Ziploc · Disposable Food Containers
Ziploc Endurables Food Storage Container
Lower concern, but brand provides no PFAS transparency.
Ziploc Endurables uses polypropylene, an inherently PFAS-free plastic. Brand makes no PFAS claims or disclosures, creating modest uncertainty about any coatings or treatments.
We flunk more products than we pass. This one earned its grade. How we grade
Material
polypropylene plastic container
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
food packaging is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
Ziploc Endurables containers are made from polypropylene (PP), a thermoplastic polymer rated as food-safe by the FDA. Polypropylene does not contain BPA, BPS, or phthalates by design and is one of the more chemically stable food-contact plastics. The material has a higher melting point than polyethylene (around 130°C / 266°F), making it suitable for warm (not hot) foods and microwave use on lower settings.
The brand's record and disclosure
Ziploc (SC Johnson subsidiary) has not made public commitments to PFAS elimination in food storage lines, though recent regulatory pressure has prompted some reformulations across the industry. The brand has no documented major recalls tied to food-contact leaching from polypropylene containers. SC Johnson maintains FDA compliance certifications but provides limited transparency on chemical additives or testing results to consumers.
How it compares in its category
Polypropylene food containers are mid-tier for chemical safety: safer than older polycarbonate (BPA-prone) and polyvinyl chloride, broadly equivalent to alternatives from Rubbermaid or Lock&Lock, but less transparent than brands offering third-party testing (e.g., Pyrex glass or stainless steel). Ziploc Endurables' main trade-off is convenience (durability, stackability) vs. the incremental safety advantage of inert materials like borosilicate glass.
If you buy it
Keep these containers out of direct heat and the oven; microwave only on low-to-medium power and avoid prolonged heating. Do not use for hot liquids straight from the stove. Replace containers if the plastic shows whitening, cloudiness, warping, or visible wear, as degraded polymer can increase leaching risk. Hand wash or use gentle dishwasher cycles; abrasion and heat stress from harsh cleaning compounds can degrade the material over time.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
BPA/BPS and phthalates
Polypropylene is not formulated with BPA or BPS intentionally, and regulatory data do not flag common phthalate plasticizers in PP food containers. No documented leaching events from Ziploc Endurables on record.
Microplastics and polymer degradation under heat
Prolonged exposure to high temperatures or abrasion can cause polypropylene to degrade and shed microparticles. Risk is low under normal use (cool to warm food storage) but increases with misuse (direct flame, repeated microwave abuse, or dishwasher heat cycles over years).
Additive leaching from polymer stabilizers and colorants
Polypropylene food containers may contain residual stabilizers and processing additives, but FDA-compliant formulations show minimal leaching into food at room temperature or warm conditions. No specific safety alerts documented for Ziploc Endurables.
PFAS in coatings or seals
The lid or seal gasket may contain Teflon-family coating (non-stick or water-resistance coatings) that release PFAS. Ziploc provides no public disclosure of PFAS-free certification, so risk cannot be ruled out; this is graded separately at 70/100 safety.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More disposable food containers 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.