Reviews by Room ➜ Kitchen ➜ One-Pot Cookers

Non Toxic One-Pot Cookers

Dr. Meg Christensen is the founder of Interior Medicine, a physician-created resource on non-toxic home products and household exposures. Her layer-by-layer analysis of materials and products draws on her background in medicine, biochemistry, epidemiology, and clinical research.

Updated May 2026

Non-toxic Dutch ovens, slow cookers, and pressure cookers. If you have questions about lead, ceramic, nickel, or non-stick coatings, the Material Health Guides and part 2 of my course will probably have your answer.

VitaClay

Made from pure Zisha clay, which comes from China and is commonly used as a non-toxic ceramic material in teapots, VitaClay has gone the extra distance and had third party testing done to ensure there is no lead or cadmium leaching from their products. The surface of their rice cookers, slow cookers, soup and bone broth cookers are all unglazed, but because Zisha is not porous, it still works very well. You can use code INTMED10 for 10% off.

Magnifique

Made of 100% kaolin clay, and glazed with the same 100% kaolin clay so it’s smooth and shiny, Magnifique makes a really cute slow cooker. They’ve done lead, cadmium, and PFAS testing through a third party, and pass on all counts, which they promptly emailed me certificates for. A great non-toxic option if you have a nickel allergy and need to avoid stainless steel, and if you’re being cautious about enamel or “ceramic” non stick coatings. Read more about coatings here or click the symbols below.

360 Cookware

360 Cookware uses 316 surgical grade stainless steel for their slow cooker, without any coatings. While it’s not necessarily healthier than other stainless steel, which is almost always safe, 316 is the most durable and corrosion-resistant type available. A cool design, this comes as a pot and separate slow cooker base. This is a great choice for most people, unless you have a nickel allergy.

Staub

Enameled cast iron offers a more classic non-stick finish, and Staub’s is a healthy choice because they meet EU and Prop 65 standards— and reassured me that they use traditional sand and pigment -based enamel (no PFAS, nanomaterials, lead, or cadmium.) I consider leach-tested enamel to be second-healthiest after oil, because it’s made from sand and mineral pigments — as opposed to say, “ceramic” non stick coatings, which are actually polymer-based and proprietary.

GreenPan

Of the non-stick “ceramic” slow cookers available, GreenPan is the best option from a material health standpoint because they are the most transparent and thoroughly-tested. While no company fully discloses their ceramic non stick coating ingredients, and they’re all imperfect, GreenPan is definitely free of nanomaterials including nanotitanium, and have always been free of all PFAS. The pot itself is made of cast aluminum (read more one why aluminum is generally OK in my Metal Guide) and their coating meets Prop 65 standards for lead and cadmium. While I think it’s better to simmer with completely known surfaces, this is a pretty good option if you require non stick. Comes in several colors.

Our Place

Definitely cute, Our Place’s slow cooker is also cast aluminum coated in ceramic non-stick. It’s PFAS free, and tested to Prop 65 standards to ensure no lead or cadmium leach. Their coating does contain nanomaterials, so there is some inherent risk until we learn more about nanomaterials and whether or not they’re an issue for cooking with. Not as well tested as GreenPan, but better than average, compact, and relatively affordable. Comes in several colors.

Instant Pot

The Instant Pot really is as healthy an option for slow cooking and pressure cooking as its rumored to be, as long as you don’t have a nickel allergy. For what it’s worth, I am sensitive to nickel, and cooking in the Instant Pot hasn’t bothered me at all. Made of stainless steel, without coatings. FYI: I would avoid buying their separate PTFE and PFOA free ceramic non-stick insert. These are 2 of thousands of PFAS and this wording is usually a slick way of sounding healthy— they do not declare that it is entirely PFAS free, which would cover all the kinds of PFAS. If you do have a nickel allergy, I recommend one of the options above for slow cooking and will continue to keep my eye out for nickel-free pressure cookers.

Lodge Dutch Oven

Perhaps the most boring thing about me is that I use this unenameled cast iron dutch oven from Lodge all the time. I even have the campfire version of it for when I go on camping trips. It’s just plain old cast iron, without coatings, and I’ve seasoned it so thoroughly, I’ll even use it to make chili and spaghetti sauce, and re-season afterwards if needed. It’s heavy! It’s not cute! But it’s healthy, it’s affordable, and it will last forever. Fun fact: heating oil on cast iron actually causes a reaction that turns it into a polymer, or a chain, of molecules, which is what makes the surface “seasoned,” or naturally non-stick! If slow cooking in a dutch oven is also your style, see more brands I recommend on the Pots and Pans page.

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FYI ➜ “Non-toxic” doesn’t have a definition, and I use the words chemical-free, toxin, and toxic on Interior Medicine inaccurately. I do this for practical purposes, for now: they’re accessible terms that allow people to find what they’re looking for, and they’re shorthand for a complicated problem. I made an entire (free!) course about this. Check it out here.