Bad seafood can make you very sick. Fortunately, it is usually pretty easy to tell by smell, feel and appearance if fish is going bad. Read on to learn how to tell when fish goes bad.
Think about how long the fish has been out for. Fresh fish should not be left out at room temperature for longer than half an hour or so, or in the refrigerator for more than a few days. If it is left for too long, it can go bad. Press on the flesh. If the fish is fresh, it should spring back. If it feels mushy, the fish might be going bad.
Look at the fish. If the flesh has a dull color or the fish looks slimy, it is probably going bad. Err on the side of caution when cooking fish. You really don't want to eat bad fish. As always, it helps to have a trusted fishmonger at your service!