Slide show: Tips for cooking fish
Photo of properly cooked poached cod
Previous Next 3 of 6 How to tell when it's done

Fish should be cooked to an internal temperature of 145 F. But if you don't have a food thermometer, you can determine whether fish is properly cooked by slipping the point of a sharp knife into the flesh and pulling it aside. The flesh should be opaque and separate easily, as in this photograph of poached cod.

See more Multimedia