Anchor Hocking · Food Storage Containers
Anchor Hocking TrueSeal 10 Piece Glass Food Storage Set
Lower PFAS concern, glass is inherently safe; check lid material separately if concerned.
Anchor Hocking TrueSeal is primarily borosilicate glass, which does not require PFAS coatings. The lids are plastic (likely polypropylene), not treated with water/grease-resistant coatings typical of PFAS-containing products.
Shop Anchor Hocking on Amazon →Material
Borosilicate glass with plastic (polypropylene) lids
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Uncoated safe material
Bare, uncoated material (cast iron, stainless, carbon steel, or glass) with no surface treatment to contain PFAS.
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
This set pairs borosilicate glass containers with polypropylene (PP) lids. Borosilicate glass is highly resistant to thermal shock and chemical leaching because its silica network is dense and stable at typical use temperatures. Polypropylene lids are food-contact safe at moderate temperatures but can degrade or leach if exposed to prolonged heat above 100°C (212°F) or fatty/acidic foods for extended periods.
The brand's record and disclosure
Anchor Hocking is a long-established US glassware manufacturer (founded 1905) with no recorded recalls specific to this product line for chemical contamination or leaching. The company does not prominently disclose PFAS testing or mitigation strategies, which is typical for legacy glass manufacturers but reflects a general industry silence on the issue. No significant safety controversies are documented for this particular product.
How it compares in its category
Glass food storage containers are among the safest options in the category because the material does not leach chemicals into food under normal use. Anchor Hocking's borosilicate formulation is more durable than soda-lime glass alternatives and resists thermal stress better. Polypropylene lids are standard across mid-range glass storage sets; premium alternatives sometimes use silicone seals or glass lids, which further reduce any leaching concern.
If you buy it
Avoid placing hot food directly into cold containers or microwaving for prolonged periods at high power to prevent thermal shock. Do not use lids in the oven (glass containers are oven-safe to roughly 230°C, but plastic lids are not). Hand-wash lids or use low heat dishwasher cycles to extend polypropylene lifespan. Replace lids if they crack, discolor, or lose flexibility, as degraded plastic may shed particles.
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.”
Polypropylene lid degradation under heat
PP lids can soften, warp, or leach trace compounds if exposed to prolonged high temperatures (above 100°C) or used in microwave ovens repeatedly. This is not unique to Anchor Hocking but a general material limitation; most users avoid this through normal care.
Thermal shock to glass container
While borosilicate glass is designed to resist thermal shock, sudden extreme temperature changes (e.g., from freezer to hot oven) can cause cracking or breakage. This is a mechanical rather than chemical hazard but relevant to safe use.
Lead or cadmium in glass formulation
Borosilicate glass is formulated without intentional lead or cadmium additions. No historical recalls or test findings of heavy metals in Anchor Hocking borosilicate containers are on record.
Microplastic shedding from container or lid
Glass itself does not shed microplastics. Polypropylene lids are stable under normal use; microplastic shedding is not documented for intact PP lids in food storage applications unless visibly degraded.
BPA or phthalate contamination in lid material
Polypropylene does not contain BPA or phthalates by composition. No recalls or contamination reports specific to this product or brand have been issued on these chemicals.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 82% 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.