Restaurantware Bento Tek 29 oz Blue and Yellow Lunch Box BPA-Free, Microwave-Safe Fork and Spoon
Low PFAS risk, but brand discloses nothing about coatings or materials.
Bento Tek makes no PFAS claims or material disclosures for this lunch box. Plastic food containers sometimes contain PFAS in grease-resistant coatings; without specification, risk is unclear but modest for typical use.
We flunk more products than we pass. This one earned its grade. How we grade
Material
plastic lunch box, stainless steel utensils
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Restaurantware Bento Tek 29 oz Blue is made of, ingredients and materials
This product is a plastic lunch box (material type not publicly specified by Bento Tek, but likely polypropylene or copolyester given microwave-safe claims and price point) paired with stainless steel fork and spoon. The manufacturer has removed BPA from the plastic formulation, which eliminates the primary endocrine-disruption concern for rigid food containers. Stainless steel utensils are non-leaching and inert across normal use temperatures. The microwave-safe designation suggests the plastic can withstand moderate heat without deformation, but this does not imply the container is coated with fluorinated anti-grease treatments.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Microplastics
Microwave-safe plastics are engineered to limit degradation at moderate temperatures, but repeated heating cycles or prolonged contact with hot foods may stress the polymer over years. Risk is lower when the container is used for cold or room-temperature storage as intended.
Source, EPA ↗What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
BPA & bisphenols
Product is marketed BPA-free. No public records indicate presence of BPA, BPS, or other bisphenol substitutes in Bento Tek formulations, though the company has not published independent third-party verification of this claim.
Source, FDA ↗Phthalates
Rigid plastic food containers like this lunch box are not typically formulated with phthalate plasticizers; they use polypropylene or copolyester. No recalls or reports link this product to phthalate contamination.
Source, ATSDR ↗Fluorinated coatings (PFOA, Teflon-type coating-based grease resistance) on interior or exterior
Bento Tek has disclosed no fluorinated or anti-grease treatments on this lunch box. The low price point and lack of marketing around water-repellent or stain-resistant properties suggest no such coating is present, but the brand has not ruled this out in writing.
Stainless steel utensil corrosion or nickel leaching
Food-grade stainless steel (typically 304 or 316) is extremely resistant to corrosion and does not leach nickel into food under normal storage conditions. No reports link Bento Tek's utensils to corrosion or allergy concerns.
The full breakdown
The brand's record and disclosure
Bento Tek maintains a silent stance on PFAS and coating details; the company has published no independent safety reports, third-party certifications (such as FDA food-contact clearance specifics), or material safety data sheets publicly available. The BPA-free claim is transparent marketing in response to regulatory concern, but does not indicate broader chemical disclosure or testing beyond that baseline. No recalls or safety controversies have been established for this specific product in public records. This brand occupies the mid-market food-container space with minimal transparency compared to premium alternatives that voluntarily publish material sourcing.
How it compares in its category
Plastic lunch boxes dominate low-cost food storage; Bento Tek's offering is typical in removing BPA but offering no fluorination or flame-retardant disclosures. Glass or stainless steel lunch boxes present lower chemical leaching risk overall but cost significantly more. Many competitors (e.g., Rubbermaid, Sistema) similarly claim BPA-free status without deeper transparency. Bento Tek's inclusion of metal utensils rather than plastic forks removes phthalate and secondary plastic-degradation risk from utensil heating.
If you buy it
Store cold or room-temperature foods only; do not use the plastic container for hot liquids straight from a heat source, as microwave-safe does not mean it tolerates boiling water or steam without potential deformation or polymer chain stress. Inspect the lunch box annually for cracks, discoloration, or warping, which indicate breakdown and replacement need. Wash by hand or in the dishwasher (check product instructions for specific guidance). Keep stainless steel utensils dry to prevent corrosion at joints; they require no special care. Replace the container if it becomes cloudy, brittle, or develops persistent odor, as these signal aging of the plastic.
What we don’t know
- Basis
- Model estimate, 55% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Bento Tek has made none
Formulations change between production runs, so check the current label. How we grade.
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More lunch boxes 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.