Is Swiss Diamond third-party tested?

Last reviewed July 2026.

The public record disagrees with the marketing. Details and citations below — worded as exactly what each record is.

Every claim, and where the proof stands

HD diamond-reinforced nonstick

Consumer Reports (2022-10-26) tested a Swiss Diamond pan sold with a PFOA-free claim and detected 16 of the 96 PFAS it looked for — including PFOA itself, at an average of ~4 ppb in the coating, with total measured PFAS of 639–703 ppb across samples. An independent, published lab result directly contradicting the on-box claim is exactly what this column is for.

Public record: Consumer Reports, "You Can't Always Trust Claims on 'Non-Toxic' Cookware", 2022-10-26 (source). CR is independent of both brands and this site.

How to read this

“PFOA-free” is true of virtually every pan sold today and is not the same claim as “PFAS-free” — PTFE itself is a PFAS. If a coating’s chemistry matters to you, the questions that cut through are: what is the coating, and who published the test? Our PFOA vs PFAS guide covers the first; the main table tracks the second for every brand here.

See where Swiss Diamond sits against every brand we track →

We do not test cookware — we index published third-party lab results and public legal records, with attribution, and make no health claims. A verdict describes the state of the published evidence for specific marketing claims, not whether a pan is safe or dangerous. An allegation is not a finding; a settlement is not an admission; a lab report speaks only for the samples tested. If a brand publishes new evidence, the page changes — the source always wins.