after year five.
