How Long Can Opened Wet Pet Food Stay Fresh?

There’s something oddly satisfying about a can of wet food popping open, especially if you're a cat or dog who knows that sound means mealtime. But what happens after the bowl is full and food remains in the can? How long can it sit in the fridge before it’s no longer safe?

As loving pet owners, we strive to provide our beloved animals with the healthiest and safest food options to ensure their happiness and well-being. When it comes to opened wet pet food, freshness isn’t just about taste—it’s about health.

Let’s dig into what you need to know to keep your pet’s meals both appetizing and safe.

Why Wet Food Spoils Faster

Unlike dry kibble, wet food is rich in moisture, usually containing 70-85% water. While it's fantastic for keeping your pet hydrated and adds some tasty flavor, it also sets the stage for bacteria to thrive. The clock starts ticking once the can is opened and exposed to air.

It's crucial to pay extra attention to pets that have delicate stomachs or compromised immune systems. Spoiled pet food can lead to digestive issues like vomiting or diarrhea, or worse, depending on the level of contamination.

The Golden Rule: 5 to 7 Days in the Fridge

Once you’ve opened a can or pouch of wet food, the safest approach is immediately storing any unused portion in the refrigerator. Ideally, it should be kept at or below 40°F and used within 5 to 7 days.

Use a tight-fitting lid or transfer the remaining food to an airtight glass or BPA-free container to preserve quality and prevent odor from seeping into your fridge.

And no, covering it with the can’s metal lid or a bit of foil doesn’t cut it. When food is exposed to air, it can start to oxidize, which may dull its flavors and degrade its nutrients even before you can see any signs of spoilage.

Signs Your Wet Food Has Gone Bad

Even within that safe 5-to-7-day window, trust your senses. If something seems off, don’t risk it. Here’s what to look for:

• Unusual Smell: A sour, metallic, or rancid odor is a red flag.

• Change in Texture: It’s time to toss it if it's slimy.

• Mold: Obvious, but essential. Any fuzz or greenish-blue spots mean it’s not safe.

• Color Changes: While some browning can be normal due to air exposure, dramatic changes may signal spoilage.

How Long Can It Sit in the Bowl?

Maybe your pet is more of a grazer than a gobbler. If so, you might wonder how long it’s okay to leave wet food at room temperature.

Most veterinarians recommend a maximum of 2 to 4 hours, especially in warmer environments. After that, bacteria multiply, and what was once dinner becomes a potential health hazard.

To play it safe, serve smaller portions your pet can finish in one go, and refrigerate the rest immediately.

Pro Tips for Serving Stored Wet Food

Cold food from the fridge isn’t always appealing, especially for picky eaters. To bring it back to room temperature, you can:

• Let it sit out for 10–15 minutes before serving

• Warm it slightly by placing the sealed container in a bowl of warm water

• Avoid microwaving unless it’s safe for the container, and even then, stir thoroughly to avoid hot spots

When you take the time to make their meals special, it shows your love and adds a touch of excitement to their day.

Why Storage Matters

Pet food is more than calories—it’s a blend of nutrients, proteins, and vitamins tailored to your pet’s needs. Improper storage can degrade those benefits and expose your pet to harmful bacteria. Even high-quality brands can spoil if mishandled once opened.

That’s why keeping tabs on how long you’ve had that opened can in the fridge is just as important as choosing the right formula in the first place.

Wet food can be a fantastic part of your pet’s diet—full of flavor, moisture, and nutrition. But like any fresh product, it needs proper care once opened. Store it well, use it quickly, and always trust your senses.