How to Get the Right Fish Internal Temperature

A man slicing fish meat using the Dalstrong Shogun Series ELITE Boning Knife 6"

Shogun Series ELITE Boning Knife 6"

A cooked temp of 145°F ensures that your fish is neither undercooked nor overcooked. But how do you get there?

1. Why You Need To Check The Internal Temperature Of Fish

A man deboning a fish using the Dalstrong Dalstrong © Professional Fish Tweezers

Dalstrong Professional Fish Tweezers

You might think that cooking fish is a simple "eyeball it and hope for the best" situation. But trust me, it’s not. Fish cooked to the ideal temperature is not just about taste and texture -- it's about food safety too. Nobody wants to deal with foodborne illnesses after enjoying a delicious fish dish. Ensuring that your fish reaches the right temperature is the key to avoiding harmful bacteria and ensuring you get a perfectly cooked piece of fish every time.

But why exactly is the right fish temperature such a big deal? Let's dive into the nitty-gritty.

Avoiding the "Oh No" Moment

You’ve invited friends over for dinner, planning to impress them with your culinary skills. You serve up a beautiful piece of seared salmon, only to watch in horror as your guests take a bite and hesitate. Uh-oh. The inside is still translucent. This is precisely the "oh no" moment we want to avoid.

When you cook fish, you need to ensure it's reached a safe temperature to kill off any harmful bacteria or parasites that might be lurking. Foodborne illnesses from undercooked fish are no joke -- they can cause some serious discomfort, and let’s face it, nobody wants to be that cook who sent their friends home with a bellyache.

The Science Behind It

Fish are, by nature, more sensitive to heat than other types of meat. This sensitivity is due to their muscle structure and the presence of different proteins compared to, say, beef or chicken. Fish recipes often stress precise cooking because going even a few degrees too high or too low can change the texture from flaky and moist to dry and rubbery.

Temperature charts are a lifesaver here. They give you a clear guideline for the ideal fish temp for different types of seafood. For example, salmon and red snapper are best cooked to an internal temperature of 145°F. Clams, mussels, and oysters also need to hit that mark to ensure they’re safe to eat.

A Matter of Taste and Texture

Getting the fish temperature right isn’t just about avoiding a trip to the ER; it’s also about making your taste buds dance. Perfectly cooked fish should be flaky, moist, and full of flavor. Undercooked fish can be mushy and unappetizing, while overcooked fish turns dry and loses its natural flavors.

For instance, take a delicate lobster tail. Cook it just right, and it's a luxurious treat. Overdo it, and you’ve got yourself a pricey rubber band. The same goes for a piece of salmon or a batch of crab cakes. Knowing the cooking time and method appropriate for your type of fish is crucial.

Tips and Tricks from the Pros

Professional chefs have mastered the art of cooking meat and seafood to perfection. One cooking tip they often share is to use a reliable meat thermometer. It takes the guesswork out of the equation, ensuring that your fish cooked to perfection every time. This is especially important for seafood like clams, mussels, and oysters, where eyeballing simply won’t cut it.

Another frequently asked question in cooking fish is about the best cooking methods. Whether you’re pan searing, baking, grilling, or poaching, each method affects the fish temperature differently. A pan-seared sea bass might need a quick, high-heat approach, while a baked red snapper requires a slower, gentler heat to cook evenly.

So, why do you need to check the internal temperature of fish? It's simple: to cook fish safely, to perfection, and to enjoy it without any worries. Armed with a meat thermometer and some knowledge about safe temperatures, you're on your way to mastering the art of cooking fish. The next time you’re in the kitchen, remember these tips, and you’ll be serving up delicious, perfectly cooked fish every time. And hey, you might even avoid a few “oh no” moments along the way.

2. How To Check Internal Temperature Of Fish

A man's hand with gloves slicing salmon meat using the Dalstrong Valhalla Series Fillet Knife 6.5"

Valhalla Series Fillet Knife 6.5"

So, you’ve got your favorite fish ready to cook, but how do you know it’s cooked just right? The answer is simple: a food thermometer. Yes, that handy little gadget can make a world of difference. But let's break it down so you can feel like a pro in your own kitchen.

Insert the Thermometer Properly

First things first, let’s talk about where to stick that thermometer. Aim for the thickest part of the fish. This is crucial because the thickest part takes the longest to cook, and if it's done, the rest of the fish will be too. Inserting the thermometer properly ensures you get an accurate reading and avoids the dreaded undercooked or overcooked fish dilemma.

Whether you're cooking a pan-seared sea bass or baking an atlantic salmon, the principle remains the same. Just slide that thermometer right into the middle, and you'll be golden.

Wait for the Reading

Patience is key here. Once you’ve inserted the thermometer, give it a moment to stabilize. You’re looking for a stable reading, not one that’s bouncing around like a toddler on a sugar high. This might take a few seconds, but it’s worth the wait. You want to ensure that the temperature you see is accurate, giving you confidence that your fish is cooked to perfection.

Check the Temperature

Now comes the moment of truth. Compare your reading with the recommended internal temperature guide. For most fish, including popular types like sea bass, atlantic salmon, and crab cakes, you'll be aiming for 145°F (63°C). At this temperature, the fish is safe to eat and has that perfect balance of texture and flavor.

If you're wondering about the temperature the fish supposed to reach, this is it. A cooked temp of 145°F ensures that your fish is neither undercooked nor overcooked.

You might be asking, "Why go through all this trouble for a piece of fish?" Well, as we noted above, the benefits are twofold. First, it’s about food safety. Hitting the right temperature ensures that harmful bacteria and parasites are eliminated. Second, it's about achieving the perfect fish dish. A fish cooked to the ideal temperature will be moist, flaky, and delicious -- not dry and tasteless.

Different Methods, Same Goal

Whether you’re pan-searing, grilling, baking, or poaching, using a food thermometer takes the guesswork out of cooking. For a pan-seared fish like sea bass, you might want to start with high heat to get that beautiful crust, then reduce the heat to cook it through without drying it out. For baking an atlantic salmon, a slow and steady approach ensures even cooking throughout.

Knowing how to check the internal temperature opens up a world of dinner ideas. From a simple pan-seared sea bass to a more elaborate crab cakes dinner, the possibilities are endless. You can confidently explore different fish recipes and cooking methods, knowing that you have the skills to cook meat safely and deliciously.

3. What Is The Perfect Internal Temperature Of Fish

A man's hand with gloves slicing salmon meat using the Dalstrong Valhalla Series Fillet Knife 7"

Valhalla Series Fillet Knife 7"

The perfect internal temperature of fish varies slightly depending on the type, but generally speaking, here’s what you should aim for:

The Golden Rule: 145°F (63°C)

This is the FDA-recommended safe minimum internal temperature for fish. At this temperature, your fish should be opaque and flakes easily with a fork. It’s the sweet spot where your fish is safely cooked, ensuring you avoid any unpleasant foodborne illnesses while achieving that ideal internal texture and flavor. Think of it as your golden rule for most types of fish and seafood.

Why is 145°F (63°C) the magic number? It’s all about the proteins. At this temperature, the proteins in the fish coagulate just enough to be safely cooked without turning rubbery. Fish are sensitive to heat, and even a few degrees can make a big difference in texture and taste. Cooking at the recommended temperatures ensures your fish reaches the perfect balance of flakiness and juiciness.

Overcooking fish can be as disastrous as undercooking it. When fish internal temps go beyond the ideal, it loses moisture and becomes dry and tough. This is why using a meat thermometer is key to perfecting cook times and temperatures. By sticking to the recommended internal temperature for cooked fish, you ensure that every bite is as delicious as the first.

Seared Rare: Sushi-Grade Delight

For sushi-grade fish like ahi tuna, you can safely enjoy it at a lower temperature if it’s been flash frozen to kill parasites. Aiming for around 125°F (52°C) gives you that perfect seared rare finish. It’s an ideal internal temperature for those who love their tuna with a bit of a raw center, which keeps its natural flavors intact while ensuring it's safe food to eat.

Shellfish: Lobster, Crab Cakes, and More

When it comes to shellfish like lobster tail, crab cakes, and clams, mussels, and oysters, they should also reach 145°F (63°C) to be safe to eat. These types of seafood need to hit that temperature to ensure any harmful bacteria are eliminated. A well-cooked lobster tail or crab cake at this temperature will be tender, juicy, and bursting with flavor.

Nuances of Different Fish Types

Different types of fish have slight variations in their ideal internal temperatures, but the 145°F (63°C) rule is a great starting point. For instance, a delicate sea bass might lose its moisture if overcooked, so keeping a close eye on the thermometer is crucial. On the other hand, a hearty piece of Atlantic salmon can handle a bit more cooking time without drying out, but the target temperature remains the same.

Practical Tips

Trust the Thermometer

Always use a reliable food thermometer to check your fish cooking temperature. It’s the most accurate way to ensure your fish and seafood are cooked safely.

Know Your Fish

Different types of fish might have slightly different needs. For instance, thicker fillets like salmon or swordfish can take a bit more time, while thinner fillets like sole or flounder cook quickly.

Read about the Salmon Nutrition and Health Benefits, here.

Rest Your Fish:

Just like with meat, letting your fish rest for a few minutes after cooking can help the juices redistribute, leading to a more flavorful and moist final product.

4. Dalstrong Tools You Must Have

1. Dalstrong Professional Slotted Fish Spatula 7.5"

Dalstrong © Professional Slotted Fish Spatula 7.5"

This awesome fish spatula is made from a single piece of premium, anti-corrosion stainless steel, so you know it's built to last. The is super sturdy military-grade G-10 fiberglass resin, which sounds intense, but it just means it’s really comfortable and gives you great control. The front edge is angled just right, and the thin lip makes it super easy to slide under delicate foods without messing them up. Plus, it has these five wide slots that let the oil drain off quickly, which is great for keeping things a bit healthier. 

PROS:

  • Made from a single piece of high-quality stainless steel, so it’s tough and durable.
  • The military-grade handle gives you a solid grip and is almost indestructible when it comes to heat, cold, and moisture.
  • Perfectly angled edge and thin lip make it easy to handle delicate foods like fish without breaking them.
  • Super versatile -- you can use it for all sorts of cooking tasks, from fish fillets to burgers to cookies.

CONS:

  • The thin lip means you need to be a bit careful to avoid any accidental scratches or nicks.
  • The handle, while really durable, might feel a bit too firm if you’re used to something softer.

2. Valhalla Series | Fillet Knife 6.5"

Valhalla Series Fillet Knife 6.5"

This thing s like something out of a Viking legend, seriously. This knife is perfect for anything fish-related, whether you’re descaling, deboning, filleting, skinning, trimming, or even butterflying. The blade is made from high-carbon steel and is hand-sharpened to a razor-sharp 8-12 degrees. 

PROS:

  • The high-carbon steel blade is incredibly sharp and perfect for precise cuts, especially when working with fish.
  • The handle is made from unique resin and stabilized wood, making it both beautiful and durable.
  • The knife includes a stylish leather sheath, keeping it protected and adding a touch of Viking flair.
  • It’s designed for versatility and ease of use, making it great for all sorts of kitchen tasks beyond just fish.

CONS:

  • The thin, sharp blade means you need to handle it carefully to avoid accidental cuts.
  • The unique resin handle might vary in color, so every handle may look a bit different.

3. Oberon Series | 12" Frying Pan & Skillet

Oberon Series 12" Frying Pan & Skillet

This 12" frying pan is made with this incredible 3-ply aluminum core cladded in stainless steel, which means it heats up super fast and cooks everything evenly. Whether you’re searing a thick steak or making a delicate omelette, this pan handles it all with ease.

PROS:

  • The 3-ply aluminum core heats up quickly and evenly, making it perfect for a wide range of dishes, including delicate fish fillets.
  • The thick gauge stainless steel cladding is nonreactive and excels at browning and braising, ensuring your food tastes great and the pan lasts a lifetime.
  • It’s medium-weight, providing a perfect balance of durability and ease of use, so you won’t feel like you’re lifting weights every time you cook.
  • The sleek, professional design makes it look as good as it performs, adding a touch of elegance to your kitchen.

CONS:

  • The pan’s size might be a bit large for those with limited storage space.
  • It’s not non-stick, so you’ll need to use a bit more oil or butter when cooking certain dishes.

4. Dalstrong Professional Fish Tweezers

Dalstrong © Professional Fish Tweezers

These tweezers are perfect for anyone who loves cooking fish or just wants to up their seafood game. Made from super durable 304 stainless steel and coated in black titanium, they’re built to last and look pretty slick, too.

PROS:

  • Made from corrosion-resistant 304 stainless steel with a sleek black titanium coating, so they’re durable and stylish.
  • The angled, beveled tip allows for precise work, making it easy to remove bones from fish without damaging the meat.
  • Textured handle ensures a slip-proof grip, perfect for those slippery moments in the kitchen.
  • Ambidextrous design means they’re comfortable for everyone to use, whether you’re a lefty or righty.

CONS:

  • At 6 inches long, they might feel a bit small if you’re used to larger kitchen tools.
  • They’re so handy you might find yourself wanting a second pair for your tackle box or other non-kitchen uses.

5. Frequently Asked Questions

What temp should fish be at in Celsius?

Fish should be cooked to an internal temperature of 63°C. This ensures it’s safe to eat and perfectly cooked.

Is fish done at 135 degrees?

Technically, yes -- fish can be considered done at 135°F (57°C) if you prefer it on the slightly rare side. However, the FDA recommends 145°F (63°C) for safety.

Can you eat fish at 140 degrees?

Eating fish at 140°F (60°C) is generally safe, and it’s a good middle ground if you’re aiming for a balance between moistness and safety.

Does fish have to be cooked to 165?

No, fish does not need to be cooked to 165°F. That temperature is more suitable for poultry like cooked chicken. For fish, 145°F (63°C) is the safe minimum internal temperature chart recommendation.

SHOP DALSTRONG TODAY!

Witten by Jorge Farah
Born on the coast of Colombia and based in Buenos Aires, Jorge is a cooking enthusiast and kitchenware obsessive with a tremendous amount of opinions.

How to Get the Right Fish Internal Temperature

Table of Content