Fish processing
Fish processing is the preparation and preservation of fish for consumption. It includes cleaning, filleting, curing, freezing, and packaging.
Fish filleting: Fish filleting removes the flesh from a fish’s skeleton to produce boneless or nearly boneless portions. It is a central cutting operation that turns whole fish into portions ready for cooking or further processing.
Canned fish: Canned fish is fish sealed in containers and heat-processed to achieve commercial sterility. Canning combines packaging and heat treatment to make shelf-stable fish products.
Fish freshness: Fish freshness is the condition of fish after harvest, judged by sensory, chemical, and microbiological changes. Freshness at intake sets the quality ceiling for subsequent processing.
HACCP: HACCP is a preventive food-safety system that identifies hazards and controls them at critical points in production. Fish plants use hazard analysis and critical control points to manage risks such as temperature abuse and contamination.
Fish curing: Fish curing preserves fish using salt, drying, smoking, fermentation, or combinations of these methods. Curing extends shelf life by reducing water availability or altering the fish’s environment.
Surimi: Surimi is washed, minced fish muscle used as a base for formed seafood products. It demonstrates how processing can transform fish flesh into a standardized ingredient.
Rigor mortis in fish: Rigor mortis in fish is the postmortem stiffening of muscle caused by biochemical changes after death. Its timing affects fillet texture, yield, and the best time for cutting.
Fish processing waste: Fish processing waste consists of discarded or underused materials such as heads, bones, skins, and viscera. Filleting and other operations generate residues whose disposal or recovery affects environmental impact.
Freezing of fish: Freezing of fish lowers its temperature enough to preserve it by slowing microbial growth and chemical reactions. Rapid, controlled freezing limits deterioration while retaining quality for later use.
Fish sauce: Fish sauce is a salty, fermented condiment made from fish and salt. It is a liquid product made by fermenting fish rather than preserving intact flesh.