
Fish is a delicate meat, and reheating it can be tricky. The main challenge is to prevent the fish from drying out and losing its flavour and texture. While it is possible to reheat fish in a microwave, it is generally not recommended due to the high heat, which can cause the fish to dry out and release a strong fishy smell. Instead, it is better to reheat fish slowly and at a low temperature using an oven, air fryer, or frying pan.
| Characteristics | Values |
|---|---|
| Temperature | Low |
| Speed | Slow |
| Pan type | Non-stick |
| Pan preparation | Preheat the pan, coat with oil |
| Fish preparation | Pat of butter on top, wrap in a kitchen towel to absorb excess oil |
| Fish type | Thick fillets (e.g. swordfish, halibut, salmon) |
| Storage | Airtight container in the refrigerator, no more than 3-4 days |
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What You'll Learn

Avoid the microwave
Reheating fish in the microwave is not recommended. Microwaves use high heat, which can dry out and overcook your fish, resulting in a dried-out, barely edible meal. This method can also cause the fatty acids in the fish to oxidize, producing an unpleasant fishy aroma that can linger in the kitchen or office for hours.
Thin fish, such as tilapia, trout, or flounder, are especially prone to drying out and overcooking in the microwave. If you must use the microwave, it is recommended to use low power and place the fish in a dish with a little water to prevent drying out. Cover the dish with a microwave-safe lid and heat in short intervals, flipping the fish every 30 seconds to ensure even heating.
However, even with these precautions, the microwave can negatively impact the flavour and texture of the fish. It is generally advised to reheat fish slowly and gently using a low-temperature method such as an oven, stovetop, or air fryer to preserve the tenderness, moisture, and flavour of the fish.
For example, when using an oven, preheat it to 275-350°F (135-177°C). Place the fish in a dish and cover it with loose foil to prevent moisture loss. Reheat for 10-15 minutes, flipping the fish every 5 minutes. If your fish is battered or breaded, you can leave it uncovered to maintain crispiness, but be aware that this may result in some moisture loss.
Alternatively, you can shallow fry the fish on a stovetop. Heat a frying pan over a low-medium flame and coat it with oil. Shallow fry the fish for 1-2 minutes on each side, depending on its thickness. Wrap the fish in a kitchen towel to absorb excess oil, and let it rest on a paper towel-lined dish.
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Use a low temperature
Fish is a delicate meat, and reheating it can be tricky. The best way to reheat fish is to use a low temperature and be patient. This is because fish is susceptible to overcooking, which can cause it to dry out and lose its flavour and texture.
When reheating fish in the oven, aim for a low temperature of no more than 350°F (176°C). For an oven that uses Fahrenheit, set it to 325°F (162°C). For Celsius, this is roughly 160°C. Cover the fish with foil if it is unbreaded, and heat it for 15–20 minutes or until it reaches an internal temperature of 158°F (70°C) or higher. If you are using a toaster oven, follow the same instructions, and check on your fish every once in a while.
If you are reheating fish in a frying pan, heat the pan over a low-medium flame. Coat the pan with oil and heat it for several minutes. Shallow fry the fish for 1–2 minutes on each side, depending on its thickness. Wrap the fish in a kitchen towel to absorb excess oil, and let it rest on a dish lined with paper towels to get rid of any excess grease.
If you are using a microwave, it is best to use low power and place the fish in a dish with a little water at the bottom to prevent it from drying out. Set the microwave to 30–40% of its full power and heat the fish in 30-second intervals until it is heated through.
Remember that thicker fish fillets, such as swordfish, halibut, and salmon steaks, tend to reheat better than thinner ones. Thin fish, such as trout, often overcook and dry out.
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Don't reheat thin fillets
Fish is a delicate meat, and reheating it can be tricky. While it is possible to reheat fish, it won't taste as good as it did when it was freshly cooked. Thin fillets, in particular, tend to dry out and overcook very quickly, so it's best to avoid reheating them.
Thin fish fillets, such as tilapia, trout, or flounder, are more delicate and have a higher surface area, which makes them more susceptible to drying out and overcooking. When reheated, they can become dry, tough, and rubbery, losing their tender texture and delicate flavour.
Additionally, thin fillets can be challenging to handle during the reheating process. They can easily break apart or fall through the grates of a grill or the holes of a skillet. This can lead to a messy and frustrating experience, especially if you're trying to reheat multiple fillets at once.
If you do attempt to reheat thin fillets, they will require constant attention and careful monitoring to prevent overcooking. This can be time-consuming and may not yield satisfactory results. It is also important to note that reheating fish in a microwave is generally not recommended due to the high heat, which can further contribute to drying out thin fillets.
Instead of reheating thin fillets, it is often better to enjoy them fresh and use alternative methods to preserve any leftovers. Storing cooked thin fillets in an airtight container in the refrigerator can keep them fresh for up to 3 to 4 days. If you need to keep them longer, freezing is an option, but it may further affect their texture and flavour.
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Shallow frying
To shallow fry, start by preheating your pan. Coat the pan with about 1/4 inch of oil and heat it up for several minutes—you want the oil to reach a temperature of about 350°F. While the pan is heating up, you can let your fish thaw on the counter. If your fish is breaded, check for any soggy spots with moisture and soak these up to avoid oil pops.
Once the pan is hot, gently place the fish in the oil. Be very careful when handling hot oil. Use a pair of tongs to carefully lower the fish into the pan. Shallow fry the fish for 1-2 minutes on each side, depending on its thickness. Flip the fish over twice for even cooking.
When the fish is golden on both sides, remove it from the pan and place it on a paper towel to absorb any excess oil. You can also wrap the fish in a kitchen towel to help get rid of any extra grease.
While shallow frying is a great option for reheating fried fish, it's important to note that it may not be the best choice for those sensitive to strong smells. The frying process can create a strong fishy aroma, so make sure your kitchen is well-ventilated.
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Add moisture
Fish is a delicate meat, so it's important to be gentle when reheating it. To retain moisture, cover the fish with foil, adding a bit of liquid such as water, sauce, broth, or wine to the bottom of the dish. You can also brush the fish with oil, butter, or lemon juice to add flavour and moisture.
If you're using a microwave, place the fish in a dish with a little water at the bottom and cover it with a paper towel to prevent the fish from drying out. You can also add a pat of butter on top for extra moisture and flavour. Reheat on low power in short intervals to avoid overcooking.
For breaded fish, lightly oil the dish but do not cover it, as the breading will turn soggy. Reheat slowly over low heat to retain moisture and tenderness.
If you're reheating a whole fish with skin, keep the skin on as it will help retain moisture. Wrapping the fish in foil will also help to retain moisture, but be aware that this may affect the crispiness of breaded fish.
Thicker cuts of fish, such as swordfish, tuna steaks, and salmon, tend to retain moisture better during reheating than thinner fish like tilapia, trout, or flounder, which can dry out quickly.
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Frequently asked questions
The best way to reheat fish depends on how it was cooked. Breaded and fried fish can be reheated in a toaster oven. Sautéed, grilled, and baked fish can be steamed on the stovetop. Fish stews and sautéed fish can be reheated on the stovetop using the same method in which they were first cooked. Fish and chips are best reheated in the oven, air fryer, or frying pan.
To reheat fish on a pan, use a low-medium flame.
Depending on the thickness of the fish, shallow fry it for 1-2 minutes on each side.
Coat the pan with oil and heat it up for several minutes. Wrap up the fish with a kitchen towel to absorb any excess oil.










































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