As a long-time cat parent, I’ve learned that caring for cats is as much about understanding their quirks as it is about keeping their food fresh and safe. One question I found myself asking early on—especially during busy days—was how long I could leave canned cat food out, particularly if it was still sealed.
If you’ve ever wondered the same, let me share what I’ve learned through experience (and a bit of trial and error).
How Long Can Unopened Canned Cat Food Stay Out?
Unopened canned cat food is pretty resilient compared to fresh or homemade options, but it does have its limits. If the can is still sealed, it’s designed to last for months—even years—on a shelf. However, the key here is where it’s stored.
Room Temperature Matters
Most manufacturers recommend storing unopened canned cat food in a cool, dry place. Ideally, that means a spot where the temperature stays between 50°F and 100°F (10°C to 38°C). If you’ve left an unopened can on the counter or in a pantry within this range, it’s perfectly fine for several months until its printed expiration date.
However, leaving it in extreme temperatures—for example, near a sunny window or in a hot car—can cause the contents to spoil, even if the can hasn’t been opened.
Watch Out for Signs of Spoilage
Even if the can is unopened, always check for:
- Bulging or dented cans: This could indicate bacteria growth inside, and the food might no longer be safe.
- Leaks or rust: Any damage to the can’s integrity can compromise the food inside.
How Long Can Opened Canned Cat Food Stay Out?
If the can has been opened and left out, the rules change drastically. Cats can be picky eaters, but they also deserve safe food, so here’s what I follow:
1. Room Temperature Time Limit
Once opened, canned cat food should only be left out for 1–2 hours at room temperature. Beyond that, bacteria can start to grow, making the food unsafe for your cat. This is especially true in warmer climates or during summer months when the heat speeds up the spoiling process.
I learned this the hard way with my cat, Milo. I once left his wet food out for “just a little longer” after he walked away from his dish, hoping he’d return for a second helping. Big mistake! He sniffed it later and gave me a look of pure betrayal. Now, I always remove leftovers promptly.
2. Refrigerate Leftovers
If your cat doesn’t finish the food within two hours, transfer the leftovers to an airtight container and refrigerate them. Canned food stored properly in the fridge can last up to 5–7 days. I usually label the container with the date, so I know exactly how long it’s been in there.
3. Rewarming Tips
Cats often dislike cold food straight from the fridge (Milo definitely does). To make it more appealing, I warm it slightly in the microwave—just enough to bring it to room temperature. Be sure to stir it well to avoid hot spots.
Common Questions About Storing Canned Cat Food
1. Can I leave unopened canned cat food in my car?
It’s not ideal. Cars can get extremely hot or cold, depending on the weather, which can compromise the safety and quality of the food. If it’s unavoidable, try to minimize the time the food spends in such conditions.
2. What should I do if the can is dented?
Dents can weaken the can’s seal and introduce bacteria. If the dent is deep or near the seams, it’s safer to discard the can.
3. Is it okay to feed my cat cold food from the fridge?
While it’s safe, many cats (like Milo) prefer their food closer to room temperature. Try warming it slightly for a more appetizing meal.
In conclusion, Canned cat food is a convenient option, but proper storage is essential to keep it safe and fresh for your furry friend. If the can is unopened and stored in a cool, dry place, you’re good until its expiration date. However, once opened, the clock starts ticking—so always keep track of how long it’s been out.
For me, sticking to these guidelines has not only kept Milo happy but also given me peace of mind that I’m serving him food that’s safe and nutritious. After all, our cats deserve the best we can give them!