Oxo Prep & Go 4.1-Cup Leakproof Divided Lunch Container, Meal Prep Food Storage Container for Lunch Prep Work, School an
Skip until brand discloses PFAS status for plastic containers.
OXO makes no public PFAS claims for this lunch container. Rigid food-storage plastics often contain PFAS in coatings or as processing aids; the brand's silence leaves uncertainty about leakproof technology sources.
We flunk more products than we pass. This one earned its grade. How we grade
Material
BPA-free plastic container, tritan copolyester lid
Lab data
No public lab test
What Oxo Prep & Go 4.1-Cup Leakproof Divided is made of, ingredients and materials
This container uses BPA-free plastic for the body and a Tritan copolyester lid. Tritan is a copolyester designed to replace polycarbonate while avoiding bisphenol compounds; it does not inherently contain BPA, BPS, or phthalates at formulation. However, Tritan's long-term leaching profile under repeated heating and acidic foods remains less studied than older plastics. The divided compartments are typically injection-molded polypropylene or similar, which are food-contact compliant but can degrade with high heat.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Microplastics
Repeated heating, mechanical stress (dishwasher, stacking), and chemical exposure can cause micro-scale fracturing in copolyester lids and plastic compartments. Risk is low under normal use but increases with improper care or extended product life.
Source, EPA ↗PFAS
OXO has not disclosed PFAS testing or non-PFAS status for this container. Many plastic food-storage brands have detected PFAS in materials and manufacturing aids; OXO's silence on this category warrants the skip-pending-disclosure stance until the brand provides third-party PFAS test data.
Source, ATSDR ↗What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
BPA & bisphenols
Product is explicitly labeled BPA-free. No recalls or reports of BPA contamination in this model are on record. However, absence of BPA does not confirm absence of other bisphenols (e.g., BPS, BPF) in the resin or additives.
Source, FDA ↗Phthalates
Tritan copolyester and food-grade polypropylene used in this container are not formulated with phthalate plasticizers under standard food-contact manufacturing. No published test results or recalls document phthalate presence in OXO's meal-prep line.
Source, ATSDR ↗Coating or adhesive leachables from lid seals
Tritan lids include silicone gaskets for the seal; silicone is inert and food-contact approved. No independent testing of these seals by OXO is publicly available, and no contamination reports exist for this model.
The full breakdown
The brand's record and disclosure
OXO has not published detailed PFAS testing or disclosure statements for its plastic food-storage containers, despite growing industry adoption of such transparency. The brand holds no formal third-party certifications (such as Cradle to Cradle or GREENGUARD) for this specific product line. OXO's general reputation centers on ergonomic design and function rather than chemical transparency; no major recalls or hazard complaints involving this container model are on public record.
How it compares in its category
Most mainstream meal-prep containers (Rubbermaid, Sistema, Glad) also use BPA-free plastics and offer similar leak ratings without additional chemical disclosures. Premium alternatives (e.g., glass containers, stainless steel bento boxes) eliminate plastic leaching concerns entirely but sacrifice durability and convenience. OXO's Tritan lid is a step above standard polypropylene lids in clarity and durability, but the lack of PFAS transparency places it at parity or slightly behind brands that openly test for per- and polyfluorinated compounds.
If you buy it
Avoid heating food in the plastic compartments; transfer to ceramic or glass for reheating. Hand-wash rather than dishwasher to reduce thermal stress on the lid seals and plastic. Do not store acidic foods (citrus, tomato, vinegar-based) for prolonged periods, as copolyesters can leach trace compounds when stressed chemically. Replace the container every 2-3 years or if you notice cloudiness, cracks, or odor retention, which signal material breakdown.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- OXO has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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- Leaching from glass matrix or lid seals
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More lunch boxes 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.