Tupperware · Food Storage Containers
Tupperware Thatsa Mega Bowl
Lower PFAS concern; standard food-storage plastic with no known treatment triggers.
Tupperware Thatsa Mega Bowl is a food-storage container made from polypropylene, a non-fluorinated plastic commonly used in kitchenware. Tupperware makes no public claims about PFAS and does not disclose coating or treatment details.
Shop Tupperware on Amazon →Material
Polypropylene (PP) plastic
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
Thatsa Mega Bowl is polypropylene (PP, resin code 5), a thermoplastic chosen for food storage because it resists leaching better than lower-grade plastics like PVC or polystyrene. PP has a melting point around 130-180°C, making it stable at typical microwave and dishwasher temperatures if used correctly. Tupperware's proprietary manufacturing adds a plastic-to-plastic seal design rather than problematic adhesives, reducing volatile organic compound (VOC) off-gassing from glues.
The brand's record and disclosure
Tupperware has sold food-storage containers for over 70 years without major documented health recalls tied to leaching or material breakdown in this product line. The brand does not publicly disclose BPA or phthalate testing for individual products, which is typical of legacy manufacturers predating current transparency expectations. No established safety certifications (e.g., FDA specific-use letters) are marketed for this model, but PP itself meets FDA indirect food-additive rules.
How it compares in its category
PP food-storage containers are considered mid-to-upper tier for safety within plastics: BPA-free by formulation (PP does not use BPA), and phthalates are not required in PP production, though trace contamination is possible depending on colorant or UV-stabilizer origin. Glass containers avoid polymer leaching entirely but cost more and break; standard single-use plastics (PET, PVC) carry higher leaching risk. Tupperware's thick-wall construction and interlocking seal design reduce microcracking over time compared to thinner imports.
If you buy it
Store at room temperature or refrigerated; do not microwave with oily or acidic foods for extended periods, as heat accelerates minor PP degradation and odor absorption. Inspect regularly for cloudiness, stress cracks, or permanent discoloration, which signal polymer aging. Hand-wash or use a gentle dishwasher cycle to extend seal life. Replace every 3-5 years if used daily, or sooner if cracks appear; aged plastics shed microparticles.
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 phthalates
Polypropylene is not formulated with BPA, and phthalate plasticizers are not required in PP production. No recalls or leaching incidents are on record for Tupperware Thatsa bowls in this category.
Microplastics from degradation
Extended use over years, especially if heated repeatedly or exposed to sunlight, can cause microscopic crazing and shedding in any PP container. Risk is low for normal storage but increases with age and thermal cycling.
Odor and flavor absorption
PP is known to absorb and retain strong odors and pigments (e.g., tomato sauce, turmeric) over time, though this is cosmetic rather than a toxicity hazard. Some users report this as a persistent issue with Tupperware products after years of use.
Seal degradation and bacterial growth
The interlocking lid-to-bowl seal can wear or crack, allowing food to dry out or bacteria to colonize edges. Tupperware's proprietary seal design minimizes this versus glued lids, but replacement seals are costly.
Heavy metals in colorants
No lead or cadmium contamination has been documented in Tupperware polypropylene products. PP is opaque and does not rely on lead-based pigments as ceramics do.
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.
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.