Caraway · Food Storage Containers
Caraway Home 9-Piece Mini Food Storage Set
Lower-concern option; glass containers avoid PFAS coatings, but verify lid material before purchase.
Caraway's mini food storage set uses borosilicate glass, a non-coated, inert material with lower PFAS risk than plastic or nonstick-coated alternatives. The brand claims PFAS-free products, though no independent third-party verification is publicly disclosed.
Brand says: “Caraway states their products are PFAS-free and made without artificial coatings or toxic chemicals.”
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Borosilicate glass containers with plastic lids
Brand disclosure
Brand claims PFAS-free
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.
Brand-stated PFAS-free
The brand states the product is PFAS-free (self-declared).
The full breakdown
What it's made of and why it matters
This set uses borosilicate glass, a chemically inert material that does not leach BPA, phthalates, or other endocrine disruptors into food at any temperature. The plastic lids are the variable: Caraway has not publicly disclosed whether lids contain BPA, BPS, or phthalate plasticizers in standard communications. Borosilicate glass itself is among the safest food-contact materials available and does not degrade or off-gas under normal refrigerator or moderate microwave use.
The brand's record and disclosure
Caraway markets itself as a health-conscious cookware and storage brand with explicit PFAS-free claims on their product pages. The company has published materials on avoiding harmful chemicals and positions transparency as a core value. However, detailed material safety data sheets for lid composition are not readily available on their consumer-facing site, which limits full verification. No significant recalls or safety controversies have been publicly documented for this product line.
How it compares in its category
Glass food storage is among the lowest-risk options in the category; most plastic-only alternatives (polypropylene, polycarbonate) carry documented BPA or phthalate concerns if heated. Stainless steel containers avoid plastic entirely but are not transparent and cost more. Caraway's borosilicate-plus-plastic design is a pragmatic middle ground: the glass eliminates the primary chemical leaching vector, while plastic lids remain a secondary exposure pathway if microwaved frequently or at high heat.
If you buy it
Store food in the refrigerator or cool/room-temperature use without concern; borosilicate is non-reactive and food-safe indefinitely. Avoid heating with lids on; if microwaving, remove the lid first or use low heat only. Replace plastic lids if they become visibly cloudy, cracked, or discolored, as degraded plastic is more likely to leach. Handwash lids rather than dishwasher to extend their lifespan and reduce heat exposure to the plastic.
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 in plastic lids
Caraway does not publicly specify the plastic resin type or plasticizer content of lids. Most modern food-storage lids use polypropylene (lower risk) but some use copolyesters that may contain BPA or phthalates; contact the brand directly for lid material confirmation.
Plastic lid degradation and microleaching
Clear plastic lids on glass containers can become cloudy and brittle over time with repeated heating or dishwasher cycles. Degraded plastic may shed microparticles and increase leaching; replacement lids are available but require additional purchase.
Thermal stress and lid-sealing failure
Borosilicate glass tolerates temperature swings, but plastic lids do not; rapid heating or cooling can warp lids or compromise seals, allowing mold or bacterial growth in stored food if airtightness is lost.
Glass breakage and sharp fragments
Borosilicate is more impact-resistant than soda-lime glass, but any glass container carries breakage risk if dropped. Caraway does not report a higher-than-typical fracture rate for this mini set.
Lid volatiles or off-gassing
No published reports of odor, taste transfer, or volatile emissions from Caraway storage-set lids under normal use conditions; this remains a secondary concern compared to plastic resin choice.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% 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.
Formulations and coatings change between production runs. Always check the current label before buying.
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.