If you’re not going to finish that opened bottle in 48 hours, freeze it. Pedialyte freezes into a slushy-like consistency that’s surprisingly great for hot days or post-workout recovery. Just pour it into an ice cube tray or a popsicle mold. You’ll get electrolyte popsicles that last for weeks.
This is way better than letting it sit in the fridge until you forget it exists. Plus, kids love the frozen version—and it’s a sneaky way to keep them hydrated without the “drink your medicine” fight. You’re welcome.
How Long Is Pedialyte Good For After Opening - Chesbrewco
The sniff test (it’s not perfect, but it helps)
After 48 hours, give it a sniff. Does it smell sour, yeasty, or just off? Toss it. If it smells like normal sweet Pedialyte, you can still use it—but only if you’re a healthy adult. For immune-compromised folks or infants, stick to the 48-hour rule like it’s a law of physics.
I like to think of it this way: if you wouldn’t drink a leftover smoothie that’s been sitting out, don’t risk old Pedialyte. Trust your nose—it’s evolved over millions of years to keep you from eating bad things.
