Best cookware for a nickel allergy

This is one of the most common questions we get, and it usually arrives from someone who has already read a lot of confident, contradictory advice online. So let's be careful about what we can and can't tell you.

We are a cookware company, not a medical one. We can't tell you what your body will do. What we can do is tell you which cooking materials contain nickel as part of their composition, what published research has measured about how much of it ends up in food, and where the honest uncertainty sits. Then you can take that to someone qualified to advise you.

Where nickel comes from in a kitchen

Nickel isn't a contaminant in cookware. It's an ingredient, added on purpose.

In stainless steel, nickel is an alloying element that improves corrosion resistance and gives the steel its austenitic structure — the non-magnetic, formable, easy-to-polish quality that makes it good cookware in the first place. Grade 304, sold in kitchens as 18/10, is roughly 18% chromium and 8–10.5% nickel. That number on the box isn't marketing shorthand; it's the recipe.

Not all stainless steel is the same, though. Grade 430, marketed as 18/0, is ferritic and specified with essentially no nickel. It's magnetic, cheaper, and noticeably less corrosion-resistant, which is why you find it in budget flatware and pan bases far more often than in the cooking surface of a good pan. "Stainless steel" is a family, not a material, and the family members differ enormously on this specific question.

Does the nickel actually get into the food?

Some of it does. This has been measured properly.

A study published in the Journal of Agricultural and Food Chemistry in 2013 simmered tomato sauce in stainless steel and tracked what came out of the pan. After six hours, nickel in the sauce had risen up to 26-fold depending on the grade of steel; over longer cooking times the increase reached 34-fold. Leaching fell as pans were used repeatedly and levelled off after around the sixth cooking cycle — but it did not stop. By the tenth cycle the researchers were still measuring an average of about 88 micrograms of nickel per 126g serving.

Two things need saying about that, or we'd be quoting it dishonestly. It was a deliberately harsh test: hours of simmering acidic sauce, which is close to the worst case rather than a normal weeknight. And for most people, those quantities sit inside accepted intake levels. The European Food Safety Authority's 2020 review set a tolerable daily intake for nickel of 13 micrograms per kilogram of body weight, which works out to roughly 900 micrograms a day for a 70kg adult. Against that, 88 micrograms from a portion of sauce is real but modest.

Why the sensitised case is treated differently

The reason nickel gets its own conversation is that it is the single most common contact allergen there is. A systematic review and meta-analysis of general-population patch testing — 28 studies, more than 20,000 people — found nickel sensitisation in around 11.4%, rising to about 28% in women.

Regulators treat that group separately. EFSA's assessment of short-term oral exposure used a much lower reference point than the general tolerable intake, and the Council of Europe's guidance on metals in food contact materials sets a specific release limit for nickel of 0.14 mg per kg of food, stated explicitly as a threshold intended to protect people who are already nickel-sensitive. In other words, the official position isn't that nickel release from metal is irrelevant. It's that the relevant amount depends on who is eating.

The part where the sources disagree

Here is where we'd rather show you the disagreement than pick the side that suits us.

Some clinical and dietetic guidance for people with nickel sensitivity advises against cooking acidic foods in stainless steel, and suggests other materials instead. The Nickel Institute's own guidance takes the opposite view, arguing that even well-worn stainless cookware shouldn't present a problem when it's cared for properly.

Both of those are real positions held by serious people. We're not going to pretend the evidence resolves cleanly in our favour, because it doesn't. What the research does support is narrower and less dramatic: how much nickel comes out of a pan depends on the grade of the steel, how acidic the food is, how long it cooks, and how new the pan is. Whether that matters for you is a question for a doctor, not for us.

The low-nickel options, with their real drawbacks

If you're building a kitchen around materials that don't have nickel in the composition, the realistic list is short, and each option costs you something.

Enamelled cast iron and glass put a fused, inert layer between food and metal. Excellent for slow, acidic cooking. Heavy, expensive, and the enamel chips — at which point you're back to bare iron.

Bare cast iron and carbon steel contain iron rather than nickel, and they sear beautifully. They're also heavy, reactive with acidic food, and need seasoning maintained. Research on cookware leaching consistently finds iron transfer rises sharply in acidic conditions.

Coated pans give you a nickel-free cooking surface, but the surface is a consumable. Every coating has a lifespan, and when it goes you're exposed to whatever is underneath it. We've written about that trade-off at length elsewhere.

Titanium is the option we build with, so treat this paragraph with appropriate suspicion. Grade 1 commercially pure titanium is specified under ASTM B265, which controls carbon, nitrogen, oxygen, iron and hydrogen. Nickel isn't among the specified elements — it isn't part of the alloy, because there is no alloy. Titanium also forms a passive oxide film the moment it meets air, a few nanometres thick, chemically inert, and self-repairing when scratched. That film is the reason titanium is so stable against acidic food. Full citations are on our Evidence page.

Clad matters more than material, if you're avoiding something

This is the point we'd make even if you bought someone else's pan.

If your reason for choosing a material is that you want to avoid what's underneath it, a plated or coated pan doesn't really solve your problem — it postpones it. A titanium film of around a tenth of a millimetre over a steel body is titanium today and a question mark in five years. Our pans are clad: the titanium is 0.4–0.6mm of solid metal bonded over an aluminium core, with a stainless base so they work on every cooktop. There is no layer to wear through, because the titanium is the surface rather than a finish on top of one.

Ask any brand for the construction in millimetres. If the answer is about the pattern, the "nano" layer, or the total thickness of the pan, you haven't been told.

What we're not claiming

We're not claiming our cookware treats, prevents or improves any condition. We're not claiming it will change your symptoms. We don't know, and any cookware brand that tells you otherwise is selling past the evidence.

What we're saying is narrower: titanium has no nickel in its composition, it's inert against acidic food, and there's no coating to wear through and expose something else. That's a material fact. What you do with it is between you and your doctor. If you've been advised to follow a low-nickel diet, that should be run under proper supervision — it's a clinical decision, not a shopping one.

The trade-off you're taking on

Titanium is not slick out of the box. It's naturally low-stick with proper technique, which means preheating the empty pan, adding oil and waiting for it to ripple, then dropping to medium-low before food goes in. Get the heat wrong and it will stick, as any bare metal will. It also marks — it's real metal, not a hardened coating, and those marks become patina rather than damage. Our Care Guide covers the routine in a minute, and the FAQ handles most of the rest.

If you're starting with one piece, the 28cm Signature Hammered Frying Pan is the one we'd point you to first. The Complete Kitchen is the full set, and the Titanium Cutting Board extends the same non-porous surface to prep.

The short version

Nickel in cookware comes overwhelmingly from austenitic stainless steel, where it's an intentional alloying element. Measurable amounts do transfer into acidic food, most heavily from new pans over long cooking times. For most people that's within accepted intake levels. For people who are nickel-sensitive, regulators use a far more cautious threshold — and the expert sources genuinely disagree about what that means in a real kitchen. Titanium sidesteps the question by not containing nickel at all, at the cost of asking you to learn a slightly different way of cooking.

That's the whole honest picture, including the parts that don't flatter us.

This article is material-science and food-safety information, not medical advice. If you have a metal sensitivity or allergy, please speak to a qualified healthcare professional.

Sources

Kamerud KL, Hobbie KA, Anderson KA. Stainless Steel Leaches Nickel and Chromium into Foods during Cooking. Journal of Agricultural and Food Chemistry, 2013.

EFSA Panel on Contaminants in the Food Chain. Update of the risk assessment of nickel in food and drinking water. EFSA Journal, 2020.

Alinaghi F, Bennike NH, Egeberg A, Thyssen JP, Johansen JD. Prevalence of contact allergy in the general population: A systematic review and meta-analysis. Contact Dermatitis, 2019.

European Directorate for the Quality of Medicines & HealthCare (EDQM), Council of Europe. Metals and alloys used in food contact materials and articles.

ASTM International. ASTM B265: Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate.

Nickel Institute. Human Health Fact Sheet 6: Low Nickel Diet.