Food Hygiene and Safety

Can You Reheat fish?

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Can you reheat the fish? Yes, you can, but you must maintain some food safety and hygiene rules. What rules and how can you reheat fish properly that you will get by reading this blog.

grilled salmon fish served in a white plate with salad and lemon

Can You Reheat Fish?

Can you reheat the fish? The answer is yes! Reheating fish can often produce a dry, rubbery, or mushy dish. That doesn’t mean you can’t heat fish again.

You can reheat fish and have a delicious meal with the correct methods and techniques. The following tips may help you successfully reheat fish.

  • Cool the fish at room temperature before storing it in a clean, airtight container in the fridge. It is best to keep it for three or four days. Ideally, reheat the fish the day after you refrigerate it.
  • If you’re reheating fish that has been frozen, make sure to thaw it completely before reheating.
  • Reheat the fish slowly so it doesn’t overcook and become dry.
  • While reheating, it is advisable to avoid microwave because-
    • Due to excessive heat, it might dry out your fish.
    • Can overcook your fish
    • Spread a fishy smell.
  • You can reheat fish in the Microwave, oven, air fryer, or stovetop, be sure to heat it until it is cooked, and then enjoy!

As per the following method, you can choose the way of reheating fish –


It is perfect for reheating medium to large-sized fish. Preheat your oven to 350°F, place the fish in a dish and cover it with loose foil. Wait 10-15 minutes and flip it over every 5 minutes. You can add oil, any seasoning, spices, or a splash of lemon to liven up and enrich its taste. The time for reheating depends on the density of the fish. If your fish is curried, heat it for some extra time.


You can warm the skillet on low heat. Before frying, add some oil and flip each side carefully. You can take three minutes for each side. Review both sides to see whether it is heating correctly, and you do not overcook the dish.

Air Fryer

Load your fish into the basket and squirt a bit of olive oil over the fillet. Fry for 4 minutes at 320°F and flip it over with tongs. You can heat the fish for 2 minutes and increase the heat to 360°F. Check if the fish is done, by sticking a thermometer into the middle of the fish. The temperature must record at least 145°F.

  • Fried fish brisket on a black plate with garlic and peppers in the background

Frying Pan

Heat the frying pan over a low-medium flame. Coat the pan with oil and heat up for several minutes. Depending on the thickness of the fish, shallow fry it for 1-2 minutes on each side. Wrap the fish with a kitchen towel to absorb excess oil. Let it rest on a dish lined with paper towels. For extra richness, use clarified butter, always preheat the pan before adding oil, and use a non-stick pan.

Food Safety and Hygiene Rules For Reheating Fish

While reheating food, one must strictly follow food safety and hygiene rules and techniques to ensure that there are no issues related to food safety and hygiene. When reheating fish, one must follow essential food safety and hygiene rules.

  • It is essential to cool the cooked food. So it reaches the safe refrigerator-storage temperature of 40° F or below to prevent the growth of bacteria.
  • When reheating cooked fish, heat it until it is steaming hot through. You can use a food thermometer to check the internal temperature and ensure the fish reaches 165°F.
  • Preheat your oven, grill, or pan to the correct temperature.
  • Ensure the fish is cooked thoroughly before retaking.
  • Reheat the fish until it is steaming hot all the way through.
  • USDA suggests covering and rotating the food when reheating in the Microwave. Arrange food items in a covered microwave-safe glass or ceramic dish, and add some liquid if needed. Ensure the covering is Microwave safe, and vent the lid or wrap to let the steam escape.

Yep, making sure food is safe at every step, even when reheating fish, is super important. If not, you could end up with food poisoning – no fun! Knowing all about what causes it, the different types, the signs, and how to treat it is key. With this info, you can keep yourself and your family safe from the nasty effects of food poisoning.

Tasty fried fish on a dark surface paper

How to Defrost Fish?

Before reheating, you need to defrost the fish properly. Safe ways to thaw leftovers are- in the refrigerator, cold water, and the Microwave. These three options are briefly described below-

  • Fridge: Thawing in the Refrigerator takes the longest, but the pieces remain safe. Put the package in a lower refrigerator content, and leave it overnight. After defrosting, the food can be used within 3 to 4 days or frozen again.
  • Cold water: It is a faster method than the fridge, but you have to be more careful. Keep the frozen leftovers in a leak-proof package or plastic bag. If the bag leaks, water could get into the food and bacteria from the air or surrounding environment Foods thawed by cold water should be cooked before refreezing.
  • Microwave: When thawing leftovers in a microwave, continue to heat them until it reaches 165° F as measured with a food thermometer. It is the fastest thawing method, and you can freeze food again after reheating it at a perfect temperature.

Not defrosting fish and other foods correctly can lead to bacterial growth. This is where knowing about foodborne diseases and how bacteria spread becomes crucial for keeping your family safe. Learning about food allergies, preventing contamination, and using methods like pasteurisation and sterilisation to eliminate bacteria is essential. Maintaining kitchen hygiene, avoiding high-risk foods, and ensuring proper defrosting methods are all part of the picture. If you’re interested in learning more, our Food Hygiene and Safety courses are there to help. The Foodborne Diseases Course covers microorganisms, contamination, and ways to ensure your food remains safe to eat.

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How Many Times Can You Reheat Fish?

If you also want to know how many times you can reheat fish, then know that there are no limits defined for reheating fish. Technically, the more you heat your dish, the more you destroy the actual taste of the meal. So, it is best to reheat your fish more than once.

Woman looking for something in a bowl and the fridge is open in the background


Is it Safe to Reheat Cooked Fish?

Reheating fish is perfectly safe, as long as it is done correctly. However, when it comes to reheating cooked fish, you need to be aware of a few things to keep it safe and tasty.

  • You can reheat your cooked fish for once. Reheating fish more than once can cause the formation of harmful bacteria.
  • Make sure that the fish is thoroughly reheated before eating. Finally, undercooked fish can cause food poisoning.
  • Be sure to consume reheated fish within two days. After this time, the fish will start to spoil and could make you sick.


Sometimes you have to face difficulty reheating prawn, tuna, or salmon dishes. For example, if you don’t want that fishy smell from your plate, remember our points, get the best tips again, and enjoy your favourite fillet the second time!
Thanks for reading!

If you’re curious about the best and safest ways to reheat prawn or salmon dishes, we’ve got you covered with two of our blog posts. They break down the process in a simple and straightforward manner so you can quickly grasp and use the techniques while cooking.

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