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Why must fish cooking time be carefully controlled?
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fish processing
Fish on a conveyor belt entering a processing plant, Newfoundland, Canada.
Cooking time for fish must be carefully controlled for two primary reasons: safety and nutritional quality.
- Safety: Cooking is essential to kill pathogenic microorganisms, such as bacteria, viruses, and parasites, which can cause foodborne illnesses.12
- Nutritional Quality: Regulating the cooking time is necessary to prevent the excessive loss of nutrients. Prolonged exposure to heat can lead to nutrient degradation, oxidation, or the leaching of water-soluble nutrients into the cooking liquid.1
While proper cooking is vital for safety, it is also important to avoid overcooking to maintain the desired texture and flavor of the fish. A common rule of thumb for achieving these goals is to cook fish for 10 minutes per inch of thickness, adding 5 minutes if the fish is prepared in a sauce, and doubling the time for frozen fish.13