How to Identify Truly Fresh Fish: 7 Signs Every Seafood Lover Should Know
Introduction
We’ve all been there. You’re at a market, staring at a counter of fish sitting on ice. The sign above it says “FRESH.”
But what does that really mean?
“Fresh” is one of the most overused words in the food world. That fish could have been caught this morning. Or, it could have been caught five days ago and been on a long journey to get to that bed of ice.
I remember when I was first learning to cook, I bought some “fresh” fish that looked okay. But when I got it home and started to cook, the texture was soft and mushy. It was so disappointing.
Learning how to spot truly fresh fish is a superpower. It’s the key to making a delicious meal. You don’t have to be a chef to learn the signs. You just need to know what to look for.
Here are the 7 signs that every seafood lover should know.
Sign 1: Look at the Eyes (The Clearest Sign of Fresh Fish)
This is the oldest trick in the book, and it’s still the best one. You can learn almost everything you need to know from the eyes.
- What you want to see: The eyes should be clear, bright, and bulging. They should look plump and full of life, almost like the fish is still swimming. A clear, black pupil is a great sign.
- What to avoid: The first sign of an old fish is the eyes. Avoid fish with dull, cloudy, or sunken eyes. If the eyes look grey or have a milky film over them, that fish is not fresh. Walk away.
Sign 2: The Smell Test (What Should Fresh Fish Really Smell Like?)
This one is simple. Trust your nose. It knows.
A lot of people say, “fresh fish shouldn’t smell fishy.” That’s true! But what should it smell like?
- What you want to smell: A truly fresh fish should smell clean, like the ocean or a clean river. It should have a mild, slightly salty, sea-breeze smell.
- What to avoid: If you lean in and get a strong, “fishy,” or sour smell, that’s a problem. The worst-case scenario is a smell like ammonia. That’s a definite sign the fish has gone bad. Don’t ever be afraid to ask to smell the fish. If it smells bad, don’t buy it.
Sign 3: Check the Gills (A True Insider Trick)
This is what the pros do. If you’re buying a whole fish, ask the fishmonger to lift the gill cover. This is like looking under the hood of a car.
- What you want to see: The gills should be a bright, clean, cherry-red color. They should look wet and healthy.
- What to avoid: Old fish will have gills that are dull, brownish, or even grey. If the gills look slimy or muddy, that’s a major red flag that the fish is not fresh.
Sign 4: The Poke Test (Checking the Flesh for Freshness)
This is the test for texture. You can’t always do this at a counter, but if you can, it’s very revealing.
Gently press your finger into the side of the fish.
- What you want to feel: The flesh should be firm, springy, and bounce right back. When you take your finger away, the dent should disappear.
- What to avoid: If you poke the fish and your finger leaves a dent, that fish is not fresh. Soft, mushy, or sagging flesh means the fish is old and the texture is already ruined.
Sign 5: Look at the Skin and Scales (How Fresh Fish Should Shine)
A fresh fish should look like it just came out of the water.
- What you want to see: The skin should be shiny, wet, and metallic-looking. The scales should be tight against the body. You shouldn’t see scales flaking off all over the place.
- What to avoid: A fish that looks dull, dry, or has discolored patches is old. If the scales are falling off easily or the skin is slimy, that’s a bad sign.
Sign 6: Check the Belly (No Gaps or Tears)
This is a sign of how the fish was handled and how old it is.
- What you want to see: The belly area should be intact and clean.
- What to avoid: Look for any tears, breaks, or “gaping” along the belly. If the belly looks bloated or is starting to burst, it’s a sign that the insides are breaking down, and the fish is definitely not fresh.
Sign 7: How to Identify Fresh Fish Fillets
What if you’re not buying a whole fish? You can’t check the eyes or gills. Don’t worry. There are still signs to look for.
- What you want to see: A fresh fillet should look moist, firm, and almost translucent. The color should be vibrant (depending on the fish). There should be no liquid pooling in the package.
- What to avoid: Steer clear of fillets that look dry, chalky, or dull. If you see browning or drying around the edges, the fillet is old. Also, if there is a milky, white liquid on the fillet, it’s a sign that the fish is old and the flesh is breaking down.
Conclusion
It seems like a lot to remember, right? It takes practice to become a real expert.
Learning to spot these 7 signs is a great skill to have. It’s the best way to make sure you’re bringing home a delicious, healthy, and safe meal for your family.
Of course, there is an easier way.
The simplest way to know your fish is fresh is to skip the test altogether and go to a source you trust. At The Best Buys, our entire business is built on this. We are the experts for you. We do this 7-point check on every single fish that comes in. If it doesn’t pass, we don’t sell it.
Our promise is that you will never have to guess. You will always get that “just-caught” freshness, delivered right to your door.
FAQ
The two fastest ways are the smell and the eyes. Your nose will tell you immediately if something is wrong. It should smell like the clean ocean, not “fishy.” Then, look at the eyes. They should be bright, clear, and bulging, not cloudy or sunken.
A fish that is starting to go bad will have a strong, sour, “fishy” odor. A fish that has gone bad will have a very sharp, ammonia-like smell. It’s very distinct and you will know it’s wrong right away.
No. A “fishy” smell is the first sign that the fish is old and bacteria are starting to break it down. Truly fresh fish has almost no “fishy” odor at all. If it smells fishy, it’s best to avoid it.
Almost always, yes. This is one of the most reliable signs. Some fish, just by the way they are caught or stored on ice, might have slightly less-than-perfect eyes, but they should never be sunken, cloudy, or grey.
You should cook truly fresh fish as soon as possible, ideally the same day you buy it. You can store it in the coldest part of your refrigerator for one, maybe two, days at the most. Fish is very perishable, so the faster you cook it, the better it will taste.


