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Chapter 14
Understanding Fish and Shellfish
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Chapter Objectives1. Explain how the cooking qualities of fish are affected by its
lack of connective tissue.2. Determine doneness in cooked fish.3. Demonstrate the appropriate cooking methods for fat and lean
fish.4. List seven basic market forms of fish.5. Dress and fillet round fish and flatfish. 6. List and describe common varieties of saltwater and
freshwater fin fish used in North American food service.7. Identify the characteristics of fresh fish, and contrast them
with characteristics of not so fresh fish.8. Store fish and fish products.9. Understand the popular varieties of shellfish and discuss their
characteristics.10.Outline the special safe handling and cooking procedures for
shellfish.11.Open oysters and clams, split lobster, and peel and devein
shrimp.
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Composition and Structure The edible flesh of fish is like meat and
poultry, consisting of water, protein, fats and a small amount of minerals, vitamins.
Fish has very little connective tissue. This is a very important difference between fish and meat. It means: Fish cooks quickly Fish is naturally tender Moist-heat cooking is not used to tenderize
but to provide moistness When cooked, fish tends to fall apart easily
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Special Problems in Cooking Fish Doneness and flaking
When fish is cooked it breaks apart into natural separations called “flaking”.
Fish is often served overcooked, because of residual cooking after it is removed from the heat.
Observe these tests for doneness: If the fish just separates into flakes If there is bone, the flesh separates from the bone,
and the bone is not pink The flesh has turned opaque or white (depending
on the fish)Do not overcook!
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Cooking Fat and Lean Fish Lean fish are low in fat (like flounder, sole, cod).
Moist-heat methods - Lean fish is well suited to poaching
Dry-heat methods – If broiled or baked, lean fish should be basted
Dry-heat methods with fat – Lean fish may be fried or sautéed. The fish gains added palatability from the added fat
Fat fish are high in fat (like salmon, tuna, trout, and mackerel). Moist-heat methods - Lean fish can be poached like
lean fish Dry-heat methods – Fat fish are well suited to broiling
and baking. It removes excess oiliness. Dry-heat methods with fat – Fat fish can be cooked in
fat, but take care to drain before serving.
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Fish-Market Forms
Whole or round Drawn Dressed Steaks Fillet Butterflied fillets Sticks or tranches
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Cutting Fish – Market Forms Buying processed fish versus cutting it
yourself Generally speaking it is better to do your
own fish butchering based on: Freshness Cost Availability Usage of bones heads, fins, and fat The overall consideration is what you plan to
do with the fish and what forms are economical to your operation
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Saltwater Fish - Flatfish
Flounder English sole Petrale sole Domestic Dover sole Turbot
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Saltwater Fish - Round Fish Artic Char Atlantic cod Atlantic salmon Black Sea bass Bluefish Chilean Sea bass Chinook or King Salmon Cod Coho or silver salmon Grouper Haddock Herring Jack John Dory Mackerel Mahi-mahi Monkfish Ocean Perch Orange Roughly
Pacific cod Pollock Pompano Porgy Red Mullet Red Snapper Salmon Sardine Shad Shark Skate Striped Bass Swordfish Tilefish Triggerfish Tuna Wahoo or Ono Weakfish Whiting
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Freshwater Fish
Catfish Eel Perch Pike
Tilapia Trout Whitefish
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Handling and Storage
The most important concern with storage is temperature All fish should be stored at 30° to 34° F Keep moist Prevent fish odors from transferring to other
foods Protect the delicate flesh from bruising and
being crushed Storage time not to exceed 1 to 2 days, if
fresh
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Due to increased demand and improved preservation and transportation techniques, good quality fish and shellfish is readily available
Most fish and shellfish is expensive All are highly perishable Cooking times are generally short The taste is generally mild and delicate Special attention has to be given to the
perishability to produce high quality food
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Determining Freshness Freshness can be checked by:
Smell Eyes Gills Texture Fins and scales Appearance Movement
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Frozen, Canned, and Other Processed Fish
Federal Inspection Fish and shellfish grading is voluntary They are performed on a fee-for-service
program by the Unites States Department of Commerce and National Oceanic and Atmospheric Administration (NOAA) to ensure safety of fresh and processed fish
Frozen – accounts for more daily consumption than fresh
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Checking quality of frozen fish Should be frozen when received Look for a fresh, sweet odor, no strong, fishy odor Fish should be wrapped well with no freezer burn Some frozen fish is glazed with a thin layer of ice
to prevent drying Storage
Be stored at 0° F Well wrapped to prevent freezer burn Maximum time of storage
Fat Fish: 2 months Fat fish: 6 months
Frozen, Canned, and Other Processed Fish (cont’d)
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Frozen raw fish Thaw in refrigerator, allowing 18 to 36 hours Small pieces can be cooked from frozen state, up
to 8 ounces
Canned Fish: Check for signs of damaged or dented cans Store in a cool dry place Opened fish should be put in a wrapped
container, labeled, and can be kept for 2 to 3 days
Thawing and Handling
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Mollusks are soft sea animals. There are three types that are commonly eaten: Bivalves have a pair of hinged shells (like clams) Univalves have a single shell (like conch) Cephalopods have a single thin internal shell
called a cuttlebone (like octopus) Crustaceans are animals with segmented
shells and jointed legs (like lobster)
Shellfish
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Miscellaneous Seafood
Snails or escargot Frogs’ legs Surimi - processed seafood shaped
to look like more expensive types of fish
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Fish and shellfish are low in calories, fat, and sodium and high in vitamins A, B, and D and protein. Fish are high in a group of polyunsaturated fatty acids called Omega-3.
Nutrition
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Copyright ©2007 John Wiley & Sons, Inc.