PFAS in Pressure Cookers, Which Brands Grade Best and Worst

Pressure cookers sit at the intersection of two PFAS risk factors, nonstick coatings on inner pots and heat-sealed gaskets that sometimes rely on fluoropolymer chemistry. Based on available materials and public disclosure data, several Cuisinart, Presto, and T-fal stainless-steel models earn an Excellent grade in our database, while a cluster of Instant Pot and Presto electric multicookers with nonstick-coated inserts score Bad. The clearest lower-concern option in this category is the Instant Pot Instant Pot Mini Chef Series 4QT Multi-Cooker, which carries an Excellent grade (75/100) in our model, alongside a tie of stainless-steel competitors from Cuisinart, Presto, and T-fal.

This is a model-based estimate built from materials disclosure and public data, not an independent lab certification. No single brand sweeps every category, Presto and Instant Pot each appear on both the best and worst sides of our list, which means the material of a specific model, not the brand name alone, drives the grade. Below, we break down every pressure cooker in our database, what it's made of, what the brand claims, and where the honest trade-offs lie.

Summary comparison table

Product	PFAS grade (model estimate)	Verdict
Instant Pot Mini Chef Series 4QT Multi-Cooker	Excellent (75/100)	Lower concern, compact electric option
Cuisinart CPC-900 6-Quart High Pressure Multicooker, 15psi	Excellent (75/100)	Lower concern, stainless interior
Cuisinart CPC-600 6 Qt Electric Pressure Cooker	Excellent (75/100)	Lower concern, stainless interior
Cuisinart CPC-900 6 Quart High Pressure Multicooker	Excellent (75/100)	Lower concern, stainless interior
Presto 23 Quart Induction Pressure Canner	Excellent (75/100)	Lower concern, large-batch canning
Presto Cookware 6 Qt. S/S Pressure Cooker	Excellent (75/100)	Lower concern, stovetop stainless
Presto Pressure Cooker and Canner 01755	Excellent (75/100)	Lower concern, dual-use canner
T-fal 6qt Stainless Steel Pressure Cooker with Straining Basket	Excellent (75/100)	Lower concern, added straining basket
T-fal Secure Trendy Stainless Steel Pressure Cooker	Excellent (75/100)	Lower concern, budget stovetop pick
Presto 8 Qt. Aluminum Pressure Cooker	Good (65/100)	Moderate concern, aluminum body
T-fal Secure Aluminum Pressure Cooker	Good (65/100)	Moderate concern, aluminum body
Instant Pot Duo Plus Pressure Cooker	Bad (15/100)	Higher concern, nonstick insert
Presto Electric Pressure Cooker 6Qt	Bad (15/100)	Higher concern, nonstick insert
Presto 6-Quart Programmable Electric Pressure Cooker Plus	Bad (15/100)	Higher concern, nonstick insert
Presto 06003 Multicooker Steamer	Bad (15/100)	Higher concern, nonstick insert

Why pressure cooker material matters for PFAS

Pressure cookers fall into roughly three material camps, uncoated stainless steel inner pots, aluminum inner pots (sometimes anodized or coated), and nonstick-coated inserts that use PTFE or similar fluoropolymer chemistry to prevent sticking. Based on available materials and public data, stainless steel inner pots consistently score Excellent in our model because they don't require a fluoropolymer nonstick layer to function. Nonstick-coated electric multicooker inserts, by contrast, tend to score much lower, since the coating itself is the point of concern, and gasket or sealing-ring composition can add further uncertainty when it isn't disclosed. This mirrors patterns we see across other kitchenware categories, including our cast iron skillets guide and our bundt pans roundup, where uncoated metal cookware tends to outperform coated alternatives in model-based scoring.

Excellent-graded pressure cookers, stainless steel leads the pack

Instant Pot Instant Pot Mini Chef Series 4QT Multi-Cooker

This compact electric multicooker earns an Excellent grade (75/100) in our model, our top-estimated option in the category. Instant Pot states the Mini Chef Series uses a stainless steel cooking pot, a common feature across its higher-graded lineup. That brand claim is distinct from independent lab verification, and no third-party lab test results appear in our reviewed sources, so we describe this as lower concern rather than confirmed PFAS-free.

Pros, Compact 4-quart size fits small kitchens, stainless interior avoids nonstick coating chemistry, multiple cooking functions in one unit.

Cons, Smaller capacity limits batch cooking, gasket and seal materials aren't fully itemized in public disclosures, electric components still require routine seal replacement over time.

Cuisinart CPC-900 and CPC-600 electric pressure cookers

Three Cuisinart models, the CPC-900 6-Quart High Pressure Multicooker (15psi), the CPC-600 6 Qt Electric Pressure Cooker, and a second CPC-900 6 Quart High Pressure Multicooker listing, all land at Excellent (75/100). Cuisinart markets these units around stainless steel cooking pots and multi-function electric control panels. As with all entries here, this reflects brand-stated materials rather than an independent lab certificate.

Pros, Consistent stainless interior across the CPC line, 6-quart capacity suits family cooking, multiple pressure and sauté functions.

Cons, Electric units carry more plastic housing and gasket components than stovetop models, Cuisinart's own materials disclosures are limited to marketing copy rather than full ingredient-level documentation, repeated high-heat cycles can degrade seals over years of use.

Presto's stainless and induction-friendly models

Presto shows up across the Excellent tier with three distinct products, the 23 Quart Induction Pressure Canner, the Cookware 6 Qt. S/S Pressure Cooker, and the Pressure Cooker and Canner 01755. All three share stovetop, stainless-bodied designs rather than electric nonstick inserts. Presto's own marketing emphasizes stainless steel build quality and canning versatility, but does not include third-party fluorochemical testing data in sources we reviewed.

Pros, Large-capacity canner suits home preserving, stovetop operation means no electronic gasket assembly, stainless construction is straightforward to inspect and clean.

Cons, No induction base on some models limits stovetop compatibility, manual pressure release requires more hands-on attention, sizing (up to 23 quarts) may be excessive for small households.

T-fal's stainless steel stovetop cookers

Two T-fal stovetop models earn Excellent grades, the 6qt Stainless Steel Pressure Cooker with Straining Basket and the Secure Trendy Stainless Steel Pressure Cooker. T-fal states both use stainless steel pots, a departure from the brand's nonstick pan reputation elsewhere in its catalog. This is a brand claim, not an independently verified lab result in the sources we reviewed.

Pros, Added straining basket on one model increases versatility, stainless interior aligns with lower-concern material profile, budget-friendly stovetop pricing.

Cons, Manual stovetop operation lacks programmable presets, gasket replacement parts may be harder to source long-term, T-fal's broader cookware lineup still includes nonstick products that score differently.

Good-graded models, aluminum brings moderate concern

Two aluminum-bodied pressure cookers land in the middle tier at Good (65/100), the Presto 8 Qt. Aluminum Pressure Cooker and the T-fal Secure Aluminum Pressure Cooker. Aluminum itself isn't a fluoropolymer, but aluminum pots are sometimes paired with anodized or coated surfaces, and the manufacturing disclosures available to us are less complete than for the stainless-steel Excellent tier. Based on available materials and public data, this places both products in a moderate-concern middle ground rather than the lower-concern tier reserved for fully disclosed stainless designs.

Pros (both models), Lighter weight than stainless equivalents, generally lower price point, large 8-quart capacity on the Presto model.

Cons (both models), Less complete public material disclosure than stainless competitors, aluminum surfaces may wear or react with acidic foods over time, neither brand provides third-party lab verification in sources we reviewed.

Bad-graded models, nonstick inserts drive the lowest scores

Four products score Bad (15/100) in our model, and all four share a common thread, nonstick-coated electric inserts. The Instant Pot Duo Plus Pressure Cooker, the Presto Electric Pressure Cooker 6Qt, the Presto 6-Quart Programmable Electric Pressure Cooker Plus, and the Presto 06003 Multicooker Steamer all use nonstick-coated cooking pots rather than bare stainless steel.

It's worth noting that Instant Pot's own Duo Plus sits at the opposite end of the grading scale from the brand's Mini Chef Series, underscoring that the nonstick coating, not the Instant Pot name itself, is the driver here. The same pattern holds for Presto, which appears in both the Excellent and Bad tiers depending on whether a given model uses stainless steel or a nonstick insert.

Pros (as a group), Nonstick surfaces ease cleanup and food release, programmable electric functions add convenience, typically more affordable than premium stainless electric units.

Cons (as a group), Nonstick coatings are the central PFAS concern driving the Bad grade, coating wear over time can increase flaking and potential exposure, none of the four list third-party lab verification confirming coating composition in sources we reviewed.

Any association between nonstick cookware coatings and PFAS exposure reflects a materials and chemistry concern, not a confirmed causal health outcome; broader health research on PFAS exposure pathways continues to evolve, and association in available literature is not the same as proven causation for any individual product.

What to avoid

• Electric multicooker inserts described only as "nonstick" without naming the coating chemistry or confirming it is PTFE-free through a disclosed, verifiable source.
• Gaskets and sealing rings with no listed material composition, since silicone and fluoroelastomer seals are easy to confuse without documentation.
• Marketing language like "PFAS-free" that isn't paired with a cited third-party lab test; treat it as a brand claim until verified.
• Aluminum inner pots with unclear anodizing or coating details, which our model treats as moderate concern rather than lower concern.
• Scratched or worn nonstick inserts in older pressure cookers, where coating degradation is a reasonable materials concern regardless of original grade.

For broader kitchen shopping, our non-stick knife sets guide and cast iron skillets guide apply similar material-first screening logic.

Our pick

Based on available materials and public disclosure data, the stainless-steel cluster of Excellent-graded pressure cookers represents the lower-concern end of this category, the Instant Pot Mini Chef Series 4QT Multi-Cooker for compact electric use, the Cuisinart CPC-900 6-Quart High Pressure Multicooker for a larger family-sized electric option, and the T-fal 6qt Stainless Steel Pressure Cooker with Straining Basket for stovetop cooks who prefer manual control. None of these carry independent lab certification in the sources we reviewed, so this is a model-based estimate rather than a lab-confirmed guarantee. If budget allows and you cook in large batches, the Presto 23 Quart Induction Pressure Canner is worth a look for home canning specifically. Shoppers who want to compare these against pressure cookers not yet graded, or check a specific model number, can run a search through our product finder.

Frequently asked questions

Does a stainless steel pressure cooker guarantee no PFAS exposure?

No. A stainless steel inner pot removes the need for a nonstick fluoropolymer coating, which is why these models score Excellent in our model-based estimates. However, gaskets, sealing rings, and electronic components can still contain undisclosed materials, and no product in this guide has third-party lab verification confirming zero PFAS across every component. We describe these as lower concern, not PFAS-free.

Why does the same brand appear in both the best and worst tiers?

Both Instant Pot and Presto have products at opposite ends of our grading scale. This happens because the grade tracks the specific materials used in each model, primarily whether the inner pot is bare stainless steel or nonstick-coated, rather than a blanket brand policy. Always check the specific model, not just the manufacturer name.

Is nonstick pressure cooker coating proven to cause health problems?

Research on PFAS and fluoropolymer coatings has identified associations with certain health outcomes in population-level studies, but association is not the same as proven causation for any individual product or exposure scenario. Based on available materials and data, our grading reflects estimated materials-based concern, not a clinical health determination. If you have specific health questions, consult a medical professional and consider reviewing whole-house filtration options, such as those covered in our whole-house filters guide, as one part of a broader exposure-reduction approach.