How to Season a Cast Iron Pan (and Which Oil to Use)

Here is how to season a cast iron pan: wash and fully dry it, rub a very thin coat of high-smoke-point oil over every surface, wipe off almost all of it, then bake the pan upside down at 450-500°F (230-260°C) for one hour and let it cool in the oven. Repeat that cycle three to five times for a new or stripped pan; a pre-seasoned pan only needs one round now and then plus regular cooking with fat.

Seasoning is not a sauce or a cleaning product. It is a thin layer of oil that heat has turned into a hard, slick, plastic-like coating bonded to the iron. That layer is what makes cast iron release food and resist rust. Get the oil layer thin and the heat high enough, and almost any common cooking oil works; get it thick, and you end up with a sticky, blotchy surface no matter which oil you chose.

How to Season a Cast Iron Pan in the Oven, Step by Step

The oven method gives the most even coat because the whole pan, handle included, reaches the same temperature. Plan on about 90 minutes per round, most of it hands-off.

1. Preheat the oven to 450-500°F (230-260°C). Lodge’s care guidance uses this range. Below about 400°F, oil tends to stay tacky instead of hardening. Place a sheet of foil or a baking sheet on the lower rack to catch drips.
2. Wash the pan. Use warm water and a little dish soap. Modern dish soap will not strip polymerized seasoning, and for a new or stripped pan you want to remove any dust or factory residue. Scrub off rust with steel wool if needed.
3. Dry it completely. Towel it off, then set it on a burner over medium heat for 3-5 minutes until every trace of moisture is gone. Water trapped in the pores causes rust spots and uneven seasoning.
4. Apply a small amount of oil. About half a teaspoon is enough for a 10-12 inch skillet. Rub it over the cooking surface, the sides, the bottom and the handle with a paper towel or lint-free cloth.
5. Wipe it off. With a clean towel, buff the pan until it looks almost dry, with only a faint sheen. This is the step most people skip. Excess oil pools, beads up and bakes into sticky brown spots.
6. Bake upside down for one hour. Turning the pan over lets any remaining excess drip away instead of collecting in the bottom.
7. Turn the oven off and let the pan cool inside. Slow cooling gives the coating time to set and avoids thermal shock. Allow 45-60 minutes.
8. Repeat. For bare or stripped iron, do 3-5 rounds. Each layer is microscopically thin; the dark, even finish comes from stacking several.

Why each step matters

Seasoning forms when fats break down under heat and link together into a solid polymer. That reaction needs a thin film so oxygen can reach all of it and enough heat to push the oil past its smoke point. A thick coat cannot cure all the way through, which is why it stays soft and sticky. Wiping and inverting are both about keeping the film thin.

Best Oil for Seasoning Cast Iron

The best oil for seasoning cast iron is one you have on hand that has a fairly high smoke point and is relatively unsaturated. Canola, vegetable shortening, grapeseed and sunflower oil all build good seasoning when applied thinly. Smoke points below are approximate for refined oils and vary by brand and processing.

Commercial blends such as Crisbee Stik (beeswax plus oils) and Field Company Cast Iron Seasoning Oil (grapeseed, sunflower and beeswax) are convenient because they spread very thinly, but they are not required. A bottle of canola oil does the same job.

Do not overthink smoke point

You will bake well above the smoke point of every oil in the table, and that is intentional. Smoke point mainly matters for how much smoke you get and how quickly the oil cures. Ventilate the kitchen, run the hood fan and expect some smoke during the first round.

How to Season a New Cast Iron Skillet

Almost every cast iron skillet sold today, including Lodge, Utopia Kitchen, Cuisinel and Mercer Culinary models, arrives pre-seasoned. That factory coat is real seasoning, so you do not need to strip it or run five oven rounds. Do this instead:

1. Rinse and wash with warm water and a little soap to remove dust and any wax or packaging residue.
2. Dry on a burner for a few minutes.
3. Apply a thin wipe of oil and buff it nearly dry.
4. Heat it once, either in the oven at 450-500°F for an hour or on the stovetop over medium until it just starts to smoke, then let it cool.
5. Start with fatty foods. Bacon, shallow-fried potatoes, cornbread and seared meats build seasoning fastest. Leave eggs and delicate fish for a few weeks.

Factory seasoning can look slightly brown or patchy at first. That is normal and usually darkens to a uniform black within a few weeks of regular cooking.

Stovetop Seasoning: The Quick Touch-Up

You do not need the oven every time. After cleaning, a quick stovetop round keeps the surface in shape:

1. Dry the clean pan over medium heat.
2. Add a few drops of oil and rub them in with a folded paper towel held in tongs.
3. Keep heating for 3-5 minutes until the oil just begins to smoke and the surface goes from glossy to matte-dark.
4. Turn off the heat and let it cool on the burner.

This only seasons the cooking surface and inner walls, so do a full oven round every few months or whenever the outside starts to look dull or rusty.

How Many Coats and How Long It Takes

Troubleshooting Common Seasoning Problems

• Sticky or tacky surface: too much oil or not enough heat. Put it back in a 450-500°F oven for another hour without adding oil. If it is very gummy, scrub with hot water and a stiff brush first.
• Brown, splotchy patches: the seasoning is still thin or partly cured. More rounds, or simply more cooking, will even it out.
• Small droplet bumps: oil pooled before curing. Scrub them down with steel wool or a chainmail scrubber and do one thin round.
• Flaking black bits: usually old, thick layers or flaxseed coats letting go. Scrub away the loose flakes and re-season the bare spots. Flakes of polymerized oil are not iron and are not considered harmful, but they are a sign of poor adhesion.
• Rust spots: scrub to bare metal, rinse, dry on the stove and season right away.
• Food sticking after seasoning: preheat the pan properly for 5 minutes, use enough fat, and let proteins release on their own before flipping.

Keeping the Seasoning After You Build It

Day-to-day care matters more than the initial seasoning. These habits keep the surface building rather than wearing away:

• Wash soon after cooking with hot water and a brush or chainmail scrubber; a little dish soap is fine.
• Do not soak cast iron or put it in the dishwasher.
• Always dry on the burner and wipe on a few drops of oil while the pan is warm.
• Limit long, acidic simmers like tomato sauce or wine braises until the seasoning is well established; they can dull it.
• Store it dry, uncovered or with a paper towel inside if you stack pans, so moisture does not collect.

The site’s existing guides cover the related jobs of stripping old seasoning and restoring a rusted skillet; this guide focuses only on building and maintaining the seasoning layer itself.

Gear That Helps

None of this is required, but a few inexpensive tools make seasoning and upkeep easier.

• Lodge Cast Iron Seasoning Spray: 100% canola oil in a spray can · very even thin coat · handy for oven rounds on large or deep pieces.
• Crisbee Stik: beeswax and oil blend in a push-up stick · spreads extremely thin · good for post-cleaning touch-ups.
• The Ringer cast iron cleaner: stainless steel chainmail, 8 x 6 inches · removes stuck food without scraping away seasoning · rinses clean.

Frequently Asked Questions

What temperature do you season cast iron at?

Season cast iron at 450-500°F (230-260°C) for one hour, which is the range Lodge recommends. Lower temperatures often leave the oil sticky because it does not fully cure.

Can I use olive oil to season cast iron?

You can cook with olive oil in cast iron, but extra virgin olive oil is not ideal for building initial seasoning because it tends to stay tacky. Refined oils like canola, sunflower or grapeseed give a harder, more even coat.

How many times should I season a cast iron pan?

A new pre-seasoned pan needs one light round at most. A stripped or badly rusted pan needs 3-5 thin oven rounds, followed by regular cooking with fat to keep building the layer.

Why is my cast iron sticky after seasoning?

Stickiness means the oil layer was too thick or the oven was not hot enough for it to fully polymerize. Bake it again at 450-500°F for an hour without adding more oil, and wipe off more oil next time.

Is flaxseed oil the best oil for seasoning cast iron?

Flaxseed oil can create a very hard, glossy finish, but many cooks find it flakes off after a few months of use. Canola, shortening or grapeseed oil are more forgiving and widely recommended.

Should I season the outside and handle of the pan too?

Yes. The outside and handle can rust as easily as the cooking surface, so oil and bake the whole pan during oven seasoning. Stovetop touch-ups only cover the inside.

Can I season cast iron on a grill?

Yes. A covered gas grill held at 450-500°F works like an oven and keeps smoke out of the kitchen. Place the pan upside down over indirect heat and let it cool in the closed grill.

Last updated: October 2026. Temperature guidance follows Lodge’s published care instructions.