Lock & Lock · Food Storage Containers
Lock & Lock Easy Essentials Food Storage Container 22-Piece
Lower PFAS concern; standard PP food containers carry minimal legacy PFAS risk, though no brand disclosure exists.
Lock & Lock Easy Essentials are rigid plastic food storage containers made from polypropylene with silicone gasket seals, materials with inherently lower PFAS association compared to nonstick coatings or durable water-resistant treatments. The brand offers no PFAS claim or third-party testing.
Shop Lock & Lock on Amazon →Material
Polypropylene (PP) plastic containers with silicone seals
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
Lock & Lock Easy Essentials containers are polypropylene (PP, #5 plastic) with silicone seals. Polypropylene is a relatively stable, food-grade plastic approved by the FDA and does not contain BPA or BPS by formulation. The silicone seals are chemically inert and resistant to degradation in normal use, making this a straightforward material pairing with minimal leaching risk at typical food storage temperatures.
The brand's record and disclosure
Lock & Lock has no publicly documented safety recalls, chemical disclosure controversies, or third-party certifications (e.g., NSF, BPA-free labeling). The brand does not proactively disclose manufacturing practices or chemical testing results on their website. No established evidence of heavy metals, phthalates, or formaldehyde in their food container lines exists in public databases or regulatory filings.
How it compares in its category
Polypropylene food storage is mainstream and considered lower-risk than older polycarbonate or polyvinyl chloride alternatives. Lock & Lock's pricing and design are comparable to Rubbermaid, Pyrex, and OXO offerings. Many competitors offer third-party certifications (BPA-free, NSF) that Lock & Lock does not advertise, though absence of certification does not indicate presence of risk with PP materials.
If you buy it
Do not microwave filled containers; polypropylene softens above 160°C and may warp or leach at high heat. Hand wash or use dishwasher on low heat settings. Replace containers if seals crack, if plastic becomes brittle, or if any discoloration or odor develops over years of use. Store away from direct sunlight to slow polymer degradation. Silicone seals should last the container's lifetime if kept dry and clean between uses.
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 presence
Polypropylene (#5) is not formulated with bisphenol compounds by material design. Lock & Lock does not use polycarbonate, and no regulatory or third-party testing has flagged BPA or BPS in their PP containers.
Phthalates in plastic matrix
Polypropylene does not typically contain phthalate plasticizers; these are common in PVC and polyvinyl chloride products, which this product is not. No public evidence of phthalates in Lock & Lock PP food containers.
Leaching upon heating or acidic contact
While PP is stable, repeated high-temperature use or prolonged contact with acidic foods (vinegar, citrus, tomato) may accelerate minor polymer degradation over years. Risk is low under normal storage conditions but increases if containers are regularly microwaved or exposed to heat above 65°C.
Silicone seal degradation and bacterial harbor
Silicone seals are food-safe but can harbor bacteria if not thoroughly dried after washing or if seals crack microscopic. Cleaning seals separately and air-drying thoroughly before storage reduces this risk; replacement seals are not always available as separate purchases.
Microplastics from container wear
Over years, mechanical wear (stacking, scratching, dishwasher abrasion) can shed fine PP particles into stored food. This is a general risk for all plastic food containers and is minimized by hand washing, avoiding metal utensils, and replacing containers every 5-7 years if heavily used.
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.