Carbon Steel Frying Pan Guide UK (2026): Best Pans and How to Season

What is a carbon steel frying pan?

Carbon steel is iron with a small amount of carbon (around 1%), pressed or spun into a thinner, lighter pan than cast iron. It has no factory coating. Instead, you build a natural non-stick layer called seasoning: thin films of oil heated until they bond to the metal. Professional kitchens use carbon steel because it handles fierce heat, lasts forever and gets better with use.

For anyone avoiding PTFE (polytetrafluoroethylene, the Teflon-type coating), carbon steel is the closest thing to non-stick without a coating. Consumer Reports notes that uncoated carbon steel and cast iron are unlikely to contain PFAS.

Why choose carbon steel instead of a non-stick pan?

Coated pans have two weak points. First, heat: PTFE coatings can break down at around 360°C, which an empty pan on a high flame can reach, and the fumes are linked to polymer fume fever (Greenberg and Vearrier, 2015). Second, wear: scratched coatings shed particles, with one lab study estimating thousands to millions of micro and nanoplastic fragments from a damaged PTFE pan during simulated cooking (Luo et al., 2022). PTFE is also a PFAS, the chemical family now under review by ECHA for an EU-wide restriction (ECHA) and covered by the UK government's 2026 PFAS Plan. Carbon steel avoids all three issues: it has no coating to overheat or scratch, it is happy at searing temperatures, and its non-stick layer can be rebuilt at home whenever it wears.

Our picks at a glance

How we chose

We picked pans with bare carbon steel or iron cooking surfaces sold by UK retailers or brand sites, with prices checked in October 2026. We compared thickness (thicker resists warping and holds heat), whether the pan arrives seasoned, handle design and induction compatibility. We included two cast iron pans because many readers weigh the two materials against each other. Evidence grades are "moderate": iron cookware is well studied, but none of these pans has published independent testing.

Carbon steel vs cast iron: which should you buy?

Our picks

Best overall: de Buyer Mineral B Carbon Steel Frying Pan 28cm

Thick French carbon steel with a beeswax coating that protects it from rust in the shop and helps the first seasoning. The curved "lyonnaise" shape lets food slide out easily. Caveat: it must be seasoned before first use, is heavier than most carbon steel pans, and the long steel handle gets hot.

Best under £20: de Buyer Blue Steel Frying Pan 24cm

A heat-treated, thinner carbon steel pan that heats quickly and costs £19.99 (the 28cm is about £28). A cheap way to find out whether you like carbon steel. Caveat: thinner steel can warp under very high heat or sudden cooling and suits gas hobs best.

Best British-made: Netherton Foundry Spun Iron Prospector Pan 12"

Spun from 99.1% pure iron in Shropshire, pre-seasoned with flax oil and fitted with two short handles so it fits in the oven and goes straight to the table. Caveat: the maker advises heating slowly at first on ceramic and induction hobs, and avoiding detergent.

Best pre-seasoned: Made In Seasoned Carbon Steel Frying Pan 25cm

Made in Sweden and seasoned at the factory, so it is ready to cook on day one, with a lifetime warranty. Caveat: factory seasoning is thin and still needs building up, and it costs more than de Buyer's thicker 28cm.

If you prefer cast iron: Lodge Original Cast Iron Skillet 26cm

Cheaper than any carbon steel pan here, pre-seasoned and practically indestructible. Caveat: heavy and slow to heat, and the rougher surface takes longer to become slick.

Premium cast iron alternative: Skeppshult Traditional Cast Iron Frying Pan 24cm

Smooth Swedish cast iron with a 5mm base and a beech handle that stays cool on the hob. Caveat: three times the price of Lodge, and the wooden handle limits oven use.

How do you season a carbon steel pan?

1. Remove or prepare any protective wax or oil exactly as the maker's instructions say.
2. Dry thoroughly and warm the pan on the hob.
3. Wipe on a very thin layer of high smoke point oil such as rapeseed or sunflower, then wipe off almost all of it.
4. Heat until it just starts to smoke, then let it cool. Repeat three to five times.
5. Cook something fatty, such as fried potatoes or bacon, for the first few uses.

Patchy brown or black colouring is normal and shows seasoning building. If food sticks, re-oil and heat. If rust appears, scrub it off, dry, and re-season.

What the evidence says

Iron transfer. Cooking in iron adds iron to food. In a classic study, 90% of 20 foods had significantly more iron when cooked in iron pans, and acidity, moisture and longer cooking increased the transfer (Brittin and Nossaman, 1986). A systematic review found some evidence that food cooked in iron pots raised haemoglobin in iron-deficient people. For most people this is harmless; if you have been told to limit iron intake (for example with haemochromatosis), ask your GP before cooking acidic dishes in bare iron.

No PTFE, no fumes from coatings. Carbon steel has no fluoropolymer coating, so it avoids the overheating problem that Germany's risk assessor BfR describes for PTFE above about 360°C. Seasoning will smoke if overheated, like any cooking oil, so ventilate as you would for searing.

Seasoning is cooked oil. It is the same browned layer that builds up on any well-used pan.

What to avoid

• Long simmering of acidic food (tomato, wine, vinegar). It strips seasoning and adds more iron. Use stainless steel or enamel for those dishes.
• Soaking or the dishwasher. Both lead to rust.
• Cold water on a hot pan. Thermal shock can warp thin carbon steel.
• Over-oiling when seasoning. Thick layers turn sticky; thin is better.

Bottom line

Carbon steel gives you a naturally slick, coating-free frying pan that lasts a lifetime. Start with the £19.99 de Buyer Blue Steel to see if you like it, or go straight to the de Buyer Mineral B 28cm (£62) as the best all-round choice. If you want British-made and oven-to-table, the Netherton Foundry Prospector is a lovely pan.