Fish

Buy fish that smells clean and briny, like the sea — not 'fishy.' The flesh should be firm, translucent, and moist, not dry or browning at the edges.

Whole fish should have bright, clear eyes, red gills, and shiny scales. Fillets should glisten and spring back when pressed. Ask to smell it before buying; a good fishmonger expects this.

Seek out sustainable choices — check a current seafood guide for your region. Farmed fish (like U.S. farmed catfish, trout, and arctic char) and well-managed wild fisheries (Alaska salmon, Pacific sardines) are responsible options.

Fish is highly perishable — keep it as cold as possible. Store in the coldest part of the refrigerator (32°F), ideally on ice in a colander over a bowl, and use within 1–2 days.

If you cannot cook it immediately, freeze it. Wrap tightly to prevent freezer burn; lean fish (cod, halibut) keep 6 months, fatty fish (salmon, mackerel) about 2–3 months.

Thaw frozen fish slowly in the refrigerator overnight, or in a sealed bag under cold running water. Do not refreeze thawed fish.

The cardinal rule of fish: do not overcook. Fish turns dry and chalky past just-done; it is ready when it flakes easily and turns opaque.

Pan-Searing: Pat dry, season, and sear skin-on fillets in a hot pan for crisp skin and moist flesh — 3–4 minutes skin side down, then finish briefly.

Roasting: A whole fish or thick fillet roasted at 400°F with olive oil, lemon, and herbs cooks evenly and stays moist.

Grilling: Firm fish (salmon, tuna, swordfish) grill beautifully over medium-high heat; oil the grates and the fish to prevent sticking.

Poaching: Gentle poaching in broth or court bouillon is ideal for delicate fish and for preparations like salmon coulibiac.

Curing: Salt and sugar cure salmon into gravlax in 24–48 hours — no cooking required, just a clean, fresh fillet.

Canning: Tuna, salmon, sardines, and mackerel are canned for long storage — a pantry staple for sandwiches, salads, and quick meals.

Smoking: Smoked salmon, mackerel, and trout are delicacies; hot-smoked fish keeps refrigerated for weeks, cold-smoked for a shorter time.

Curing: Gravlax (salt-sugar-dill cured salmon) keeps refrigerated for up to a week and freezes well.

Drying: Dried fish (bacalhau, stockfish) keeps for months and is rehydrated for traditional dishes worldwide.

Pickling: Pickled herring and escabeche of fish are traditional preserved preparations with bright, tangy flavor.

Fish is one of the healthiest proteins — lean, high-quality protein rich in omega-3 fatty acids (EPA and DHA), vitamin D, B12, and selenium.

Fatty fish (salmon, mackerel, sardines, trout) are the best sources of omega-3s, which support heart, brain, and eye health and reduce inflammation. Aim for two servings of fatty fish per week.

Lean white fish (cod, halibut, snapper) are lower in omega-3s but still excellent lean protein, rich in B vitamins and minerals.

Larger predatory fish (tuna, swordfish, shark) can be higher in mercury; vary your choices and follow local advisories, especially if pregnant.

Salmon are anadromous — they hatch in fresh water, migrate to the ocean to grow, and return to the exact stream where they were born to spawn, navigating by smell.

Tuna are some of the fastest fish in the sea — bluefin tuna can swim over 40 miles per hour and migrate across entire oceans.

The word 'halibut' comes from 'haly' (holy) and 'flote' (flat fish) — it was eaten on holy days in medieval England.

Cod was so important to the economy of New England that a wooden 'sacred cod' has hung in the Massachusetts State House since 1784.

Fish sustainability varies enormously by species and fishery. Some populations are overfished or caught with destructive methods; others are well-managed and abundant.

Use a current seafood guide (like the Monterey Bay Aquarium Seafood Watch) to choose well. U.S. fisheries are generally well-managed under federal law, making domestic fish a reliable choice.

Small, oily fish (sardines, anchovies, mackerel) are typically the most sustainable — they reproduce quickly, are low on the food chain, and are often caught with minimal bycatch. Farmed bivalves and some farmed finfish (U.S. catfish, trout, arctic char) are also strong choices.