Where to Store Raw Fish in Your Refrigerator So It Stays Safe

Store raw fish on the bottom shelf in the coldest part of your refrigerator

Raw fish belongs on the lowest shelf of your refrigerator, in the back corner where the temperature stays coldest — usually between 32°F and 38°F. The bottom shelf is the right place because any drips from the fish will fall onto the shelf itself rather than onto other foods below it. The back of the shelf is colder than the front because cold air sinks and circulates from the back wall outward.

Fish is highly perishable because its flesh contains enzymes and bacteria that break down protein quickly, especially at warmer temperatures. Storing it in the coldest zone slows this process significantly. Most raw fish will keep for one to two days this way, though fatty fish like salmon and mackerel last slightly longer than lean white fish like cod or flounder.

Key Takeaways

• Raw fish must go on the bottom shelf of your refrigerator to prevent drips from contaminating other foods.
• Store fish in the back corner where your refrigerator is coldest, ideally between 32°F and 38°F.
• Keep fish in an airtight container or wrapped tightly in plastic wrap to prevent odor transfer and slow bacterial growth.
• Raw fish lasts one to two days in the refrigerator; if you cannot use it within that window, freeze it instead.
• Never store raw fish above ready-to-eat foods like vegetables, deli meat, or leftovers.

Use an airtight container or tight plastic wrap

Fish must be sealed to prevent two problems: drips leaking onto other foods, and the smell spreading throughout your refrigerator. The best option is a shallow airtight container with a tight-fitting lid — the kind designed for food storage. If you do not have one, wrap the fish tightly in plastic wrap, then place it on a plate or shallow dish to catch any liquid that seeps through.

Wrapping also slows the rate at which bacteria multiply on the surface of the fish. Bacteria need moisture and oxygen to grow; a sealed container reduces oxygen exposure. This is why unwrapped fish in an open dish will spoil faster than the same fish wrapped and sealed.

Keep fish away from ready-to-eat foods

Never store raw fish above vegetables, deli meat, cheese, leftovers, or anything else you will eat without cooking. Raw fish can harbor Listeria, Salmonella, and other pathogens that cause foodborne illness. If fish drips onto a food you plan to eat raw, that food becomes unsafe.

The bottom shelf placement solves this problem if you follow it strictly. Anything above the fish — middle and top shelves — is protected from drips. If your refrigerator has a dedicated drawer for fish or meat, use it only if it is below all other foods and has a door that closes completely.

Check the smell and appearance before cooking

Even when stored correctly, fish can spoil before the two-day mark. Before you cook it, look for signs of spoilage: the flesh should be firm and spring back when you press it gently, not mushy or soft. The color should be bright and clear, not dull or gray. The smell should be mild and oceanic, not sour, ammonia-like, or strongly fishy.

If the fish smells strongly fishy or ammonia-like, it has begun to break down and should not be cooked. A mild fish smell is normal, but a pungent one means bacteria have multiplied enough to produce odor compounds. When in doubt, throw it out — the cost of the fish is far less than the cost of treating foodborne illness.

Freeze fish if you cannot use it within two days

If you bought fish but will not cook it for more than two days, freeze it instead of refrigerating it. Freezing stops bacterial growth almost completely and extends the life of fish to two to three months for fatty varieties and three to four months for lean fish. Wrap it tightly in plastic wrap or freezer paper first, then place it in a freezer bag to prevent freezer burn.

Thaw frozen fish in the refrigerator overnight, not on the counter. Thawing on the counter allows the outside to warm up while the inside is still frozen, creating a window where bacteria can multiply. Refrigerator thawing keeps the entire piece at a safe temperature throughout the process.

Organize your bottom shelf to prevent cross-contamination

If you store other raw proteins on the bottom shelf alongside fish — chicken, ground meat, or shellfish — keep them separated. Use different containers so that if one leaks, it does not contaminate the others. If space is tight, arrange them so fish is in the back corner and other proteins are in front of it, away from the coldest zone.

Label containers with the date you bought the fish. This takes five seconds and prevents you from guessing whether something is one day old or three days old. Use a permanent marker on a piece of tape, or write directly on the container if it is not one you plan to reuse.

Frequently Asked Questions

Can I store raw fish in the door of my refrigerator?

No. The door is the warmest part of your refrigerator because it is exposed to room temperature every time it opens. Fish stored there will spoil much faster than fish on the bottom shelf. Keep the door for condiments and shelf-stable items only.

How long does raw fish last if I keep it on ice?

Raw fish on ice in a sealed container can last three to four days if the ice is replenished daily and the container drains properly. However, this method works better for short-term storage — a few hours to one day — than for overnight storage. For overnight storage, the refrigerator is more reliable because the temperature stays constant.

What if my refrigerator does not get cold enough?

If your refrigerator is warmer than 40°F, fish will spoil faster. Check the temperature with a refrigerator thermometer (they cost a few dollars). If it is too warm, adjust the dial or thermostat to a colder setting. If it still will not cool down, the appliance may need repair, and you should freeze fish instead of refrigerating it.

Can I store cooked fish on the same shelf as raw fish?

Yes, as long as they are in separate sealed containers. Cooked fish cannot be contaminated by raw fish because the cooking process killed the pathogens. However, keeping them separate makes it easier to track which is which and prevents accidental mixing.

Does vacuum-sealed fish last longer in the refrigerator?

Yes, slightly. Vacuum sealing removes oxygen, which slows bacterial growth. Vacuum-sealed raw fish may last two to three days instead of one to two days. However, it still must be stored on the bottom shelf in the coldest part of your refrigerator.