How to Smoke Fish: The Complete Beginner's Guide

The short version

1. Pick a fatty, firm fish like salmon, trout or mackerel.
2. Brine it in the fridge with salt and sugar.
3. Rinse, pat dry and let it air-dry until the surface feels tacky. That tacky layer is the pellicle.
4. Smoke it low, around 175–225°F, with a mild wood like alder or apple.
5. Pull it when the thickest part hits 145°F.
6. Cool it, wrap it and keep it cold.

Everything below is the "why" and "how" behind those six steps. This guide covers hot smoking, where the fish is fully cooked. If you're curious about lox and other cold-smoked styles, read hot smoking vs. cold smoking fish first. We recommend hot smoking for anyone doing this at home.

Step 1: Pick the right fish

Fish with more fat stay moist in the smoker and soak up smoke flavor. Lean fish can work, but they dry out faster and need closer watching.

Good first fish:

• Salmon: the classic. Try our hot-smoked salmon.
• Trout: mild and quick. See smoked trout.
• Mackerel: rich and bold. See smoked mackerel.
• Black cod (sablefish): buttery and hard to overcook. See smoked black cod.
• Whitefish: a Great Lakes favorite and the base for smoked whitefish dip.

For a full breakdown of fat levels, flavors and which fish to skip, see the best fish for smoking.

Buy fish that smells clean and ocean-fresh, not sour or fishy. Keep it at 40°F or below until it goes into the brine. If it's frozen, thaw it in the fridge overnight, or seal it in a bag and set it in cold water. Never thaw fish on the counter.

Leave the skin on fillets. It holds the fish together on the grate and peels off easily once it's cooked. Pull out the pin bones with tweezers or pliers before you brine.

Step 2: Brine the fish

Brining does three jobs. It seasons the fish all the way through, helps it hold onto moisture and firms up the flesh. It also helps form the pellicle in the next step. Always brine in the fridge, never on the counter.

You can use a wet brine or a dry brine. Both work.

	Wet brine	Dry brine
What it is	Fish soaks in salt-sugar water	Salt-sugar mix packed onto the fish
Starter ratio	1/4 cup kosher salt + 1/4 cup brown sugar per 4 cups water	About 1 part kosher salt to 2 parts brown sugar
Typical time	1–4 hours for fillets, up to 8 for thick pieces	4–8 hours, shorter for thin fillets
Texture	Moist, evenly seasoned	Firmer, a bit denser
Best for	Trout, whitefish, catfish, chunks	Salmon, black cod, salmon candy

A few brine tips:

• Stronger brines work faster. Some university extension guides use a much saltier brine, about 1 cup of salt to 7 cups of water, for about an hour or less. If you go that route, keep the time short.
• Thin pieces need less time. A thin trout fillet can be ready in an hour. A thick salmon slab may need most of a day.
• Use plain salt. Kosher or canning salt works best. Skip iodized salt. Brands of kosher salt differ in how salty a cup is, so stick with one brand once you like the results.
• Add flavor if you want. Garlic, black pepper, bay leaf, citrus zest, soy sauce or a little Cajun rub all work.
• Use a glass or food-safe plastic container. Never reuse brine.

When the time is up, rinse the fish briefly under cold water and pat it very dry.

Step 3: Let a pellicle form

This step is easy to skip and shouldn't be. Set the rinsed fish on a rack, skin side down, and put it in the fridge uncovered for 1–3 hours. A small fan in front of the rack speeds things up.

The fish is ready when the surface looks a little shiny and feels tacky, almost like tape. That thin, sticky skin is the pellicle. Smoke clings to it, which gives you better color and flavor. It also helps hold moisture in and keeps the white protein (more on that below) from leaking out.

Step 4: Set up the smoker

Fish cooks fast and doesn't need a hot fire. Low heat keeps it moist.

• Start low: run the smoker around 175–200°F for the first hour.
• Finish a little warmer: raise it to 200–225°F until the fish is done.
• Keep the smoke clean: wait for thin, light blue smoke. Thick white smoke makes fish bitter.

Any smoker that holds low temps works. Electric and pellet smokers are the easiest for fish because they stay steady at low settings. See the best electric smokers for beginners and the best pellet smokers under $1,000.

Oil the grate or use a grill mat, and lay fillets skin side down. If your smoker runs hot on one side, put the thickest pieces there.

Step 5: Choose the wood

Fish is delicate, so go easy on smoke.

Wood	Strength	Good with
Alder	Very mild	Salmon, trout, whitefish
Apple	Mild	Most fish, shellfish
Cherry	Mild	Salmon, black cod, salmon candy
Maple	Mild	Salmon candy, trout
Oak	Medium	Mackerel, bluefish, mullet
Hickory	Strong (use lightly)	Catfish, carp

Skip mesquite for fish. It can taste harsh and bitter. For more pairings, see our wood pairing chart.

Step 6: Smoke until it reaches 145°F

The FDA says fish is safe at 145°F inside. Check the thickest part with an instant-read or leave-in thermometer. Our roundup of the best meat thermometers for smoking has options.

Without a thermometer, look for flesh that has turned from shiny and see-through to opaque, and flakes easily with a fork. But a thermometer is the only way to be sure.

Some extension guides for home smokehouses go further and suggest holding the fish at 160°F for 30 minutes, especially for fish you plan to store a while. That gives an extra safety margin, but it also dries the fish more. Either way, 145°F is the minimum.

Rough times at 175–225°F:

Cut	Typical time
Thin trout or whitefish fillets	1–2 hours
Salmon fillet, about 1 inch thick	1 1/2–3 hours
Thick salmon or black cod pieces	2–4 hours
Fish strips for candy or jerky	3–6 hours
Shrimp and scallops (smoker at 225–250°F)	25–45 minutes

These are guides, not rules. Go by temperature. For other meats, see our smoking times and temperatures chart.

Troubleshooting

White stuff on the fish. That's albumin, a protein that pushes out of fish as it cooks. A little is normal and safe to eat. A lot usually means the heat was too high or the fish cooked too long. Fixes: brine first, let a good pellicle form, start low and don't rush the temperature up.

Fish is too salty. Brine for less time, or use a weaker brine. You can also soak the rinsed fish in fresh cold water for 15–30 minutes before drying.

Fish is dry. Pull it closer to 145°F, use a fattier fish or run the smoker cooler.

Bitter or sooty taste. The smoke was too heavy or dirty. Use less wood, a milder wood and wait for clean, thin smoke.

Fish stuck to the grate. Oil the grate, use a grill mat and leave the skin on.

Pieces fell apart. Firm up the fish with a longer brine, and lift it with a wide fish spatula or a sheet of foil.

Storing smoked fish

Smoking adds flavor, but it doesn't preserve the fish. Treat it like any other cooked food.

• Cool it, then wrap it tightly and refrigerate at 38°F or below.
• Eat it within about 1–2 weeks. Moist, lightly brined fish is best toward the short end.
• Freeze it for longer storage. It keeps its best quality for about 2–3 months.
• Don't leave it out more than 2 hours, or 1 hour on a day above 90°F.
• If you vacuum-seal it, it still has to stay in the fridge or freezer. Low-oxygen packs kept warm can let the bacteria that cause botulism grow.

The FDA advises that pregnant women, young children, older adults and people with weak immune systems avoid refrigerated smoked fish unless it's cooked into a hot dish, like a casserole. That includes hot-smoked fish that has been chilled.

What to make next

• Salmon candy, sweet glazed nuggets
• Salmon jerky
• Smoked tuna
• Smoked catfish
• Smoked shrimp, smoked scallops and smoked lobster tails