S'well Eats Food Container
Lower concern food container, but brand transparency on PFAS limited.
S'well Eats uses stainless steel and glass, materials with lower inherent PFAS risk. Brand makes no public PFAS statement, so verification remains unclear.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Stainless steel and glass
Lab data
No public lab test
What S'well Eats Food Container is made of, ingredients and materials
S'well Eats combines 18/8 stainless steel (food-grade alloy with 18% chromium, 8% nickel) and borosilicate glass, both chemically inert food-contact materials. Stainless steel does not leach into food under normal storage and use; borosilicate glass resists thermal shock and does not release silica or other compounds into food at room temperature. The container avoids polymers, so there is no BPA, BPS, or phthalate exposure risk from the container itself.
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.
Metal leaching (aluminum, nickel, chromium)
Stainless steel 18/8 is food-approved, but nickel and chromium leaching can occur under extreme acidic conditions or prolonged contact; normal use with typical foods presents minimal risk. Individuals with severe nickel sensitivity may wish to perform a patch test or consult a dermatologist.
Glass breakage and sharp fragments
Borosilicate glass is more durable than standard glass but can still chip or shatter if dropped. This is a physical hazard, not chemical; proper handling and inspection reduce risk.
Lid or gasket materials (not detailed in product context)
S'well Eats lids and seals are not specified in available documentation; if they contain elastomers or plastics, they may pose leaching risk if not disclosed. Contact manufacturer to confirm lid composition if BPA or phthalate avoidance is critical.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
BPA & bisphenols
Stainless steel and borosilicate glass do not contain BPA, BPS, or phthalates. No plastic components in contact with food are documented for this model.
Source, FDA ↗Microplastics
Product is not a plastic container; heating does not pose microplastic migration risk from the container itself.
Source, EPA ↗The full breakdown
The brand's record and disclosure
S'well does not publicly disclose PFAS testing results, manufacturing standards, or supply-chain chemical management policies on its website or product documentation. The brand has not faced widely reported recalls or safety controversies in the food-container category. No independent certifications (e.g., NSF, FDA pre-market approval statements) are documented for this product line, limiting third-party verification of claims.
How it compares in its category
Glass and stainless steel food containers are among the lowest-migration options available; they avoid polymer hazards altogether. Compared to plastic lunch containers (BPA/phthalate risk) or ceramic with unknown glazes (lead/cadmium potential), this product presents fewer chemical exposure pathways. The trade-off is weight and breakage risk, which are physical hazards, not chemical.
If you buy it
Hand-wash or place in dishwasher per product instructions; stainless steel and borosilicate glass are durable across repeated thermal cycles. Inspect glass for chips or cracks before each use and replace if damaged. Do not assume the product is PFAS-free despite material choice; if PFAS exposure is a priority concern, contact S'well directly for testing documentation or consider glass-only alternatives with transparent sourcing.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- S'well has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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- Silicone gasket degradation
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Snapware
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- Leaching from glass matrix or lid seals
2 hazards checked on this product. See all of them.
OXO
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- Lid/gasket polymer leaching
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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.