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What temperature for sous vide fish?

By Paulo de VriesLast verified 4 sources~3 min readhigh consensus
What we know

Salmon: 122°F (50°C) for 30-40 min = silky raw-ish. 130°F (54°C) for traditional medium. Cod/halibut: 132°F (56°C) for 30-45 min. Tuna: 110°F (43°C) for sashimi-style. Most popular: salmon 125°F (52°C) for 35 min = silky-tender + pasteurized.

4 variables shift this number4 cited sources3 common mistakes addressed~3 min read read below
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The full answer

Why sous vide fish is shorter cooking

Fish proteins are more delicate than meat. They denature at much lower temperatures (~120°F) and become unpleasantly firm + dry above 140°F. Sous vide preserves their delicate texture while still ensuring even cooking + safety.

Temperature ranges by fish type

FishTemperatureTimeTexture
Salmon122°F (50°C)30-40 minSilky raw-ish, restaurant-style
Salmon125°F (52°C)35-45 minSlightly firmer, traditional medium-rare
Salmon130°F (54°C)30-40 minMedium, traditional
Salmon140°F (60°C)30-40 minFirm, well-done
Cod/halibut130°F (54°C)30-45 minFlaky + just-set
Cod/halibut132°F (56°C)30-45 minFirmer flake; traditional
Tuna110°F (43°C)30 minSashimi-style; warm raw center
Tuna120°F (49°C)30-40 minRare; pinkish center
Sea bass122°F (50°C)30 minSilky
Trout125°F (52°C)35 minTraditional medium
Swordfish130°F (54°C)30 minMedium

Pasteurization for fish (FDA guidance)

For raw-fish-grade safety, FDA recommends: - Wild-caught freshwater fish: freeze at -4°F for 7 days before raw consumption (kills parasites) - Sushi-grade salmon: sourced as "previously frozen for raw consumption" or treated similarly - Sous vide pasteurizes via time × temp: at 122°F, 1 hour = pasteurized for most fish; at 130°F, 15-20 min

For most home cooking, 30-45 min at 122-130°F = both delicious + safe.

Common pitfalls

  • Overcooking — fish cooks fast. 60+ min at 122°F = mushy. Set timer and stop.
  • Bag bursts — fish skin releases small bubbles during cook; use double-bag or check seal periodically
  • Skin texture — sous vide softens skin. For crispy skin: sear in screaming-hot pan post-cook (30-60 sec skin-side down)
  • Wet fish — pat dry thoroughly before sear; otherwise no browning
  • Wrong fish type — meaty fish (halibut, swordfish) sous vide differently than oily fish (salmon). Match temperature to fish type.

Best practice

  1. Pat fish dry. Season: salt, pepper, herbs, sometimes butter or oil
  2. Bag with optional flavor enhancements (citrus zest, fennel, dill, white wine — never raw garlic for >4 hour cooks)
  3. Submerge in pre-heated bath
  4. Cook for 30-45 min (most fish/cuts)
  5. Remove + pat dry completely
  6. Optional skin-side sear in screaming-hot pan (30-60 sec)
  7. Plate immediately

Cross-reference: see /pages/how-long-does/gravlax-cure for adjacent salmon-cure + /pages/what-temperature-for/cooking-salmon for traditional cooking + /pages/how-long-does/sous-vide-egg for sous vide eggs.

Time ranges by condition

ConditionDurationNote
Salmon, 122°F / 50°C30-40 minSilky raw-ish, restaurant-style
Salmon, 130°F / 54°C30-40 minTraditional medium
Cod/halibut, 132°F / 56°C30-45 minFlaky just-set
Tuna, 110°F / 43°C30 minSashimi-style warm raw center
Trout/sea bass, 125°F / 52°C35 minSilky, traditional

What changes the time

  • Fish thickness. 0.75-1.25" most common. Thinner: reduce by 5-10 min. Thicker (1.5"+): add 5-10 min.
  • Fish freshness. Day 0-1 from catch = best. Day 2-3 = OK. Day 5+ = sulfur risk in vacuum bag — cook quickly.
  • Sushi-grade requirement. For lower temps (under 125°F), use sushi-grade or previously-frozen fish for parasite safety
  • Skin-on vs skinless. Skin-on = sears crispier post-cook. Skinless = easier eating but no crispy crust.

Common questions

My salmon turned out chalky white — what went wrong?

Overcooked. Above ~135°F, salmon's albumin protein coagulates + appears as the white "stuff" on top. For silky salmon: stick to 122-125°F for 30-40 min. If you overcooked: serve it sliced over salad (texture is still acceptable just-cooked) but next time pull temp down. The chalky white texture means proteins fully denatured + lost moisture.

Can I sous vide frozen fish without thawing?

Yes — add 5-10 extra minutes to the cook time + ensure thorough thawing during cook. Most sous vide circulators are powerful enough to thaw + cook in one go. Use bag-water-displacement method (not vacuum) to ensure ice doesn't puncture the bag. Frozen-cooked salmon is fine; for sushi-grade outcomes, thaw first to inspect quality before bagging.

Why does sous vide salmon taste different from pan-seared?

No Maillard reaction from the sous vide itself = no roasted/crusty flavor compounds. The fish texture stays much more delicate + silky, more like raw or just-poached. The flavor is purer + closer to the fish's natural taste. For more "cooked" flavor: sear sous vide fish in hot pan 30-60 sec per side after cooking — this adds Maillard browning + restores some traditional cooked-fish flavor.

Sources

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

Tier 1 · peer-reviewed / governmentalTier 2 · editorial referenceTier 3 · named practitioner
  1. T1Modernist Cuisine — Sous Vide Fish — Lab-tested temperature/time matrices by fish species
  2. T1FDA — Fish + Fishery Products Hazards + Controls Guidance — Government safety standards for raw-fish preparation
  3. T2Chef Steps — Sous Vide Fish — Authoritative published sous vide reference
  4. T2Serious Eats — Sous Vide Salmon — López-Alt tested home recipe with temperature explanation

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de Vries, P. (2026). What temperature for sous vide fish?. AskedWell. Retrieved 2026-08-29, from https://askedwell.com/pages/what-temperature-for/sous-vide-fish

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