PFAS score
Kyoku · Non-Stick Knife Sets
KYOKU Shogun Series Utility Knife
Lower concern, stainless steel utility knife with no nonstick coating or known PFAS-prone treatments.
KYOKU Shogun Series is a stainless steel utility knife with no nonstick coating, Teflon-family coating layer, or water-resistant treatments that would typically introduce PFAS. The brand makes no PFAS claims, but the material itself, high-carbon stainless steel, carries lower inherent PFAS risk than coated cookware.
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Material
High-carbon stainless steel blade
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Stain-resistant finish
Stain-resistant finishes are a common PFAS use.
Category baseline
cookware is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Non-Stick Knife Sets
GreenPan
Bobby Flay Knife Block Set
stainless steel knives and wooden block
Lower concern, stainless steel knives with wood are inherently PFAS-low, though no third-party verification exists.
⚠Risky category by default
GreenPan
Elite Cutlery Knife Block Set
stainless steel blades and handles
Lower-concern product, stainless steel knives are inherently PFAS-free; brand stance supports this.
⚠Risky category by default
OXO
Icing Knife Set
Stainless steel blades with polymer handles
Lower PFAS concern, icing knives are non-coated utensils with no water-repellent or non-stick treatment.
⚠Risky category by default
More non-stick knife sets grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.