How to Season a Cast Iron Pan: Oven Steps, Oils, Reseasoning

To season a cast iron pan, wash and fully dry it, wipe on a very thin coat of neutral cooking oil, bake it upside down at 450 to 500°F for one hour, and let it cool in the oven. That is the method Lodge describes in its seasoning guide, and university extension services publish close variations. The details that decide whether you get a smooth, dark finish or a sticky one are the oil, how thin the coat is, and how many rounds you repeat. I have pulled those details together from the makers and extension services, and I flag where they disagree.

Table of Contents

TL;DR

Oven method: thin coat of oil, pan upside down, 450 to 500°F for one hour, cool in the oven. Repeat for more layers.
A new pan from a major maker usually arrives pre-seasoned, so you can cook in it right away.
Use a neutral, high smoke point oil such as vegetable oil, canola, or melted shortening. Wipe off nearly all of it.
Rusty or stripped pans need scrubbing, drying, and one or two oven coats. Healthy pans mostly need regular cooking.
Sticky or flaking seasoning almost always means too much oil or too many baked layers.

What seasoning actually is

Seasoning is a thin layer of oil that has been heated past its smoke point until it bonds to the iron. It is not a coating you apply once and own forever. It builds in layers, and cooking itself adds more.

According to Lodge’s Test Kitchen, the first layers you build may look uneven, and that is fine. The company says how and what you cook, hot spots on your stove, and the temperature setting all affect where the oil bonds, and the patchy layers interlock over time into a well-seasoned surface.

Field Company, a cast iron maker, says on its care FAQ that a pan is not truly non-stick until it has been used over a few months and built up dozens of interlocking layers. So a pan that sticks a little in week one is behaving normally. It is not a failed seasoning job.

Do you need to season a new pan first?

Usually not. Lodge states that its cast iron is seasoned at its South Pittsburg, Tennessee foundry with a thin layer of soy-based vegetable oil, so no at-home seasoning is required before first use. KitchenAid says the same about its cast iron: it arrives already seasoned, and oil is not necessary after washing the inside to maintain it.

Two cases are different:

Unseasoned or raw iron pans. If the maker or listing says the pan is unseasoned, follow the oven steps below before cooking.
Old, rusty, or stripped pans. A hand-me-down skillet or one that was scrubbed down to bare metal needs a full reseason.

If you are still choosing a pan, my cast iron skillet guide on sizes, brands and care covers what to look for, and the best cast iron skillet comparison lines up specific models.

The oven method, step by step

This is the standard approach. The steps below follow Lodge’s guide, with temperature differences from other sources covered in the next section.

Wash and dry completely. Use warm soapy water if the pan is new to you, rusty, or stripped. Then dry it with a towel and, if you like, a minute on a warm burner to drive off moisture.
Apply a very thin layer of oil. Rub oil over the whole pan with a cloth or paper towel: cooking surface, bottom, sides, and handle. Then wipe as if you were trying to remove it all. The pan should look dull, not shiny or wet.
Preheat the oven. Lodge says 450 to 500°F.
Line the rack below. Put aluminum foil on the bottom rack to catch drips.
Bake upside down. Place the pan on the center rack, face down, so excess oil cannot pool.
Bake for one hour. Then turn the oven off.
Cool in the oven. Leave the pan inside until it is cool enough to handle.
Repeat if you want a darker finish. Lodge says to repeat as needed to build several layers.

Ventilate first

This method deliberately takes oil past its smoke point. The N.C. Cooperative Extension Polk County Center, in its guide to seasoning and maintaining cast iron, advises turning on the hood vent for that reason. Open a window too. Once the smoke clears, some people reset the room with kitchen candle scents, but ventilation during the bake is the part that matters.

Oven temperature: what the sources say

The published numbers differ more than most guides admit. All of them end in the same place: a thin, hard, baked-on layer.

Source	Oven temperature	Fat	Time	Repeats
Lodge	450 to 500°F	Cooking oil, very thin	1 hour	As needed
N.C. Cooperative Extension	550°F	Cooking oil, wiped to a thin layer	1 hour	3 cycles
Mississippi State University Extension	350°F	Vegetable shortening	1 hour	3 to 4 times
YETI	500°F	Neutral cooking oil	1 hour	Not specified

Sources: Lodge, N.C. Cooperative Extension, Mississippi State University Extension, and YETI’s skillet FAQ.

A practical reading: if your oven runs hot or your kitchen is small, the 450°F end of Lodge’s range produces less smoke. If you want to follow one source exactly, pick one and do not blend steps. Whatever the temperature, the hour of baking and the thin coat are the constants.

Which oil to use

The safest answer is a neutral cooking oil with a high smoke point. According to Lodge’s Test Kitchen, vegetable oil, melted shortening, or canola oil all work for re-seasoning. Mississippi State University Extension uses vegetable shortening in its instructions.

Fats Lodge advises against

Lodge says it does not recommend beef tallow, lard, or ghee for seasoning because they can go rancid. It adds that those fats are fine for cooking in the pan. That is a useful distinction: season with a neutral oil, cook with whatever you like.

Grapeseed, flaxseed, and the polyunsaturated argument

This is where makers split. Field Company says it uses a blend of organic grapeseed oil, organic sunflower oil, and beeswax, and advises grapeseed or whichever pantry oil has the highest polyunsaturated fat content. It specifically does not recommend flaxseed oil, saying it creates a more brittle seasoning that flakes easily. Many popular guides push flaxseed, so if you have tried it and your seasoning flaked, that is the maker’s stated reason.

My pick for a first attempt

For a beginner, I would reach for plain vegetable oil or canola. They are cheap and in most pantries, and the makers above name them directly. Specialty oils are optional.

The stovetop shortcut

If you only need a quick refresh and do not want to heat the oven, YETI describes a stovetop method. Heat the skillet over low to medium heat, coat it with oil, raise the heat to high, and heat it until the pan stops smoking. Ventilate even more than you would for the oven, because this is open smoke at your face level. Let the pan cool before wiping it down.

The stovetop version builds a lighter layer than a full one-hour bake. It suits touch-ups, while the oven suits a pan that is stripped or rusty.

What good seasoning looks and feels like

A well-seasoned pan is dark brown to black, with a slight sheen rather than a wet shine. It should feel smooth and dry to the touch, never tacky. Patchy color is normal early on, as Lodge notes, and it evens out as you cook.

Signs to watch:

Tacky or sticky surface: the oil layer was too thick. See my note on cast iron that is sticky after seasoning.
Flaking or peeling black bits: often a sign of stacked layers. My piece on seasoning flaking off explains the layering.
Orange or reddish spots: surface rust, which is fixable.

Reseasoning after rust or stripping

Rust looks alarming but is a surface issue on iron. Two makers describe the fix.

YETI’s skillet FAQ says a solution of one part vinegar to two parts water on a cloth will remove most small rust spots, and that steel wool or 220-grit sandpaper can be used if the rusted surface is rough.

Field Company’s rust steps run like this:

Scrub the surface rust under cold water with a stiff brush.
Scuff with a chain mail scrubber.
Towel dry.
Heat on the stovetop for three to five minutes to evaporate moisture.
Lightly coat with seasoning oil.
Re-season in the oven with one or two coats.

For more, see my write-up on how to fix rusty cast iron and what the makers say.

Do not over-season

More baking is not always better. Field Company’s care team says that oven-seasoning a pan too often creates a brittle layer that does not adhere well and is more prone to flaking. It recommends oven seasoning only for rehabilitating a pan that has been stripped or had rust, and prefers building thin layers through regular cooking.

That fits the other sources: the extension services suggest three or four rounds as a starting point, not a monthly routine. After that, cooking does the work.

Keeping the seasoning once you have it

The N.C. Cooperative Extension says the easiest cleaning method is water and a towel as soon as the pan is cool enough to handle. It advises against soap, saying it will remove the seasoning, and against anything too abrasive such as steel wool. Its most important rule is to never leave water in or on cast iron, or leave it in a wet sink.

Note that makers differ here. KitchenAid says not to soak the pan and to dry it completely, and says oil is not necessary after washing the inside. Lodge’s own foundry-seasoned pans are designed to be used regularly, and Lodge says on its care page that the best way to maintain seasoning is to use it. The shared ground: dry it right away, do not soak it, and cook in it often.

My take on seasoning

Most seasoning problems come from doing too much, not too little. Readers write about sticky pans and flaking surfaces, and when I trace those back through maker guidance, the pattern is thick oil and stacked layers.

I do not own or test any of the pans I write about. What I do is read the manufacturer instructions, extension service guidance, and owner complaints side by side, and look for where they agree. On seasoning they agree on more than the internet suggests: neutral oil, thin coat, upside down, an hour in the oven, then cook.

Where they disagree, on oven temperature and on flaxseed, I show you the numbers and who said them so you can choose. A new pre-seasoned skillet is a good place to start, because you can skip the oven entirely and let ordinary cooking build the finish. If you buy a pan that needs a full seasoning, one careful round and a few weeks of cooking beat ten rushed rounds.

Glenn

Find the right pan

If you are still deciding between pans, I compare cast iron against other materials in cast iron vs stainless steel and carbon steel vs cast iron, using specs, pricing, and owner-reported complaints. If a reviewed pick is not what you need, the full cookware reviews and buying guides cover the rest.

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FAQ

How often should I season my cast iron pan?

The makers do not give one schedule. Extension services suggest three or four oven rounds when starting with a bare pan. Field Company says oven seasoning should be reserved for stripped or rusty pans, with regular cooking maintaining the finish.

Can I season cast iron with olive oil or butter?

The sources I reviewed name vegetable oil, canola, shortening, or grapeseed as their choices, and none recommend butter. Lodge also advises against tallow, lard, and ghee for seasoning because they can go rancid. Stick to a neutral, high smoke point oil for the oven bake.

Why is my seasoned pan sticky?

A sticky finish usually means the oil coat was too thick before baking. Wipe the pan until it looks nearly dry before it goes in the oven. You can bake it again at the same temperature to harden the tacky layer, then use it regularly.

Do I need to reseason after every wash?

No. The N.C. Cooperative Extension recommends washing with water and a towel, then drying right away. KitchenAid says oil is not necessary after washing the inside to maintain its pre-seasoned pans. Reseason only after rust or if the finish has been stripped.

Sources

I'm Glenn, and I started Kitchenware Compare to cut through conflicting product reviews and help readers pick kitchen gear with confidence. I don't own or test the products I write about — these guides are built from verified-purchase reviews, manufacturer specifications, and independent testing where it exists, with the reasoning shown, not just a rating.