Yes, dog food can go bad. Both dry and wet dog foods have a shelf life, and they can spoil or lose their nutritional value over time. Dry dog food typically lasts longer than wet food, but both should be stored properly to maintain their freshness.

1. **Expiration Dates**: Always check the expiration date on the packaging. This date indicates until when the food is expected to maintain its quality.

2. **Storage Conditions**: Store dog food in a cool, dry place. For dry kibble, it’s best to keep it in its original packaging or in an airtight container to prevent moisture and pests from getting in. Wet food should be refrigerated after opening and used within a few days.

3. **Signs of Spoilage**: Look out for changes in smell, texture, or color. If dry food smells rancid or has an off-putting odor, or if wet food has an unusual smell or shows signs of mold, it's best to discard it.

4. **Nutritional Value**: Even if the food is not visibly spoiled, it may lose its nutritional value over time. Feeding your dog old food may not provide them with the essential nutrients they need.

5. **Homemade Dog Food**: If you prepare homemade dog food, it can spoil more quickly than commercially prepared food. Always refrigerate leftovers and use them within a few days.

In summary, yes, dog food can go bad, and it's important to check for expiration dates, store it properly, and look for signs of spoilage to ensure your dog stays healthy and happy.

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Topics covered in this question:

Dog Health Dog Food Pet Care