Seasoning is essential for cast iron and carbon steel frying pans, which have no natural non-stick properties and rust without protection. A stainless steel pan does not need seasoning, and no independent source says an uncoated titanium pan does: for both, proper preheating with a little fat matters far more.
Key points
- Carbon steel and bare cast iron: seasoning is essential, for easier release and rust protection.
- Stainless steel: not needed; preheating and a little fat matter more.
- Uncoated titanium: no independent source recommends it, so follow the manufacturer's instructions.
- Re-season when rust appears, the seasoning is damaged or food starts sticking noticeably.
This guide explains what seasoning actually does, how to season a pan step by step for each material, how to look after it and when to start again. If food is already sticking, start with our guide on why food sticks to a pan.
What does seasoning a pan actually do?
Seasoning means heating a very thin layer of oil until it polymerises. Which? describes how the oil turns into a hard, plastic-like layer bonded to the metal, and Lodge, the American cast iron maker, calls seasoning simply oil baked onto the pan.
That layer does two jobs:
- Easier release: according to Which?, it gives a cast iron pan good non-stick properties.
- Rust protection: it creates a barrier that keeps water and air away from the iron.
Which pans need seasoning?
| Material | Season it? | Why |
|---|---|---|
| Carbon steel | Yes, unless pre-seasoned | No natural non-stick layer, rusts without protection |
| Bare cast iron | Yes, unless pre-seasoned | Same reasons as carbon steel |
| Enamelled cast iron | Not required | The enamel already protects the iron |
| Stainless steel | No | Smooth, non-porous surface (Cristel) |
| Uncoated titanium | No reliable source recommends it | Protective oxide layer; preheating and fat matter more |
| Non-stick coated | No | The coating provides the release |
How to season a cast iron pan
Many cast iron pans are now sold pre-seasoned; Lodge ships all of its cookware that way, so a wash and a light oiling is enough to start. For bare cast iron, or to restore a damaged surface, Which? recommends the oven method:
- Wash the pan in warm soapy water and dry it thoroughly. Moisture prevents good seasoning.
- Oil it thinly: rub a very thin layer of neutral, high-smoke-point oil, such as vegetable or rapeseed, over the whole pan, handle included.
- Bake: place the pan upside down in the oven at 220–250 °C for one hour. A sheet of foil on the shelf below catches drips (Lodge).
- Cool: turn the oven off and leave the pan inside until completely cool.
- Repeat steps 2 to 4 one to three more times if you like. More layers build better seasoning.
How to season a carbon steel pan
Carbon steel pans often arrive with an anti-rust coating, so check the manufacturer's instructions first. French maker de Buyer publishes this hob method:
- Wash the pan in hot water with washing-up liquid, then dry it.
- Pour in about 1 mm of vegetable oil.
- Heat gradually, without going above three-quarters of the hob's power.
- Turn off the heat as soon as the oil starts to smoke. Switch on the extractor fan or open a window.
- Let the pan cool, then pour away the oil.
- Wipe with kitchen paper and heat the empty pan for two more minutes.
Do not expect a black pan after one session. De Buyer explains that seasoning develops with use, and the darker the pan becomes, the less food sticks.
Which oil is best for seasoning?
Use a neutral oil with a high smoke point: Which? suggests vegetable or rapeseed oil, and Lodge also mentions vegetable shortening. The amount matters more than the brand. Lodge advises a layer so thin that nothing runs or drips when you tilt the pan; wipe off any excess.
How to season a stainless steel pan (and whether you should)
You do not need to. Cristel, a French stainless steel cookware maker, states that seasoning is unnecessary because stainless steel has a smooth, non-porous surface. You will find plenty of videos showing it, but what really stops food sticking is heat control. Which? recommends this routine instead:
- Wash a new pan in warm soapy water and dry it straight away to avoid water spots.
- Heat the empty pan for a minute or two.
- Do the water droplet test: if a drop beads up and glides across the surface, the pan is ready.
- Add oil or butter: stainless steel has no natural non-stick coating, so fat does that job.
- If food sticks, do not force it. It usually releases on its own when it is ready to turn.
Does a titanium pan need to be seasoned?
We looked for an independent answer and did not find one: no consumer organisation, testing body or published study covers seasoning uncoated titanium. The advice online comes from titanium cookware sellers and is inconsistent, with some suggesting a light first seasoning and others none.
Two things are established:
- Titanium is protected by a tightly bonded oxide layer. The Council of Europe guide (EDQM, 2024) describes it as practically inert, so the rust-protection role of seasoning does not apply as it does for iron.
- Titanium conducts heat about as well as stainless steel. As with stainless steel, patient preheating and a little fat matter more than seasoning.
Follow your manufacturer's instructions. For the Untitan pan: titanium cooking surface, uncoated, PFAS-free, no seasoning is required: wash it before first use, preheat over a medium heat and add a little fat. The hammered surface, well preheated with a little fat, makes food easier to release. Everyday cleaning is covered in our titanium pan care guide.
How to look after seasoning
- Cook with it often: every time you cook with oil or fat, you add another layer (Lodge).
- Wash gently: Lodge allows warm soapy water for carbon steel; de Buyer advises against harsh detergents and abrasive sponges.
- No dishwasher, no soaking: both strip seasoning and are likely to cause rust (Lodge).
- Dry and oil: dry completely, then wipe on a thin layer of oil after every wash (Lodge, Which?).
When to re-season a pan
- Rust spots appear.
- The seasoning has been damaged, for example by the dishwasher or heavy scrubbing.
- Food starts sticking noticeably more than before.
For rust, Which? suggests scrubbing it off with an abrasive scourer and drying the pan fully over a low flame before seasoning it again.
Frequently asked questions
Do you need to season a stainless steel pan?
No. Stainless steel has a smooth, non-porous surface. Preheat it properly, check with a drop of water and use a little fat.
Does a titanium pan need to be seasoned?
No independent source says so. Follow the manufacturer's instructions; preheating and a little fat matter more.
How often should you season a cast iron pan?
Once if it is bare, then only when rust appears or the surface is damaged. Regular cooking with fat maintains it.
Can you use olive oil to season a pan?
The makers cited here recommend neutral oils such as vegetable or rapeseed oil. Keep the layer very thin whichever oil you choose.
Sources
- Which?: How to buy the best cast iron pans
- Which?: How to buy the best stainless steel pans
- Lodge Cast Iron: How to Season
- Lodge Cast Iron: Cleaning & Care, Carbon Steel
- de Buyer: seasoning a carbon steel pan (in French)
- de Buyer: caring for a carbon steel pan (in French)
- Cristel: using a stainless steel pan (in French)
- EDQM / Council of Europe: Metals and alloys used in food contact materials and articles, 2nd edition, 2024