Siemens Review, Is Siemens Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 3 graded products, Siemens averages Bad (22/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade Good or better yet. Grades are model-based estimates, not lab results.
Graded and flagged Poor and Bad, we’d swap these
Siemens
Countertop Combi Oven with Air Fry & Steam
Stainless steel cavity, heating elements, steam/air circulation
Steam circuit bacterial growth
Combi ovens with unmaintained steam generators can harbor Legionella or other pathogens…
Formaldehyde / VOCs
Silicone or rubber door seals and internal foam insulation may release minor VOCs during…
Mineral deposit accumulation in heating circuit
Hard water mineral buildup in the steam generation circuit can reduce efficiency and…
Lower risk. Combi ovens rarely use PFAS-prone coatings.
⚠Risky category by default
Siemens
Simenmax Air Fryer 6-Quart with Viewing Window and 12-in-1 Functions
Basket/tray coating unspecified; likely nonstick polymer
Teflon-type coating fume risk (temperature-dependent)
If the unspecified nonstick coating is Teflon-type coating-based, heating above 500F can…
Coating degradation and microparticle shedding
Nonstick coatings degrade with use, especially under mechanical stress (scrubbing) or…
Material transparency and regulatory compliance
Siemens' silence on nonstick type and PFAS status is consistent with industry-wide lack…
Disclosure insufficient; nonstick type and PFAS status remain unknown.
⚠Nonstick, coating undisclosed
Siemens
12.5 Quart Air Fryer
heating element, basket, and internal surfaces, coating unspecified
Teflon-type coating fume inhalation (thermal decomposition)
If the internal coating is Teflon-type coating-based (common in air fryers), heating…
Coating degradation and particle ingestion
Without specification of coating durability or material, users cannot assess whether…
Non-stick coating off-gassing at normal operating temperatures
While Teflon-type coating fume syndrome requires extreme temperatures (600°F+), some…
Internal coating unknown; Siemens offers no PFAS disclosure.
⚠Nonstick, coating undisclosed
Every grade uses the same public rubric. How grades work →