How long does vacuum-sealed fish last at room temperature?

In this short article, we will provide an answer to the question “how long does vacuum-sealed fish last at room temperature?” and the shelf life of fish.

How long does vacuum-sealed fish last at room temperature?

Vacuum packaged fish cannot be kept at room temperature and must be refrigerated to ensure safety. Even throughout the thawing process, it is essential to follow the thawing guidelines provided by the processor.

Before thawing, remove the fish from its vacuum-packed packaging.

For grocery store purchases, frozen fish that has been vacuum-packed is a wonderful choice to consider. Vacuum packaging keeps the fish from drying out since it reduces water loss to a minimum. A method known as vacuum packing, also known as Reduced Oxygen Packaging (ROP), is used to extend the shelf life of frozen foods by reducing the formation of off-odors and texture changes produced by rotting during the freezing process. When food is vacuum packed, surplus air is drawn out of the container, which is then hermetically sealed to keep out contaminants like bacteria. Because of the widespread availability of this kind of fish in supermarkets, it must be handled with care.

The problem

When thawing vacuum-packed fish, the most serious diseases to watch out for are Clostridium botulinum and Listeria monocytogenes, which are both bacteria.

A kind of anaerobic bacteria known as Clostridium botulinum (C. botulinum), it thrives in low-oxygen conditions and is found in soil and water. It generates spores, which allow it to survive in harsh conditions and flourish. 

Quick tips for preparing and eating fish safely

  • Make a distinction between raw and cooked fish.
  • Always wash your hands well with soap and warm water before handling fish.
  • Cleaning utensils, chopping boards, worktops, and plates thoroughly with hot water and soap before adding more raw ingredients is recommended.

What is the shelf life of frozen fish?

Frozen, the fish will keep for 3-6 months, but the texture and flavor may deteriorate as the fish sits there. The freezing of raw lean fish such as tilapia and hake is more effective than the freezing of fatty fish such as salmon, mackerel, and rainbow trout. Cooked fish has a one-month shelf life when frozen before becoming mushy and unpleasant to eat due to the high moisture content. Can smoked fish be kept fresh for an extended time at room temperature?

According to the USDA, smoked fish may be kept at room temperature for up to three hours without losing their freshness or flavor. This is since smoking helps to keep the fish fresh longer.

Can I tell if fresh fish has gone bad if it’s still in its packaging?

It’s essential to remember that bacteria present in food, such as salmonella, are invisible to the naked eye and cannot be detected with the naked eye. It is better to use time as a guide rather than the quality of the fish while fishing for trout. So, if you keep your fish out at ambient temperature for more than two hours or in the refrigerator for more than two days, you should prepare for the worst-case scenario.

What is the shelf life of fish in the refrigerator?

While certain fish may stay longer in the refrigerator than others, the vast majority of fish will only last one to two days in the refrigerator. Immediately after this period, the fish should be prepared (boiled, frozen, or thrown). Cooked fish may be stored in the refrigerator for three to four days.

The fish should be washed and properly dried with a paper towel within minutes of being brought home from the store to preserve its optimum condition. Use an airtight container to keep the fish refrigerated to avoid the formation of unpleasant odors.

The temperature at which fish are stored in the refrigerator has a major impact on the length of time they may be kept alive. Low temperatures, as shown in the graph below, have been proven to substantially decrease the rate of deterioration.

TemperatureDays Fish Stays Good
60°F 16°C2
50°F 10°C3
39°F 4°C6
32°F 0°C12

What temperature encourages the growth of germs in fish?

Food safety is referred to as a “Danger Zone” by the USDA when it comes to food contamination. This concept will aid you in establishing the optimum temperature at which to keep fish to avoid germs from developing in the fish tank.

Microorganisms that are hazardous to humans may grow between 40°F and 140°F (4.4°C and 60°C). The Danger Zone is the term given to the temperature range between 32 and 40 degrees Celsius. Salmonella, E. coli, and Staphylococcus bacteria are three kinds of bacteria that may develop on spoiled food.

Other FAQs about Fish that you may be interested in.

How can you eat raw fish?

Can you cook dead crawfish?

Can you eat a snakehead fish?


In this short article, we provided an answer to the question “how long does vacuum-sealed fish last at room temperature?” and the shelf life of fish.



Was this helpful?

Thanks for your feedback!