OXO · Food Storage Containers
OXO Good Grips 3-Piece POP Container Variety Set
Lower PFAS concern for basic food storage, but no independent verification or transparency.
OXO's POP containers are made from polypropylene plastic and acetal copolymer, neither of which typically requires PFAS processing. These are rigid storage containers without nonstick, waterproof, or stain-resistant coatings that would trigger PFAS use.
Shop OXO on Amazon →Material
BPA-free polypropylene (PP) plastic containers; acetal copolymer 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.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
These containers are polypropylene (PP plastic, #5 resin code), a thermoplastic chosen for food storage because it resists leaching at room temperature and modest heating. The lids use acetal copolymer, a rigid engineering plastic also considered stable for food contact. OXO explicitly markets these as BPA-free, which removes one common endocrine disruptor concern. PP itself does not contain phthalates as a formulation requirement, though degraded or recycled plastic could theoretically introduce contaminants; no such issues are documented for OXO's product line.
The brand's record and disclosure
OXO has no major food-contact safety recalls on record for this specific product line and maintains general good reputation in consumer reports for kitchen storage. The brand does not publicly disclose comprehensive materials testing, third-party certifications (like NSF or FDA pre-approval), or PFAS testing results, creating a gap in transparency rather than evidence of hazard. OXO is privately held and operates under FDA compliance baseline but does not advertise beyond-compliance vetting. No lawsuits or regulatory warnings specific to this container set are documented.
How it compares in its category
PP-based food storage containers are mid-range for safety in the category; glass alternatives offer zero leaching risk but higher breakage hazard, while older polycarbonate (PC) containers carry BPA concerns OXO avoids. PET (#1) is also stable but less durable for repeated heating. OXO's product sits in the mainstream safety tier, with no documented advantage or disadvantage versus Rubbermaid, Lock and Lock, or Pyrex plastic lines in terms of material hazard profile. The main differentiator is design (pop-lid mechanism) rather than chemistry.
If you buy it
Use these for room-temperature and refrigerated storage; avoid prolonged direct microwave heating above 140F (60C) or prolonged contact with hot foods, as PP can soften and potentially allow trace migration at higher temperatures. Do not use for hot oil, fatty foods at high heat, or acidic liquids stored warm, which accelerate any degradation. Replace containers if lids no longer seal tightly, if plastic becomes cloudy or brittle, or if you notice odor transfer. Wash by hand or top rack dishwasher; allow to cool before sealing hot contents.
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 and other bisphenols
OXO explicitly states these containers are BPA-free. No reports of BPA or substitute bisphenols (BPS, BPF) detected in independent testing of this product line.
Phthalate plasticizers
Polypropylene and acetal copolymer do not use phthalates as functional additives by material design. No documented phthalate leaching from OXO food storage containers.
Microplastics from degradation or shedding
Repeated heating, freezing, or mechanical wear over years can cause microscopic plastic particle release in any thermoplastic container. Risk is low for normal room-temperature storage but increases if containers are heated, scratched, or used beyond typical service life (3-5 years).
Acetal copolymer lid stability
Acetal plastics can hydrolyze (break down) slowly when exposed to hot, moist environments or acidic foods at elevated temperature. For this product, risk is low under normal use but increases if containers are repeatedly microwaved or used with hot or vinegar-based foods.
Odor absorption and chemical transfer from prior use or contamination
PP is semi-porous and can absorb odors and trace organics from food or storage environment. Risk is cosmetic (persistent garlic smell, for example) rather than toxic, but indicates the container is absorbing molecules and may eventually off-gas them.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 75% 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.