How do you know if canned fish has gone bad?

* Dented, rusted, or bulging cans: These are all signs that the can has been compromised and that the fish inside may be spoiled.

* Cloudy or discoloured liquid: The liquid in canned fish should be clear and colourless. If it is cloudy or discoloured, it may be a sign that the fish has spoiled.

* Off odour: Canned fish should have a mild, fresh odour. If it smells fishy, sour, or rancid, it may be spoiled.

* Soft or mushy fish: The fish in canned fish should be firm and flaky. If it is soft or mushy, it may be spoiled.

* Dark or discoloured fish: The fish in canned fish should be light pink or white. If it is dark or discoloured, it may be spoiled.

* Strange taste: Canned fish should taste fresh and mild. If it tastes sour, bitter, or rancid, it may be spoiled.

If you notice any of these signs, it is best to discard the canned fish. Do not eat spoiled canned fish, as it can cause food poisoning.