Lock & Lock averages 68 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Lock & Lock products graded as of October 2026, and 6 of them reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/lock-lock.
Lock & Lock grades Good 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.
Lock & Lock averages 68 out of 100 on PFAS Authority's PFAS and toxin screen across the 7 Lock & Lock products graded as of October 2026, and 6 of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Lock & Lock non-toxic?
LocknLock Stainless Steel Food Storage Containers with Lids, Metal Lunch Boxes, Leak-Proof, Microwave, Freezer and Dishw is the highest-graded Lock & Lock product we have scored, at 80/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
Which Lock & Lock products are lower concern for PFAS?
The highest-graded Lock & Lock products we have scored are LocknLock Stainless Steel Food Storage Containers with Lids, Metal Lunch Boxes, Leak-Proof, Microwave, Freezer and Dishw, LocknLock ToGo 2-Tier Stainless Lunch Box, 500ml + 800ml, Snap Lid, Silicone | Multicolor, Lock&Lock Insulated Lunch Box, Stainless Steel Lunch Box, Insulated Bowl For Baby Food, Lunch Box For Elementary School. That is our model-based estimate from materials and public disclosure, not a lab test.
Which Lock & Lock products should I avoid?
The lowest-graded Lock & Lock products we have scored are Lock & Lock Rectangular Lunch Box 3-Piece Set with Insulated Stripe Bag. Each one links to the evidence behind its grade.
![[Lock & Lock] Stainless Steel Thermal Dosirak](/img/10754/lock-lock-lock-lock-stainless-steel-thermal-dosirak)
