Canned fish, when properly stored, can have a relatively long shelf life due to the canning process, which is designed to preserve the fish and prevent spoilage.
Canned food is generally pretty long-lasting, especially if you store it properly.
Here's a general guideline for how long open canned fish can stay fresh.
Unopened Cans
Unopened canned fish can last for an extended period, often well beyond the "best by" or "use by" date on the can.
Depending on the type of fish and the storage conditions, unopened canned fish can typically remain safe to eat for 1 to 3 years or even longer.
Opened Cans
Once a canned fish has been opened, its shelf life is reduced because it is exposed to air and moisture, which can promote bacterial growth.
To extend the freshness of opened canned fish, you can do that.
Refrigeration
Place the opened can in the refrigerator and use the fish within 3 to 4 days.
Transferring
If you do not plan to use the entire contents of the can at once, transfer the unused portion to an airtight container and refrigerate it promptly.
Odor and Appearance
As with any food, pay attention to the odor and appearance of the canned fish.
If it develops an off-putting odor, a slimy texture, or any signs of mold, discoloration, or spoilage, it is best to discard it.
