How do you get fish smell out of a cast iron skillet?

Get fish smell out of a cast iron skillet by scrubbing the cooking surface with warm water and a flat utensil, drying the pan completely, then heating a thin layer of cooking oil into the iron. The smell lives in the oil and residue left on the seasoning, so the fix is to remove that residue and reseal the surface rather than to soak the pan.

Soaking is the one thing to avoid. The makers of the skillets in our Best Cast Iron Skillets for Five Different Kitchens guide describe hand washing and immediate drying, and one of them states plainly that cast iron can rust, so it should not be soaked overnight or left to air dry.

Why fish smell stays in the pan

Cast iron is seasoned with oil, and that oil layer is what holds odor. Lodge states that it seasons its cookware with 100% vegetable oil and that the more you use the iron, the better the seasoning gets. A seasoned surface is a thin, polymerized oil film, and fish oils sit on top of it and work into any patch that is uneven or still tacky.

Victoria describes its pan as having a textured preseasoned skin that builds seasoning with each use, seasoned with non-GMO, kosher-certified flaxseed oil. A textured surface holds more residue in its low spots than a polished one, which is why a quick rinse often leaves a faint fish note behind. The residue, not the iron itself, is the source.

Backcountry Iron notes that its 12 inch round skillet has a smoother finish than other leading brands and suggests comparing it with Wagner and Griswold vintage cast iron. A smoother cooking surface gives residue less to grip, though the cleaning routine still decides whether odor stays.

Clean the pan step by step

Start with warm water and scrape the cooking surface with a flat utensil, which is the method Backcountry Iron publishes. It also states that a stainless steel chainmail scrubber can lightly polish the cooking surface to a smooth patina. Work over the whole interior, including the curve where the wall meets the base, since that is where oil pools.

Rinse and wipe dry immediately. Backcountry Iron states that cast iron can rust, so it should be kept out of the dishwasher, not soaked overnight, and not air dried, and that the pan should be wiped dry right after cleaning with a new layer of oil applied to protect from rust. EDGING CASTING gives the same order for its 17 inch skillet: clean by hand in warm water, dry completely, then dry further on the stove at medium heat and season with natural oils.

Lodge keeps its instruction shorter: hand wash, dry, rub with cooking oil. That three step sequence is the whole routine. The stove drying step matters most for odor, because heat drives off the water and any volatile fish compounds still on the surface before they settle back into the oil film.

Heat a fresh oil layer into the iron

Once the pan is dry, set it on the stove over medium heat for a few minutes, then add a small amount of cooking oil and spread it thin with a paper towel. EDGING CASTING publishes this stove drying and oil seasoning step directly. The goal is a layer thin enough to look almost dry, because a heavy coat turns sticky and traps odor instead of sealing it.

Lodge states that its pans are seasoned with oil for a natural, easy-release finish that improves with use, and that the seasoning gets better the more you use the iron. Each thin oil layer heated into the pan adds to that film. A pan that smells of fish after cleaning usually needs this step repeated once or twice rather than a single wipe.

Victoria seasons with flaxseed oil, and Lodge with vegetable oil. Any neutral cooking oil works for the refresh layer. What matters is heat and thinness, not the specific oil, and the pan should be fully dry before the oil goes on.

What the makers publish about care

Care instructions vary in detail across the five picks. Lodge publishes hand wash, dry, rub with cooking oil, and lists the pan as at home in the oven, on the stove, on the grill or over the campfire. Victoria publishes that its pan can be used on the stove, on induction cooktops, in the oven, over a campfire or on a grill, and that it is PTFE and PFOA free.

Backcountry Iron publishes the most detailed cleaning text of the group, covering the warm water scrape, the chainmail scrubber, immediate drying and a new oil layer. EDGING CASTING publishes hand washing, complete drying, stove drying at medium heat and oil seasoning, plus a warning against the dishwasher and against air drying. Cuisinel publishes that its skillet is made from solid cast iron and pre-seasoned for repeated use with standard care and cleaning, and lists a tempered glass lid and a silicone handle holder as included accessories.

None of the five makers publishes a specific product for removing fish odor, and none publishes a deodorizing agent, a soak time or a temperature for burning off smell. This site has not compared any deodorizing method, and nobody at Lush has used these pans. The routine above follows only from the cleaning and seasoning steps the makers state.

Size, weight and handling while you clean

Pan size affects how easy the scrub and dry steps are. The Lodge skillet is 10.25 inches in diameter and weighs 5.35 pounds. The Victoria pan is 10 inches and weighs 4.8 pounds. Backcountry Iron lists a 12.25 inch diameter, 12.75 inches spout to spout, a handle length of 4.75 inches, and a weight of 7.0 pounds. Cuisinel lists a 12 inch size and a weight of 11.35 pounds.

The EDGING CASTING skillet is 17 inches and weighs 14.75 pounds, and it has two integrated loop handles on each side, which the maker states makes it easier to lift and move. A large pan is harder to hold under a tap, so set it down in the sink rather than holding it while you scrub.

Handles matter for the drying step. Lodge includes a red silicone hot handle holder with its 10.25 inch skillet, and Cuisinel includes a silicone handle holder that the maker states reduces heat transfer. Both makers state that an oven mitt or towel should still be used when handling hot cookware, so use one when you move a pan that has just come off the stove.

Keep the smell from coming back

Clean the pan soon after cooking fish rather than leaving it until morning. Backcountry Iron states that the pan should not be soaked overnight, and residue that sits gives odor more time to work into the seasoning. A warm water scrub while the pan is still warm, with care for the handle, removes most of the fish oil before it sets.

Dry on the stove every time, not just after fish. EDGING CASTING publishes stove drying at medium heat followed by oil seasoning, and that habit keeps the film even. An uneven film with bare patches is where odor collects, and a patch that has lost its seasoning will hold fish smell longer than a fully sealed surface.

Store the pan dry and uncovered if you can. A pan put away with moisture or a heavy oil coat can develop a stale smell that reads as fish the next time you heat it. A thin fresh layer of oil, heated in and wiped nearly dry, is the state the makers describe for a pan ready for its next use.