Pyrex · Food Storage Containers
PYREX 18-Piece Clear Glass Food Storage Container Set
Glass containers with plastic lids and no coating on record.
Pyrex 18-piece sets use borosilicate glass, which doesn't require PFAS coatings and poses minimal PFAS exposure risk. The plastic lids may contain processing aids or slip agents, but Pyrex provides no disclosure on PFAS or coatings. No lab data or third-party verification exists.
We flunk more products than we pass. This one earned its grade. How we grade
Material
borosilicate glass with plastic lids
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
What PYREX 18-Piece Clear Glass Container Set is made of, ingredients and materials
Pyrex containers use borosilicate glass, a high-silica formulation that resists thermal shock and chemical leaching. The plastic lids are typically polypropylene (PP) or similar, which are among the more chemically stable food-contact plastics. Glass itself is chemically inert and does not degrade into food; the risk surface is limited to the lid seals and any plastic gaskets that contact food during storage.
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.
PFAS
Polypropylene lids can leach trace compounds when exposed to heat or acidic foods over extended periods. Risk is low under normal refrigerated storage but increases if lids contact hot food or are used in high-heat environments repeatedly.
Source, ATSDR ↗Seal degradation and bacterial growth
Plastic gaskets and lids can degrade or accumulate food residue in crevices if not cleaned thoroughly, potentially creating reservoirs for microbial growth. This is a maintenance issue rather than a manufacturing defect.
Glass breakage hazard
Borosilicate glass is impact-resistant but not shatterproof. Some users have reported cracks or shattering from thermal shock (sudden temperature changes) or drops, releasing sharp glass fragments into food or storage areas.
Lid staining and odor retention
Plastic lids commonly stain and retain odors from foods like tomato sauce or turmeric; while not a safety hazard, this may indicate surface absorption of compounds. Replacement lids are commercially available but at additional cost.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
BPA & bisphenols
Pyrex has not disclosed BPA or BPS use in this product's lids. Polypropylene formulations for food-contact typically do not include BPA, but independent testing of this specific lid batch is not on public record.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Pyrex (owned by Instant Brands) does not publicly disclose detailed PFAS testing or PFAS-free certifications for this product line. The brand has not faced major food-storage safety recalls in recent years. Pyrex maintains compliance with FDA food-contact regulations but does not advertise third-party testing or materials transparency beyond regulatory baseline.
How it compares in its category
Borosilicate glass food containers have lower concern for BPA and phthalate issues compared to some polycarbonate or polypropylene-only alternatives. Competing glass-container brands (Rubbermaid Brilliance, OXO) use similar materials and comparable lid formulations. Glass containers cost more upfront but eliminate degradation risks that affect plastic-only storage over time.
If you buy it
Store food at room temperature or refrigerated; avoid direct contact between very hot food and plastic lids (cool food slightly first or transfer to a non-plastic container when hot). Replace lids if they become cloudy, cracked, or warped, as seal integrity affects both food preservation and leachate risk. Hand-wash lids rather than dishwasher to extend plastic life, though the containers themselves are dishwasher-safe.
What is not known about PFAS in this product?
- Basis
- Model estimate, 88% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Pyrex has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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.