Monbento averages 70 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Monbento products graded as of October 2026, and all 4 reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/monbento.
Monbento 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.
Worth buying from Monbento Good or better, best-graded first
Monbento
MB Square Bento Box
70GoodPFAS grade
✓Polypropylene (PP) and stainless steel
⚠We found no PFAS statement from the brand
⚠Microplastics, Repeated dishwashing and thermal stress can cause micro-scale cracking and particle shedding…
Monbento averages 70 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Monbento products graded as of October 2026, and all 4 reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Monbento non-toxic?
Monbento MB Square Bento Box is the highest-graded Monbento product we have scored, at 70/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
Which Monbento products are lower concern for PFAS?
The highest-graded Monbento products we have scored are Monbento MB Square Bento Box, Monbento MB Original Bento Box, Monbento Tresor Bento Box. That is our model-based estimate from materials and public disclosure, not a lab test.
