Can canned tuna go bad?

In this brief study, we will answer the question, “can canned tuna go bad?” Additionally, we will discuss the shelf life as well as the storage of canned tuna. Moreover, we will discuss freezing suggestions and the thawing of canned tuna.

Can canned tuna go bad?

Yes, canned tuna can go bad after it has been expired. However, it is also important to store your canned tuna properly to prevent spoilage by the microbial attack.

What is the shelf life of canned tuna?

The shelf life of shelf-stable canned goods is often very long; the less acidic kind, in particular, lasts somewhat longer than the acidic variety. Specifically, canned tuna may be maintained at room temperature for up to three to five years at its peak quality if stored correctly. That’s an amazing amount of time, don’t you think?

Tuna, on the other hand, has a shelf life of three to four days in the refrigerator and three months in the freezer after it has been opened. As a consequence, only open the tuna can when you’re ready to use it, and handle it with more caution after that.

Is canned tuna safe to eat after the expiration date has passed?

Indeed, the expiration date is not printed on the label; rather, it is the best-by date, which indicates that the tuna is at its finest if consumed before that date. Some cans, on the other hand, expressly indicate that they should be eaten soon after being opened.

What is the best way to tell whether canned tuna has gone bad?

If there is nothing wrong with a tuna can that has not been opened, there is likewise nothing wrong with the tuna that has been opened. You may be certain that the tuna will not deteriorate as long as you store it in the can correctly and exactly, without causing damage.

Nonetheless, if the can exhibits indications of degradation, such as denting, rusting, bulging, or leaking, discarding it is the safest course of action to prevent health poisoning and other consequences of prolonged exposure. This degradation may be the result of storing the can incorrectly, such as in direct sunlight or next to an oven or stove, among other things.

Whenever canned tuna is opened, any change in color (from bright red or light pink to dark brown or even green owing to mold development), texture, or smell may indicate that the tuna is rotten and should be thrown away. After some time has passed, if you do not properly store the can, the oil will begin to degrade, at which point you should destroy it.

Other FAQs about Tuna which you may be interested in.

How much tuna can a cat eat?

Can cats eat tuna every day?

What is the best way to keep tuna in a can?

As previously mentioned, canned tuna may be kept at room temperature, refrigerated, or frozen depending on the storage method used. Unopened canned tuna should be stored in the pantry if it is dry, cool, and dark. If the pantry meets these criteria, it is the perfect place.

Leftover tuna should be refrigerated promptly if it is going to be used within a few days of being prepared. It is recommended to freeze canned tuna if you want to prolong the shelf life of the tuna so that you may use it later (for example, two or three months). The simplest method is to make sure your tuna is fully covered at all times to avoid it collecting odors from other items in your refrigerator or freezer.

Is it possible to freeze tuna in a can?

When it comes to canned tuna, you may freeze it in the freezer, especially after it has been opened, to prolong the shelf life by up to three months.

Suggestions for storing canned tuna in the freezer

Transfer any remaining tuna to a separate container to store in the freezer. Never freeze canned tuna in its original tin can to guarantee the highest level of safety.

Tuna should be flattened from the bottom of a freezer-safe bag to achieve consistent freezing when storing it in the freezer. Additionally, remove as much air as possible from the container before freezing.

What is the proper way to defrost/thaw canned tuna?

Frozen canned tuna should only be defrosted in the refrigerator to ensure the best quality. The tuna should be defrosted completely by removing it from the freezer and placing it in the refrigerator to finish defrosting it. While this process may take many hours, if you want to utilize your frozen tuna the following morning, you can thaw it overnight.


In this brief study, we answered the question, “can canned tuna go bad?” Additionally, we discussed the shelf life as well as the storage of canned tuna. Moreover, we discussed freezing suggestions and the thawing of canned tuna.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.