Cod Cooking Time Calculator
Cod is a thick, meaty white fillet, usually chunkier than haddock. Choose the thickness and method for the time, the temperature and how to check the flake.
The time is per piece. This only affects how you space them out.
Answer
10–13 minutes
The details
How to tell it is done
Press the thickest part with a fork. Cooked cod turns from glassy to white and separates into big flakes. If it still resists, give it two more minutes.
Times are a guide. Thickness, how cold the food was and how full the oven is all change the answer, so check before you serve.
Next step
Worth knowing
- Thin: Up to 2cm, the tail end.
- Cod is a thick, meaty fish, so thickness matters far more than the weight of the piece.
- Frozen fillets can go straight in the oven. Add about 10 minutes and check carefully.
- Carry-over heat keeps cooking fish after it leaves the pan, so stop just before it looks perfect.
Food safety
- Official UK guidance checks fish by sight rather than by a single temperature: the flesh should turn opaque and flake apart easily with a fork. Prawns, scallops, crab and lobster should be firm and opaque, and mussels, clams and oysters should have opened, throw away any that stay shut.
- Cooking times are a guide only. Ovens, joints and starting temperatures vary, so always check the food is cooked before serving rather than relying on the clock.
Source: Food Standards Agency, Cooking your food: cooking fish and seafood (GOV.UK) · Reviewed 2026-09-11 · Guidance version 2.0.0
Source: Food Standards Agency, Cooking your food: cooking fish and seafood (GOV.UK) · Reviewed 2026-09-11 · Guidance version 2.0.0
Reference and detail
Cod is done when it flakes
Press the thickest part with a fork. Cooked cod separates into big, firm white flakes and looks opaque all the way through. Translucent means it needs another minute or two.
Thicker than haddock, so it takes longer
A cod loin is usually noticeably thicker than a haddock fillet of similar weight, so it needs longer in the oven or pan even at the same setting. Measure the deepest part rather than guessing from the weight or assuming it cooks like haddock.
Baking and roasting, including from frozen
A thick cod loin roasts well from chilled, and thinner frozen fillets can go straight into a hot oven. Add extra time and check the middle carefully rather than trusting the pack instructions alone. Fish this delicate keeps cooking on the plate, so take it out a shade early; overcooked cod goes dry and falls apart.
Questions and answers
Questions about cooking cod
What is the difference between cod loin and cod fillet?
Loin is cut from the thickest part of the fish, nearer the head, and is denser, more even in thickness and holds together better. Fillet includes the thinner tail end, which cooks faster and flakes more readily, so it is easier to overcook.
Why does cod sometimes turn watery when I cook it?
Cod holds a lot of natural moisture, and if it is cooked too gently or crowded in the pan, that water leaches out rather than evaporating, leaving the fish sitting in liquid. Pat the fillet dry first and cook it over a properly hot pan or oven so it sears rather than stews.
Why does cod fall into big flakes rather than staying together?
Cod has large natural muscle segments, so it separates into big, firm flakes once cooked rather than the finer flake of something like haddock. This is normal and is what you want to see when you test it with a fork.
Safety guidance reviewed against Food Standards Agency sources on 11 September 2026. How we calculate cooking times and safety guidance.