How Long Does Imitation Crab Last?
Opened imitation crab lasts about 3 days in the fridge. An unopened vacuum-sealed pack keeps until its use-by date, up to about 2 months, and it freezes for up to 6 months.
Imitation Crab — opened
shelf life- Unopened: 2 months in the fridge
- Prepared: 3–4 days in the fridge
Fridge at 40°F (4°C) or below · freezer at 0°F (−18°C). Freezer times are for best quality; frozen food stays safe longer.
Imitation crab is surimi: white fish, usually Alaska pollock, that is minced, washed, blended with starch, egg white, sugar and crab flavoring, then shaped and fully cooked. Sealed packs are pasteurized, which gives them a long refrigerated life, but once opened the moist, ready-to-eat sticks are exposed to bacteria and keep only a few days.
How to store imitation crab
- After opening, move unused sticks or flakes to a zip-top bag with the air pressed out, or wrap them tightly; they dry out and turn rubbery at the edges when left in the open tray.
- Write the opening date on the bag. The printed use-by date stops applying once the vacuum seal is broken.
- Freeze unopened packs as they are, or divide an opened pack into recipe-size portions in freezer bags. Thaw overnight in the fridge and do not refreeze.
- Keep imitation crab salads and sushi bowls chilled until serving and return them to the fridge within 2 hours, as with any ready-to-eat seafood.
How to tell if imitation crab has gone bad
- A sour or distinctly fishy smell. Fresh imitation crab smells mild and slightly sweet.
- A slimy, sticky film on the surface, or sticks that have become mushy and fall apart.
- The white flesh turning gray or yellowish, or the red-orange outer color looking faded and blotchy.
- A sealed pack that is puffed up with gas or leaking should be discarded unopened.
Bacteria that cause food poisoning usually do not change the look, smell or taste of food. Go by the time limits first, and the signs above second.
Imitation Crab shelf life chart
| State | Fridge | Freezer | Pantry |
|---|---|---|---|
| Opened | 3 days | 6 months | Not safe |
| Also applies to loose imitation crab sold from the seafood counter. | |||
| Unopened | 2 months | 6 months | Not safe |
| Or the use-by date printed on the pack, whichever comes first. | |||
| Prepared | 3–4 days | Not recommended | Not safe |
| Seafood salad, crab rangoon filling and other mixed dishes, counted from when the pack was opened. | |||
Not safe = perishable: no more than 2 hours at room temperature (1 hour above 90°F / 32°C). Not recommended = possible, but quality suffers or it serves no purpose.
Frequently asked questions
How long does imitation crab last after opening?
Opened imitation crab lasts about 3 days in the fridge when tightly wrapped and kept at 40°F (4°C) or colder. If the label gives a shorter or longer period after opening, follow the label. Freeze what you cannot finish in that time.
Can you eat imitation crab past the use-by date?
It is not advisable for a refrigerated, ready-to-eat product. Imitation crab is eaten without further cooking, and bacteria such as Listeria can grow at fridge temperature without any change in smell or appearance. If the date is coming up, freeze the unopened pack before it passes.
Is imitation crab already cooked?
Yes, imitation crab is fully cooked during manufacturing and can be eaten straight from the pack, cold in salads and sushi rolls or warmed in hot dishes. It contains fish, and usually egg, wheat and sometimes real crab extract, so it is not suitable for people with those allergies.
Can you freeze imitation crab?
Yes, it can be frozen for up to 6 months. Many packs were shipped frozen once already, so the texture after a second freeze may be slightly softer and wetter. Thawed imitation crab works best in cooked dishes, dips and casseroles rather than served plain.
Related foods
| Food | Fridge | Freezer | Pantry |
|---|---|---|---|
| Crab Cooked |
3–4 days | 2–3 months | Not safe |
| Sushi Prepared, raw fish |
1 day | Not recommended | Not safe |
| Shrimp Raw |
1–2 days | 3–6 months | Not safe |
| Tuna Salad Prepared |
3–4 days | Not recommended | Not safe |
| Lobster Live |
1 day | Not recommended | Not safe |
| Frozen Fish Sticks Unopened |
1 day | 3–4 months | Not safe |
Reviewed 2026-09-20. Times follow published USDA FoodKeeper / FSIS, FDA and CDC storage guidance; where sources differ we use the shorter time. How we compile this data.