Can You Eat Canned Tuna After Its Expiration Date?

Can You Eat Canned Tuna After Its Expiration Date?

Does Canned Tuna Expire?
Unlike fresh foods, canned tuna does not have a definitive expiration date. Instead, it comes with a "best by" or "use by" date, which indicates the period during which the product is expected to maintain its best quality. According to the sustainable seafood company Alaska Gold, canned tuna can be safely stored in a cool, dark space for up to 5 years.

Can You Eat Expired Tuna?
Yes, you can eat expired tuna. Canned foods, like tuna, typically have a long shelf life, often lasting several years past the printed date if stored in a cool, dark environment and the can remains sealed. The can’s expiration date usually indicates the point at which the manufacturer can guarantee the best quality, not necessarily when the food becomes unsafe.

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Potential Risks
While canned tuna can be safe to eat past its "best by" date, there are some potential risks to consider:

• Bacterial Growth: After you open it, canned tuna can be exposed to bacteria, especially if not consumed immediately, which can lead to foodborne illnesses. Eat canned tuna soon after opening or refrigerate it. Once opened, canned food can be safely refrigerated for 3-4 days, according to the USDA.
• Chemical Changes: Eating foods past expiration may change their texture, flavor, and nutritional quality. If the can of tuna you’ve opened looks or tastes unappetizing to you, it’s time to throw it away.
• Mercury Content: Canned tuna contains relatively low amounts of mercury, a neurotoxin that can accumulate in body tissues over time and potentially lead to health issues like cognitive impairment, kidney damage, and developmental delays in children. If this is a concern, limit mercury exposure by purchasing light meat canned tuna over white meat.

How to Tell If Your Canned Tuna Has Gone Bad
To ensure food safety, inspect the can for dents, rust, or bulges. If the can appears compromised, do not eat the tuna. After opening, give the tuna a good sniff. If you notice any off or sour odors, it’s a sign that the tuna has spoiled. Also, if the tuna is slimy, has an unusual consistency, or has any discoloration or mold, do not consume it.

How to Store Canned Tuna
Unopened cans of tuna should be stored in a cool, dry place, away from direct sunlight and extreme temperatures. These storage conditions can help extend the can’s shelf life. Once opened, canned tuna should be placed in an airtight container and stored in the refrigerator, consumed within a few days.

The Bottom Line
Canned tuna is generally safe to eat past its expiration (or "best by") date if the can is intact and properly stored. However, it’s always essential to check for spoilage by inspecting the can for damage, smelling the tuna, and checking its texture and consistency before consuming. When in doubt, discard any questionable cans of tuna to prioritize your health and safety.

FAQs

Q: Is it safe to eat expired canned tuna?
A: Yes, canned tuna can be safe to eat past its "best by" date, but it’s essential to store it properly and check for spoilage.

Q: Can I store canned tuna in the pantry?
A: Unopened cans of tuna should be stored in a cool, dry place, away from direct sunlight and extreme temperatures.

Q: What are the potential risks associated with eating expired canned tuna?
A: Potential risks include bacterial growth, chemical changes, and mercury content.

Q: How do I know if my canned tuna has gone bad?
A: Check the can for damage, smell the tuna, and inspect its texture and consistency. If it looks or smells unappetizing, it’s time to discard it.

Q: Can I refrigerate opened canned tuna?
A: Yes, opened canned tuna should be refrigerated in an airtight container and consumed within a few days.