How Long Does Canned Tuna (Opened) Last?
Canned tuna after opening, chunk, solid, and albacore varieties.
The Short Answer
Canned Tuna (Opened) lasts 3–4 days in the refrigerator when stored properly at 40°F or below. For longer storage, canned tuna (opened) can be frozen for 2–3 months while maintaining good quality. These times are based on USDA food safety guidelines and assume proper storage conditions.
Storage Times at a Glance
Source: USDA FoodKeeper | Last verified: March 19, 2026 | Our methodology
Never store leftover food in an opened metal can. The metal reacts with air and the food's acidity, creating off flavors.
How to Store Canned Tuna (Opened)
Transfer opened tuna from the can to an airtight container or glass jar. Do not store in the opened can.
How to Tell if Canned Tuna (Opened) Has Gone Bad
Look for these signs that canned tuna (opened) has spoiled: strong fishy or ammonia smell, discoloration, slimy texture.
The Professor's rule: When in doubt, throw it out. No meal is worth food poisoning.
The Bottom Line
Properly stored canned tuna (opened) stays safe for 3–4 days in the fridge. Always store in airtight containers, refrigerate within 2 hours of purchase or preparation, and trust your senses. If something looks, smells, or feels off, discard it regardless of how many days it has been. Freezing is always an option if you will not use it within the refrigerator window.
Frequently Asked Questions
Unopened canned tuna lasts 2-5 years in the pantry when stored in a cool, dry place.