Salmon and shrimp both cook to the exact same safe temperature, but they don't take anywhere close to the same amount of time. If you've ever tried to time a dish with both, you already know shrimp is done and salmon is nowhere close. Here's why, and exactly how the numbers compare.
Same Target Temperature, Very Different Speed
| Salmon | Shrimp | |
|---|---|---|
| FDA safe internal temp | 145°F (63°C) | 145°F (63°C) |
| Typical thickness/size | 1 inch fillet (standard) | Large shrimp, ~½ inch at the widest point |
| Doneness cue | Opaque, flakes easily | Pink, opaque, curled into a C shape |
Both proteins share the same target — there's no temperature difference driving the gap in cook time, unlike some protein comparisons. The gap is entirely about size: a standard salmon fillet is roughly twice as thick as a large shrimp, and heat takes disproportionately longer to reach the center of a thicker piece of food.
Cook Time Comparison, Side by Side
| Method | Salmon (1-inch fillet) | Shrimp (large, 26/30 count) |
|---|---|---|
| Pan-sear/sauté | 6–8 min total | 2–3 min total |
| Oven/baked (400°F) | 12–15 min | 6–8 min |
| Grill | 7–9 min total | 4–6 min total |
Across every method, salmon takes roughly twice as long as shrimp — a direct result of that thickness difference, not anything about the fish versus shellfish itself. For exact times by exact thickness or shrimp size, see the full salmon cooking time guide and shrimp cooking time guide.
Cooking From Frozen: The Gap Widens
The speed difference between salmon and shrimp gets more lopsided if you're cooking from frozen instead of thawed. Salmon cooked straight from frozen typically needs about 50% more time than the thawed figures above — a 1-inch fillet that takes 12-15 minutes thawed can take 18-22 minutes frozen, since the fish has to thaw and cook in the same session. Shrimp is far more forgiving: because it's already so thin, cooking from frozen usually only adds a minute or two to the total time (roughly 2-3 minutes per side instead of the times above), which is why "no need to thaw" is common advice for shrimp specifically but not for salmon. If you're short on time and only one can go in frozen, shrimp is the one to skip the thaw on.
Cooking Them Together
A common mistake in shrimp-and-salmon dishes — paella, sheet-pan bakes, seafood boils — is adding both at the same time and ending up with rubbery shrimp waiting around for salmon to finish. Stagger the additions instead: start the salmon first, and add the shrimp once the salmon is roughly halfway to two-thirds done. For a sheet-pan bake at 400°F with a 1-inch salmon fillet, that means adding large shrimp around the 6-8 minute mark so both finish within a minute or two of each other.
Why the Margin for Error Is Different
Shrimp's short total cook time means there's very little room between "just done" and "overcooked" — often less than a minute, since the whole cook only takes 2-8 minutes depending on method and size. Salmon has more forgiveness, typically 2-3 minutes of margin, simply because the total cook time is longer to begin with, so a small timing error is a smaller fraction of the total. This is why shrimp benefits more from active attention — pull it the moment it turns pink and curls — while salmon gives you slightly more room to multitask.
Frequently Asked Questions
Why does shrimp cook so much faster than salmon?
Both cook to the same FDA-recommended 145°F, so temperature isn't the difference — size is. A large shrimp is only about ⅓ to ½ inch thick at its widest point, while a standard salmon fillet is a full inch. Heat needs to penetrate much less material to reach the center of a shrimp, so it cooks in minutes instead of the 10+ minutes a salmon fillet needs.
Can I cook salmon and shrimp together in the same dish?
Yes, but stagger when you add them — start the salmon first since it takes longer, and add the shrimp partway through so both finish at the same time. In a sheet-pan bake, add shrimp about 6-8 minutes after the salmon goes in, depending on shrimp size.
Do salmon and shrimp cook to the same temperature?
Yes — the FDA recommends 145°F (63°C) for both. The difference between them is entirely about how long it takes to reach that temperature, driven by size and thickness, not a different target.
Which is easier to overcook, salmon or shrimp?
Shrimp, in practical terms — its short cook time means the window between perfectly done and overcooked (rubbery) is often less than a minute. Salmon has more margin, typically 2-3 minutes between done and dry, simply because its total cook time is longer to begin with.
Can I cook salmon and shrimp straight from frozen?
Shrimp, yes, with very little penalty — add roughly a minute or two to the times above. Salmon is more affected: cooking from frozen adds about 50% to the total time, since the fillet has to thaw and cook in the same session rather than starting from a consistent temperature throughout. If both are frozen and you're short on time, thaw the salmon (a 1-inch fillet thaws in about 20-30 minutes in cold water) and cook the shrimp straight from the freezer.