How to Tell if Swordfish is Bad?

If you are curious in How to Tell if Swordfish is Bad, read on. Many seafood enthusiasts appreciate swordfish’s rich, slightly sweet flavor and meaty texture. A swordfish fillet should have a firm, juicy texture and an ivory-pink color. It should not be damaged or dried. The steak has gone wrong if it has a brown or green color and a horrible odor. Swordfish is valued for its meaty texture, which makes it perfect for various cooking methods, including grilling. Lightly press the steak or fillet to see if a swordfish steak or fillet is good.

sword fish

When seafood starts to go wrong, it develops slime on the surface. The more slime accumulates on the surface, the more it spoils. If the fish feels sticky to the touch or has slime visible on its surface, it should be discarded.

What is Exactly Swordfish?

Large, highly migratory predatory fish with long, flat, pointed bills and swordfish are also called broadbills in some nations. Though elusive, they are a popular sport fish in the billfish category. Swordfish are elongated, round-bodied fish that lose all of their teeth and scales by reaching adulthood.

These fish can be found in tropical and temperate parts of the Atlantic, Pacific, and Indian Oceans and can be found from near the surface to a depth of 550 m (1,800 ft), with an exceptional 2,234 m. They typically reach 3 m (10 ft) in length, with a maximum reported length of 4.55 m (14 ft 11 in) and a weight of 650 kg (1,430 lb).

How to Tell if Swordfish is Bad?

Swordfish may reach lengths of over 14 feet and weights of over 1,400 pounds. Because whole swordfish are not offered in local grocery shops due to their large size, the customer must determine the quality of the fish primarily on the appearance of the steak. Here are some ways to find out: How to Know if Swordfish is Bad?

Sign Tell if Swordfish is Bad

  • Coloring is the most obvious indicator of the quality of a swordfish steak. The steaks will be mostly pink with some red streaks along the outside.
  • Fillets from a healthy swordfish will have a near-translucent appearance. Swordfish have roughly 30% fat. Therefore a steak will gleam under a light.
  • A bloodline runs down the length of the fish, which may appear unattractive but is entirely safe to consume when cooked properly. In the United States, most chefs and fishmongers will remove the bloodline before it reaches the client.
  • However, any brown or green coloring is a sign that the fish is wrong and should be discarded.
  • The fish should be discarded if the bulk of the piece appears like the bloodline, which means the color is more red than pink.

Swordfish is valued for its meaty texture, which makes it perfect for various cooking methods, including grilling. Lightly press the steak or fillet to see if a swordfish steak or fillet is good. It should have a fresh, clean surface and feel slightly substantial to the touch. When placed on a grill, the steak should be able to keep its shape.

Important Facts About Swordfish

Here are some essential facts related to swordfish:

Bring On The Heat

When it comes to controlling their internal body temperature, swordfish are ectothermic creatures that rely on external heating mechanisms. On the other hand, these animals have unique organs directly near to their eyes that warm both their eyes and their brains. The capacity to heat their eyes improves the quality of their vision, which improves their hunting ability.

One Is The Loneliest Number

Swordfish do not travel in groups and are frequently spotted alone. These creatures can sometimes be seen basking on the surface or leaping out of the water in a substantial leap.

No Predators, No Problem

Natural predators are uncommon for full-grown swordfish, typically 4-5 years old. Although they’re frightening prey, shortfin makos and killer whales hunt on juvenile swordfish. A broken sword has been discovered in the heads of certain makos.

Fast And Furious

Swordfish and marlin are among the ocean’s fastest and most powerful fish. When one of these sports fish gets hooked, they have been known to plunge quickly and violently that their swords collide with the ocean floor. Ouch.

One Fish, Two Fish, Red List, Swordfish

The Natural Resources Defense Council of the United States released a communications campaign in 1998 to raise awareness about the overfishing of this exquisite treasure. The slogan for the campaign was “Give the Swordfish a Break,” which was a huge hit. Because of its success, 750 American chefs have eliminated swordfish from their menus. Since then, the ICUN has designated the animal as a ‘Species of Least Concern.’

Shelf Life of Swordfish

The swordfish is a delicate and delicious fish. It lumps white meat with a silky texture and a moderate flavor. Swordfish has a short shelf life, so you won’t be able to keep it for very long, whether it’s fresh or cooked. Fresh fish can be preserved in the refrigerator for 1-2 days or frozen for 2-3 months. On the other hand, cooked food can be refrigerated for 2-3 days and frozen for 2-3 months. It’s not good to leave it frozen for longer than the recommended time. The botulinum toxins can increase if stored, and if you eat such fish, you will be poisoned.

Swordfish is a mild-tasting fish that can be eaten by people who don’t like fish. It has white flesh, yet it also has a meaty flavor. Fresh swordfish is readily available in the market. The white areas of the flesh have a moderate flavor, while the red ones have a robust flavor, so pick the ones you prefer carefully. Ensure the meat does not have a stale odor and that it is neither too firm nor too lean and meek.

How Long Does Swordfish Last in the Fridge?

sword fish

Within two days of purchase, all seafood should be prepared or eaten. Swordfish, once d, can be preserved for up to three days if stored properly.
Following the prescribed techniques for keeping raw or cooked seafood will preserve the flavor of the diner and the fish.

Uncooked Swordfish

It is impossible to tell how long that fish has been out of the water, so it is best to cook it on the same day it is purchased, but if not, it can be stored for up to two days.

Cooked Swordfish

Any meal was eaten the next day should be chilled as soon as possible after cooking and not left out at room temperature for more than four hours. Food safety experts refer to the temperature range between 70°F and 120°F is referred to as the “Danger Zone.” While dramatic, it highlights that germs grow swiftly at this temperature. Within four hours of cooking, chilled swordfish should be refrigerated to below 70°F and stored in an airtight container. Swordfish should be kept in your refrigerator at 40°F or below, according to the Food and Drug Administration (FDA).

Can Swordfish Make You Sick?

Undercooked swordfish, as well as considerable amounts consumed over a long period, might cause disease. Due to the high levels of mercury in swordfish, pregnant women and young children should avoid eating it.
A foodborne sickness is when you become sick from eating something. If seafood, such as swordfish, is not cooked or appropriately kept, it might cause foodborne illness.
All seafood should be refrigerated at 40°F or below until ready to cook. Swordfish should be cooked to an internal temperature of at least 145 degrees Fahrenheit. When cooking at home, it is critical to clean and disinfect everything that comes into contact with the fish during the cooking process, including knives, cutting boards, kitchen utensils, and, most importantly, the thermometer.


Swordfish is a premium fish with a sweet flavor and a meaty texture. Its hardness makes it perfect for various cooking methods, including grilling. Swordfish can be eaten by the great majority of people with some common-sense precautions and a basic understanding of proper food handling. Pregnant people and small children should avoid eating the fish, but everyone else can enjoy it as a special treat.
The best technique is to smell and look at the swordfish: a sour smell, poor color, and slimy texture are all symptoms of a lousy swordfish; discard any swordfish with an off scent or appearance.
To prevent freezer burn, overwrap the original retail packing with airtight heavy-duty aluminum foil, plastic wrap, or freezer paper, or place the package inside a heavy-duty freezer bag.