Plenty of home cooks who grill steaks with confidence freeze up at the thought of putting fish over fire. The fear is understandable, since fish can stick, tear, and fall through the grates if you rush it. But the rules are simple once you know them, and grilled fish rewards you with smoky flavor and crisp skin that no pan can match. It starts, as so much good cooking does, with a clean and properly heated grill.
The most common mistake is trying to flip too soon. Just like searing meat, a fish fillet will release from the grates on its own once a crust forms, usually after four or five minutes over medium-high heat. If it resists when you nudge it, leave it be for another minute. Brushing both the grates and the fish lightly with oil helps, and keeping the skin on gives the fillet a sturdy layer that protects the delicate flesh from the flames.
Choose the right fish for the job and the whole task gets easier. Firm, meaty species like grouper, salmon, and swordfish hold together beautifully over direct heat, while flaky delicate fish do better wrapped in foil or set on a cedar plank. Season simply, with salt, oil, and a squeeze of citrus at the end, and let the smoke be the star. Master these few habits and the grill becomes one of the best tools you own for cooking seafood.
