Pyrex · Food Storage Containers
Pyrex Simply Store 10-Piece Glass Storage Container Set
Lower PFAS concern; glass itself is inherently PFAS-resistant, though plastic lids warrant caution.
Pyrex Simply Store uses borosilicate glass, which does not require Teflon-family coating coatings and presents lower intrinsic PFAS risk. However, the plastic lids (likely polypropylene or similar) may contain PFAS additives or processing residues; the brand provides no disclosure on PFAS status.
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borosilicate glass containers with plastic lids
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Category baseline
food packaging is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
Uncoated safe material
Bare, uncoated material (cast iron, stainless, carbon steel, or glass) with no surface treatment to contain PFAS.
The full breakdown
What it's made of and why it matters
Pyrex Simply Store uses borosilicate glass for containers and polypropylene (PP) plastic for lids. Borosilicate glass is highly resistant to thermal shock and chemical leaching because of its silica-alumina composition, making it one of the safest food storage materials. The PP lids are the variable: PP itself is generally stable, but repeated heating can degrade the plastic and potentially release oligomers; lids are not designed for microwave use in most Pyrex products.
The brand's record and disclosure
Pyrex (now owned by Instant Brands) is one of the oldest food storage brands in North America with a long history of borosilicate glass cookware and storage. The company does not prominently disclose plastic additive information (BPA, phthalates, etc.) on product pages, which is typical for the category but falls short of full transparency. No major recalls for leaching or chemical contamination have been widely reported for this product line. The brand has maintained a reputation for durability, though some consumers report lid degradation or clouding over years of use.
How it compares in its category
This product sits in the mainstream, mid-market segment: superior to single-use plastic containers and cheaper alternatives, but comparable to Rubbermaid Brilliance (also PP lids) and Anchor Hocking glass sets. Glass-based storage is inherently safer than plastic-only alternatives because the food contact surface is chemically inert. The main trade-off versus all-glass systems (glass lids) is convenience and durability; plastic lids are easier to close but have a finite lifespan.
If you buy it
Do not heat containers with lids on in the microwave; remove lids before reheating. Replace lids if they become cloudy, cracked, or no longer seal properly, as degraded plastic can leach. Hand-wash lids in cool to warm water rather than high-heat dishwasher cycles to extend life. Glass containers themselves are oven-safe and durable for decades; the lids are the consumable item you will likely replace periodically.
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.”
Plastic lid leaching (BPA/phthalates/oligomers)
Pyrex does not disclose whether PP lids contain BPA, phthalates, or other additives. PP is BPA-free by design, but heating degradation can mobilize residual oligomers; risk is low at room temperature but increases with repeated microwave or hot dishwasher use.
Thermal shock and glass breakage
Borosilicate glass is engineered to withstand temperature swings, and Pyrex has a long safety record; however, sudden temperature extremes (oven to ice bath) or drops can cause breakage, which is a mechanical rather than chemical hazard.
Lid degradation and seal failure
Consumer reports indicate that Pyrex PP lids become cloudy, warp, or lose seal integrity after 2-5 years of use, particularly with dishwasher exposure. This is a durability issue rather than a chemical safety issue, but failed seals can allow food contamination.
Lead or cadmium in glass or glazes
Borosilicate glass used in food storage is not glazed and does not contain lead or cadmium; the material itself is food-grade soda-lime silicate or borosilicate formulation free of these heavy metals.
Microplastic shedding from lids
Worn or scratched PP lids may shed micro-particles over time, especially if repeatedly dishwashed. No data exists for Pyrex specifically, but this is a theoretical risk with any plastic food-contact component over a long service life.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 88% 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.
Safer alternatives in Food Storage Containers
Caraway
Food Storage Set
Glass containers with plastic lids
Lower concern; glass + plastic lids with stated PFAS-free position, but no third-party verification of lid material.
⚠Risky category by default
Caraway
Home 9-Piece Mini Food Storage Set
Borosilicate glass containers with plastic lids
Lower-concern option; glass containers avoid PFAS coatings, but verify lid material before purchase.
⚠Risky category by default
Caraway
Cream 6.6-Cup Non-Stick Glass Food Storage Container with Lid
borosilicate glass with non-PFAS lid
Lower PFAS concern, glass container with stated non-PFAS lid, though third-party verification absent.
⚠Risky category by default
More food storage 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.