How Long Raw Shrimp Stays Fresh in Your Refrigerator

Raw shrimp lasts one to two days in the refrigerator

Raw shrimp spoils quickly because it is a delicate protein with a high moisture content and minimal natural defenses against bacterial growth. The moment shrimp is caught or thawed, bacteria begin multiplying. In a refrigerator set to 40°F (4°C) or below, raw shrimp will stay safe to cook for one to two days—and that clock starts the day you bring it home or thaw it, not the day it was packaged.

The exact timeline depends on how fresh the shrimp was when you bought it. Shrimp sold at the counter is usually fresher than frozen shrimp you thaw at home, so counter shrimp may last closer to two days, while thawed frozen shrimp is safer to use within one day. If you are not certain when it was thawed or how long it has been sitting, cook it the same day you buy it or thaw it.

Temperature matters more than anything else. A refrigerator that drifts above 40°F cuts this window in half. If your fridge does not have a built-in thermometer, place an inexpensive refrigerator thermometer on a shelf and check it weekly—many home refrigerators run warmer than their dial suggests.

Key Takeaways

• Raw shrimp keeps for one to two days in a refrigerator set to 40°F or below, starting from the day you buy or thaw it.
• Shrimp bought fresh from the counter lasts slightly longer than thawed frozen shrimp, but both should be cooked within two days.
• A refrigerator running warmer than 40°F cuts the safe storage time in half, so check your fridge temperature with a thermometer.
• Freezing raw shrimp extends its life to three to four months, making it the best option if you cannot cook it within two days.
• Signs of spoilage include a sour smell, slimy texture, or gray discoloration—discard shrimp showing any of these signs.

How to store raw shrimp so it lasts the full two days

The coldest part of your refrigerator is usually the back of the bottom shelf, away from the door. Store shrimp there in its original packaging if the package is sealed, or transfer it to an airtight container if it came loose or in a paper-wrapped tray. Shrimp releases liquid as it thaws and sits, so if you are storing it in a container, place a paper towel underneath to absorb moisture—this keeps the shrimp from sitting in liquid, which speeds spoilage.

Do not store shrimp in the door or on an upper shelf. The door is the warmest part of the refrigerator because it opens and closes constantly, and upper shelves are warmer than lower ones. Even a few degrees of temperature difference can cut your storage time by a day.

If you bought shrimp that is still frozen solid, leave it in the freezer until you are ready to thaw it. Do not thaw it and then refrigerate it for later—thawing starts the two-day clock immediately. Thaw shrimp in the refrigerator overnight (the safest method), under cold running water for 15 minutes, or in a bowl of ice water changed every 30 minutes. Never thaw shrimp at room temperature.

Signs that raw shrimp has spoiled

A sour or ammonia-like smell is the clearest sign that shrimp has gone bad. Fresh raw shrimp smells like the ocean—briny and clean. If it smells sharp, tangy, or chemical, discard it. Do not taste it to check.

Texture is the second indicator. Fresh raw shrimp feels firm and slightly springy. If it feels slimy, mushy, or sticky, bacteria have broken down the muscle fibers and the shrimp is no longer safe to eat. A slimy coating often appears before the smell becomes obvious, so handle the shrimp and feel it before you cook.

Color changes are less reliable than smell or texture, but they can be a warning sign. Raw shrimp is translucent gray or white. If it has turned opaque white or has gray or black spots, it may be starting to spoil. Discard it if the color change is accompanied by any smell or texture change.

Freezing raw shrimp extends storage to three to four months

If you cannot cook the shrimp within two days, freeze it. Frozen raw shrimp stays safe to eat for three to four months at 0°F (-18°C) or below. Freezing does not kill bacteria, but it stops them from multiplying, so the shrimp remains safe as long as it stays frozen solid.

Freeze shrimp in its original packaging if it is airtight, or transfer it to a freezer bag or airtight container. If using a freezer bag, press out as much air as possible before sealing—air exposure causes freezer burn, which dries out the shrimp and makes it tough when cooked. Label the bag or container with the date so you know how long it has been frozen.

Thaw frozen shrimp in the refrigerator overnight, under cold running water, or in a bowl of ice water. Once thawed, cook it the same day or within one day. Do not refreeze shrimp after thawing unless you have cooked it first.

Cooked shrimp lasts longer than raw shrimp

If you have already cooked the shrimp, it will last three to four days in the refrigerator instead of one to two. Cooking kills most of the bacteria present, so the shrimp spoils more slowly. Store cooked shrimp in an airtight container on the bottom shelf of the refrigerator, the same way you would store raw shrimp.

Cooked shrimp can also be frozen for up to three months. Freeze it in an airtight container or freezer bag, and thaw it in the refrigerator before eating. Cooked shrimp does not need to be cooked again—you can eat it cold or reheat it gently in a pan or microwave.

What to do if shrimp has been left out at room temperature

Shrimp left at room temperature (68°F to 72°F, or 20°C to 22°C) enters the danger zone for bacterial growth immediately. Bacteria multiply fastest between 40°F and 140°F (4°C and 60°C). If raw shrimp has been sitting out for more than two hours, discard it. If the room was warmer than 90°F (32°C), discard it after one hour.

This applies whether the shrimp was thawed at room temperature or left on the counter after purchase. The time limit is strict because bacteria can produce toxins that survive cooking, so reheating will not make the shrimp safe.

Frequently Asked Questions

Can I cook shrimp that smells a little fishy?

A mild ocean smell is normal, but if the smell is sharp, sour, or ammonia-like, do not cook it. Cooking does not remove bacterial toxins that may have formed, so a bad smell means the shrimp is unsafe to eat no matter how you prepare it.

Does vacuum-sealed shrimp last longer in the refrigerator?

Vacuum-sealed shrimp lasts about the same time as regular packaged shrimp—one to two days—because the seal does not stop bacteria from growing once the shrimp is thawed or opened. The seal only matters if the shrimp is still frozen. Once thawed or opened, store it in an airtight container on the coldest shelf.

What if I buy frozen shrimp and it thaws in my car on the way home?

If the shrimp is still cold to the touch and has been thawed for less than two hours, it is safe to refreeze or cook immediately. If it has been thawed for more than two hours or feels warm, cook it the same day or discard it. Do not refreeze thawed shrimp unless you cook it first.

Can I store raw shrimp in ice to make it last longer?

Storing shrimp on ice in a bowl can extend its life by a few hours if the ice is changed regularly, but it is not as reliable as the refrigerator. The ice melts and the shrimp sits in cold water, which can make it waterlogged. The refrigerator is the better choice for storage longer than a few hours.