Food poisoning is frequently brought on by fish. It is important to know how to tell if fish has gone bad before you cook it. You will need to take into account a few things, such as the fish’s appearance and smell, the sell-by date printed on the package, and the fish’s storage location. We’ll look at how to recognize bad fish in this article. Please keep reading.
How To Tell If Fish Is Bad?
It is customary to cook fish either the same day or within 24 hours of purchase. Examine it carefully both before and after purchasing it.
You should be certain that the fish is fresh before you begin to prepare it because you really don’t want to mess with stale fish. It’s incredibly easy to determine if fish is fresh.
You can tell if something has gone bad by using your senses of touch, smell, and sight. Let’s discuss simple methods for determining whether or not fish is bad.
How It Smells
Since it is fish, you would assume that it would smell fishy. In reality, that is untrue. If fish smells fishy, it probably has gone bad. Another indication of bad fish is the smell of ammonia. If any smell exists at all, it shouldn’t be very strong.
A new smell or no smell at all is what you’re after. It’s acceptable if the fish smells like the ocean if it’s marine fish like salmon, haddock, or cod.
How It Looks
Fish that looks grayish, dull in color, or translucent are indicators that the fish have spoiled. But fish comes in a variety of hues, such as salmon, which should be reddish pink, cod, which should be white, and tuna, which should be a dark red or pinkish hue.
A filet should appear wet and shiny when purchased. If you aren’t sure by just looking at it, use the sniff test and feel it to make sure it’s still fresh.
How It Feels
Fish that feels slimy has likely been spoiled. If it has also gone bad, you might also notice a milky-looking flesh on it. It is normal for fish to feel wet when you first purchase them. However, it should never feel greasy or slimy.
Read The Sell-by Date
The sell-by date should be read first. 2 days after its sell-by date, refrigerated raw fish should be thrown away. In a refrigerator, raw fish doesn’t keep for very long. And shortly after the sell-by date, it begins to spoil. You may be interested in Where Should You Store Raw Fish In The Refrigerator?
Place a raw fish in the refrigerator that you want to keep fresh longer in the freezer. If the fish has a use-by date rather than a sell-by date on the label, don’t keep it after that time.
If fish is not consumed by the date printed on the packaging, it will begin to spoil. Fish can remain edible for 5 to 6 days after its sell-by date if it has been cooked or purchased cooked, and then stored in a refrigerator in an airtight container. I’m worried it’ll have to be thrown away after that time period.
Except for popular smoked salmon, fish that is frozen will stay edible for a lot longer than fish that is refrigerated, whether it is cooked or raw. This product won’t keep for very long, not even in the freezer.

The typical duration is three to six months. You can always freeze salmon on your own by using airtight plastic bags or multiple layers of plastic wrap if you bought it raw or cooked it first.
How Do You Store Fresh Fish?
First and foremost, the fish needs to be cleaned and cut as soon as it is caught. If you can’t do that right away, the freshly caught fish ought to be waiting in a cooler with ice.
In order for the melted ice to drain away from the fish, the cooler’s bottom ought to have a false base. The fish shouldn’t be permitted to float in the water. It will soak up water if not.
The water will change the meat’s flavor and texture. If there isn’t a false base and you are far from home, make a pit stop and drain the water before continuing. To prevent the spread of bacteria that cause food-borne illnesses, wash your hands both before and after handling raw meat.
Moreover, wash the raw fish. Any extra dirt and slime will be eliminated this way. A sharp knife and a lot of water are required for the cleaning process. Before cutting the raw fish, thoroughly wash it under cold running water.
To make cooking larger fish easier, cut them into filets and steaks. Also, keep in mind that the thickness affects how long fish needs to fry in a deep fryer.
Fish is classified as either lean or fat for the freezing process. The quantity of fat in the meat will determine this. Salmon, tuna, trout, and mackerel are examples of fat fish. On the other hand, the majority of freshwater fish are considered lean fish.
Pretreat the fish before freezing it to preserve its quality. Lean fish needs to be submerged for 20 seconds in a brine made from 1/4 cup salt and 1-quart cold water. In turn, less water will be lost during thawing and the flesh will become harder. 20 seconds should be spent submerging the fatty type.
Prepare a mixture of 1 quart of cold water and 2 tablespoons of crystalline ascorbic acid for fat fish. By doing this, rancidity and flavor change can be controlled. the subsequent fish freezing techniques after that.
Final Words
It is crucial to thoroughly inspect the fish you purchase before it is packaged. Asking them to smell it at the counter is nothing to be afraid of. Although the Fish shelf life information on Eat By Date’s reputation for dependability, individual circumstances can change.