Here’s where I sound like your overly cautious aunt. Heat is the enemy. Not the passage of time. If you leave a plastic water bottle in a hot car for a month, that expiration date doesn’t matter at all. The heat accelerates the chemical show.
Glass Bottled Water Expiration Date at Benjamin Whitley blog
That’s when you get antimony and BPA molecules doing the cha-cha into your water. The date on the bottle assumes you aren’t storing it inside a pizza oven. Assume nothing.
So, if the bottle has been sunbathing, toss it. The date is just a number; the temperature is the real judge. Don’t be a hero.
So, Should You Drink Expired Water?
Look, if the bottle is unopened, hasn’t melted, and looks normal? Go for it. You are not going to spontaneously combust. It might taste like a cardboard box’s memory, but it’s safe. The date is a warning label for the bottle, not the liquid.
But if you open it and it smells like a swamp? Or if the water has turned green? Well, that's not water anymore. That’s a biology project. Do not drink the biology project. That’s not the expiration date’s fault; that’s just life getting weird.
Most of the time, you’re just drinking water that’s been sitting in a plastic timeout. It’s fine. Relax and hydrate.
