The first category is the
firm, white-fleshed swimmers. These are the fish built for constant motion in current. Their flesh is dense, clean, and holds its shape. When you press a fillet of a truly fresh one, it should spring back like a firm mattress. There’s no give.
Branzino is the prince here, but it’s not alone.
Orata (gilthead seabream) belongs firmly in this camp: its flesh is even a bit denser, with a distinctive, sweet nuttiness from the herbivorous diet.
Spigola (that’s
branzino, sea bass) is leaner, more delicate in flavor but just as firm in texture.
Pesce San Pietro (John Dory) is the ultimate test: bizarre looking, but flesh so firm and white it’s like the filet mignon of the sea. These are your fish for the grill, for the
cartoccio (in parchment), for salt-crusting. They can take direct, high heat and stay intact. You don’t need to baby them. A mistake I see? People poaching a
branzino fillet. You’re treating a marathon runner like an invalid. You’ll turn that beautiful, firm flesh to mush. Grill it. Roast it whole. Let the skin get crisp. That’s what the texture is for.