25Poor

Lamb Weston Review, Is Lamb Weston Non-Toxic?

The verdict
Lamb Weston averages 25 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Lamb Weston products graded as of October 2026, and none of them reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/lamb-weston.

Lamb Weston grades Poor on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.

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.

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  • polypropylene filter housing, carbon/sediment cartridge
  • We found no PFAS statement from the brand
  • Bacterial growth in spent cartridges

3 hazards checked on this product, all on its full breakdown.

  • RO membrane, carbon filters, stainless steel housing
  • We found no PFAS statement from the brand
  • Bacterial and microbial growth in housing and filters

4 hazards checked on this product, all on its full breakdown.

Avocado Vegan Mattress

Avocado

Vegan Mattress

100ExcellentPFAS grade
✓ MADE SAFE Certified✓ Global Organic Textile Standard (GOTS)
  • organic cotton, natural latex, coconut coir, recycled steel coils
  • The brand calls it PFAS-free, which we have not verified
  • Heavy metals

2 hazards checked on this product, all on its full breakdown.

Which Lamb Weston products contain PFAS? Poor and Bad, we’d swap these

Lamb Weston Colossal Crisp French Fries

Lamb Weston

Colossal Crisp French Fries

25PoorPFAS grade
  • Paper/cardboard box with grease-resistant coating
  • We found no PFAS statement from the brand
  • PFAS. Lamb Weston has not disclosed whether the box interior uses fluorinated (PFAS-containing) or…

2 hazards checked on this product, all on its full breakdown.

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Lamb Weston Hand Cut Style Fries

Lamb Weston

Hand Cut Style Fries

25PoorPFAS grade
  • paper/cardboard packaging with grease-resistant coating
  • We found no PFAS statement from the brand
  • PFAS. Lamb Weston has not disclosed coating chemistry. Alternatives to legacy PFAS (such as short-chain…

4 hazards checked on this product, all on its full breakdown.

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Lamb Weston Super Crispy Shoestring Fries

Lamb Weston

Super Crispy Shoestring Fries

25PoorPFAS grade
  • paper/cardboard packaging with suspected grease-resistant coating
  • We found no PFAS statement from the brand
  • Acrylamide (cooking byproduct). High-temperature frying produces acrylamide, a probable carcinogen. This is…

4 hazards checked on this product, all on its full breakdown.

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Lamb Weston and PFAS, common questions

Does Lamb Weston have PFAS?
Lamb Weston averages 25 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Lamb Weston products graded as of October 2026, and none of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Lamb Weston non-toxic?
No Lamb Weston product we graded reaches Good. The best of them is Lamb Weston Colossal Crisp French Fries at 25/100.
Which Lamb Weston products should I avoid?
The lowest-graded Lamb Weston products we have scored are Lamb Weston Super Crispy Shoestring Fries, Lamb Weston Hand Cut Style Fries, Lamb Weston Colossal Crisp French Fries. Each one links to the evidence behind its grade.

Every grade uses the same public rubric. How grades work →