Anchor Hocking · Food Storage Containers
Anchor Hocking 1-Cup Round Food Storage Containers with Plastic Lids (Set of 4)
Glass body is PFAS-lower-concern; plastic lids lack transparency, acceptable for occasional use, not prolonged contact.
Anchor Hocking's borosilicate glass containers present lower PFAS concern. However, the plastic lids are unspecified (likely polypropylene or similar commodity plastic), and the brand discloses nothing about PFAS or coatings.
Shop Anchor Hocking on Amazon →Material
borosilicate glass container; plastic lids (composition unspecified)
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
The container body is borosilicate glass, a high-silica formulation that resists thermal shock and chemical leaching far better than standard soda-lime glass. Borosilicate has minimal heavy metal content in its matrix and does not leach lead or cadmium under normal use. The plastic lids are composition-unspecified, a significant transparency gap; they are likely polypropylene (PP) or polyethylene terephthalate (PET) based on industry norms for food-storage lids, but Anchor Hocking has not disclosed this publicly.
The brand's record and disclosure
Anchor Hocking is a major US glassware manufacturer with no recorded recalls or safety controversies related to these specific containers. The company maintains silent stance on PFAS and does not publish material safety data sheets or lid polymer identification on packaging or website for this line. Absence of disclosure is not absence of safety, but it limits independent verification of lid composition and any non-intentional contaminants.
How it compares in its category
Borosilicate glass containers rank among the safest food-storage options; they avoid the BPA/phthalate concerns common to polycarbonate or vinyl-heavy plastics. Glass body eliminates microplastic shedding risk entirely. The weak point is the plastic lid; competitor brands (Pyrex, OXO, Rubbermaid) often disclose lid material or offer certified lids, whereas Anchor Hocking does not.
If you buy it
Use lids for room-temperature and refrigerated storage only; avoid microwaving with the lid sealed, as low-grade plastics may leach under steam pressure. Replace lids every 1-2 years if discolored, cracked, or odorous. Wash by hand rather than high-heat dishwasher to extend lid life. Glass body is oven-safe to 500°F, but lids are not; always remove before heating.
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 composition unknown
Lid polymer type is not disclosed; if low-grade PP or recycled plastic, risk of unintentional BPA/phthalate leaching increases with age, heat, or acidic foods. Manufacturer silence prevents definitive assessment.
Microplastic shedding from plastic lids
Worn or degraded plastic lids can shed microparticles into stored food, especially if exposed to repeated hot cycles or abrasive washing. Replacement is the only mitigation.
Lead or cadmium in glass body
Borosilicate glass is inherently low in heavy metals. No recalls or test results suggest contamination in Anchor Hocking containers; standard US glass manufacturing rules limit lead/cadmium to trace levels.
Thermal shock or glass breakage
While borosilicate is thermal-shock-resistant, rapid temperature extremes (e.g., freezer to hot stovetop) can still cause fracture. This is a mechanical hazard, not chemical, but fragments pose ingestion and injury risk.
Lid seal failure and bacterial growth
Loose or worn lids do not create an airtight seal, allowing bacterial contamination and mold growth if stored moist. Regular inspection and timely replacement prevent this.
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.
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.