How long does fish last in the fridge?

Raw fish (salmon, tuna, white fish): 1-2 days fridge (USDA). Cooked fish: 3-4 days. Smoked fish: 5-7 days. Shellfish (raw): 1-2 days. Sushi-grade fish: 24 hours max. Frozen raw fish: 3-8 months by type. Time-based discard — fish spoils silently faster than meat.

The full answer

Fish has the shortest fridge life of any common protein — 1-2 days raw. This is dramatically less than beef (3-5 days) or pork (3-5 days). Fish flesh has weak connective tissue + high water content + neutral pH, all of which accelerate bacterial growth. Time-based discard rules are critical because fish doesn't always show obvious spoilage signs until pathogens have multiplied dangerously.

**USDA + FDA standard guidelines:**

**Raw fish (refrigerated below 40°F):**

- **Fresh whole fish (gutted):** 1-2 days - **Salmon (fillet or steak):** 1-2 days - **Tuna (steak):** 1-2 days - **White fish (cod, haddock, halibut):** 1-2 days - **Trout:** 1-2 days - **Mackerel:** 1-2 days (especially perishable) - **Sardines (fresh):** 1-2 days - **Sole, flounder:** 1-2 days - **Sea bass, snapper:** 1-2 days

**Sushi-grade raw fish (for sashimi):** - **24 hours maximum** at refrigeration temperatures - Some restaurants do 4-12 hours from purchase - Look for "previously frozen" labeling on sushi-grade

**Cooked fish:** - **Standard cooked fish:** 3-4 days refrigerated - **Fish in cooked dishes:** 3-4 days - **Casseroles + soups containing fish:** 3-4 days - **Tuna salad (mayo-based):** 3-4 days

**Smoked fish:** - **Hot-smoked salmon:** 5-7 days unopened, 3-4 days opened - **Cold-smoked salmon (lox):** 5-7 days unopened, 3-4 days opened - **Smoked trout:** 5-7 days

**Cured + preserved fish:** - **Gravlax:** 7-10 days refrigerated - **Pickled herring:** 3-4 weeks refrigerated - **Canned tuna (unopened):** 3-5 years shelf-stable; 3-4 days opened

**Frozen fish (raw):**

- **Lean white fish (cod, haddock, halibut):** 6-8 months - **Fatty fish (salmon, mackerel, tuna):** 2-3 months (oils oxidize faster) - **Trout:** 3-5 months - **Shellfish (shrimp, scallops):** 3-6 months - **Whole gutted fish:** 6-12 months - **Smoked fish (frozen):** 2 months

**Why fish lasts shorter than meat:**

1. **Higher water content:** fish flesh is 70-80% water vs. beef 60-70% 2. **Weak connective tissue:** bacteria penetrate easily 3. **Neutral pH (6.5-7):** more bacteria-friendly than acidic beef (pH 5.5) 4. **Fish-specific bacteria:** Pseudomonas, Photobacterium grow at fridge temps 5. **Enzymatic breakdown:** fish enzymes continue post-death 6. **Fat oxidation:** unsaturated fish oils degrade fast 7. **Bacterial load from cold ocean:** different microbes than land animals

**The smell test (especially important for fish):**

**Fresh fish should smell:** - **Like the ocean** (clean, mild brine) - **NOT fishy** (strong odor = breakdown) - **NOT sour** or off

**Discard if:** - Strong "fishy" or ammonia smell - Sliminess on surface - Cloudy eyes (whole fish) - Gray or yellow flesh discoloration - Soft, mushy texture - Brown or beige spots - Sticky surface beyond normal moisture

**Visual indicators (fresh fish):**

- **Eyes (whole fish):** clear + slightly bulging - **Gills:** bright red or pink - **Flesh:** firm + glossy - **No clear "fluid"** or excessive moisture pooling

**Visual indicators (spoiled fish):**

- **Eyes:** cloudy, sunken, dull - **Gills:** brown or gray - **Flesh:** soft + dull - **Pooling cloudy liquid** in packaging - **Bones separating** from flesh easily - **Brown or beige discoloration**

**Spoilage timeline:**

- **Day 0:** fresh, ocean-smelling - **Day 1:** still fresh, slight aging signs - **Day 2:** at threshold; should be cooked - **Day 3+:** discard regardless of appearance

**Fish-specific bacteria + risks:**

- **Salmonella:** common contamination from poor handling - **Listeria monocytogenes:** can grow at 40°F (refrigerator temp) - **Clostridium botulinum:** in raw fish + smoked vacuum-sealed products - **Histamine-producing bacteria:** scombrotoxin from spoiled mackerel/tuna/skipjack - **Scombrotoxin:** histamine poisoning from improperly stored tuna/mackerel - **Anisakis worms:** parasites in some raw fish; freezing kills (FDA freezing standard: 7 days at -4°F)

**Sushi + raw fish safety:**

For raw consumption (sashimi, sushi, ceviche, carpaccio): - **Buy sushi-grade fish** (previously frozen to FDA spec) - **Consume within 24 hours** of opening - **Keep refrigerated** until ready to serve - **Don't leave at room temp** >2 hours

The FDA-required parasite-killing freeze: - **-4°F (-20°C) for 7 days**, OR - **-31°F (-35°C) for 15 hours**

Salmon, tuna, mackerel, and other fish used raw must have undergone this freeze (or be from a supplier certified by buyer). Most "sashimi-grade" or "sushi-grade" labels indicate compliance.

**Storage best practices:**

**Raw fish:**

1. **Coldest part of fridge** (below 40°F, ideally 32-35°F) 2. **On a plate with ice** (some grocers recommend keeping fish on ice in fridge) 3. **Original packaging** until ready to cook 4. **Lowest shelf** (prevent drip) 5. **Don't open packaging repeatedly** 6. **Use within 1-2 days** of purchase

**Repackaging fish:**

If repackaging: - **Vacuum-seal:** extends to 7-10 days refrigerated - **Use parchment paper** OR plastic wrap + plate - **Ice packs in cooler** for transport home

**Cooked fish:**

1. **Cool quickly:** within 2 hours 2. **Shallow containers** for fast cooling 3. **Airtight** after cooling 4. **Use within 3-4 days** 5. **Reheat to 145°F** internal (or 165°F for safety)

**Smoked fish:**

1. **Original packaging** preferred (often vacuum-sealed) 2. **Sealed tightly** after opening 3. **Use within 5-7 days** of opening 4. **Watch for slime + ammonia smell**

**Defrosting frozen fish:**

- **Refrigerator thaw:** 24 hrs per 5 lb of fish (safest, slow) - **Cold-water thaw:** 30 min per pound (in sealed bag) - **NEVER counter thaw** (fish enters bacterial zone fast) - **Microwave thaw:** acceptable but cook immediately after

**Refreezing thawed fish:**

USDA: safe to refreeze fish thawed in refrigerator (quality degrades). Not safe if thawed at room temperature or in microwave.

**Vacuum-sealed fish:**

- **Pre-vacuum-sealed fresh:** 7-10 days refrigerated - **Vacuum-sealed smoked:** 2-3 weeks unopened, 3-4 days opened - **Vacuum-sealed frozen:** maintains quality 12+ months - **Sous vide cooked + sealed:** 5-7 days refrigerated

**Shellfish-specific:**

**Live shellfish (oysters, mussels, clams):** - **2-4 days refrigerated** in original packaging - **Tightly closed** indicates alive; discard any open ones - **Never freeze live shellfish** - **Cook the same day or next day** for best quality

**Cooked shellfish:** - **Cooked shrimp, lobster, crab:** 3-4 days refrigerated - **Cooked scallops:** 3-4 days refrigerated - **Frozen cooked shellfish:** 3-6 months

**Shrimp (raw):** - **Fresh raw shrimp:** 1-2 days fridge - **Frozen raw shrimp:** 6 months - **Pre-cooked frozen shrimp:** 3-6 months

**Scallops:** - **Fresh raw scallops:** 1-2 days fridge - **Frozen raw scallops:** 6 months

**Lobster:** - **Live lobster:** 1-2 days fridge in original packaging - **Cooked lobster:** 3-4 days fridge - **Frozen lobster tails:** 6-9 months

**Crab:** - **Live crab:** 1-2 days fridge - **Cooked crab meat (pasteurized):** 3-5 days fridge - **Frozen crab:** 3-6 months

**Octopus + squid:** - **Fresh raw:** 1-2 days - **Frozen:** 2-3 months - **Cooked:** 3-4 days fridge

**Cocktail/grocery store seafood:** - **Frozen cooked shrimp from bag:** 3-4 days fridge once thawed - **Smoked salmon retail (unopened):** check date - **Imitation crab (surimi):** 7-10 days fridge unopened, 3 days opened

**The 2-hour rule (extra critical for fish):**

Fish at room temperature for more than 2 hours should be discarded. In hot weather (>90°F), reduce to 1 hour. Fish supports bacterial growth even faster than poultry above 40°F.

**Don't:** - Eat raw fish past 24-48 hours regardless of smell - Trust your nose alone — fish bacteria can be invisible - Refreeze fish thawed at room temperature - Eat smoked fish with off-smell (botulism risk in vacuum-sealed) - Leave fish at room temperature >2 hours - Mix raw fish with cooked foods (cross-contamination) - Use unstable refrigeration for raw fish

**Common mistakes:**

- **Counter-defrosting:** rapid bacterial growth + texture damage - **Storing in fridge door:** temperature variation reduces life - **Trusting "freshness" by appearance only:** fish bacteria can be invisible - **Stretching the 2-day rule:** fish at day 3 raw is risky - **Not cooking thoroughly:** smoked fish requires 165°F if heating

**Cross-reference:** see /pages/how-long-does/chicken-fridge for poultry comparison + /pages/how-long-does/beef-fridge for red meat + /pages/what-temperature-for/cooking-salmon for cooking temperatures.

Most published references (USDA FoodKeeper App, FDA Refrigerator + Freezer Storage Chart, USDA Food Safety + Inspection Service, NOAA Fisheries, StillTasty) converge on 1-2 days raw fish / 24 hours raw sushi-grade / 3-4 days cooked / 3-8 months frozen, with time-based discard rules essential due to silent bacterial growth.

Time ranges by condition

What changes the time

• Fish type. Fatty fish (salmon, mackerel) oxidize faster than lean fish (cod, halibut)
• Form (raw vs cooked). Raw 1-2 days; cooked 3-4 days; cooking pasteurizes + extends life
• Packaging method. Vacuum-sealed extends to 7-10 days raw; original wrap 1-2 days
• Use case (cooking vs raw). Sushi-grade for raw must be FDA-frozen first; 24 hrs max raw
• Storage location. Coldest fridge spot (32-35°F) extends life; door storage shortens

Common questions

Sources

We cite primary research, expert practice, and authoritative reference. Higher-tier sources weighted heavier. See methodology.

1. T1USDA FoodKeeper App — Official US storage time database with seafood section
2. T1FDA Refrigerator + Freezer Storage Chart — Federal seafood refrigeration timelines + sushi-grade freezing standards
3. T1USDA Food Safety + Inspection Service — Official seafood storage + safety guidelines
4. T2NOAA Fisheries — Federal seafood quality + handling standards

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