Brine for Smoking Fish

A good fish brine is the difference between smoked salmon that tastes like the inside of a smoker and smoked fish with real seasoning all the way through. This is the classic base every old-school smokehouse starts from: water, salt, sugar, in a ratio that draws moisture out, then pulls seasoning back in.

Stir until both the salt and sugar fully dissolve, otherwise the fish sitting on crystals at the bottom will end up patchy. Submerge the fish completely, weighing it down with a plate if needed, and park it in the fridge. Fillets under an inch need four to six hours. Thicker cuts or whole trout can sit overnight.

After brining, rinse the fish and pat it dry, then let it air dry on a rack in the fridge for an hour or two. That dried surface is the pellicle, a slightly tacky skin that gives smoke something to stick to.

Chef Tips

• Use non-iodized salt. Kosher or pickling salt dissolves cleanly without the metallic edge iodized table salt leaves behind.
• Keep the fish fully submerged and very cold, ideally below 38°F (3°C). Warmer brining is a food-safety risk with raw fish.
• Do not reuse brine. Once raw fish has sat in it, it goes in the sink.
• Brown sugar swapped in for white adds a deeper caramel note that works well with salmon, trout, and mackerel.

Variations

• Add a handful of crushed black peppercorns, bay leaves, and a few smashed garlic cloves for a savory brine suited to mackerel or bluefish.
• Swap half the sugar for maple syrup when brining salmon for a Pacific Northwest style smoke.
• Stir in a splash of bourbon or dark rum toward the end of the brine time for smoked trout with a grown-up finish.