Tupperware · Food Storage Containers
Tupperware Thatsa Airtight Leakproof Mixing Bowl
Lower PFAS concern for this rigid plastic bowl; no coating, no intentional fluorochemical use detected.
Tupperware's Thatsa mixing bowl is rigid polypropylene plastic without nonstick or water-resistant coatings, which are the primary PFAS risk vectors in food containers. Tupperware makes no PFAS claims either way. No public lab data or recalls flag this product; the material itself carries lower concern than coated or treated plastics.
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Polypropylene (PP) plastic bowl with polymer lid
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
Tupperware Thatsa bowls are injection-molded polypropylene (PP, resin code 5), a thermoplastic that does not require coatings or fluorinated water-repellents to function. PP is a relatively inert plastic with a higher melting point (around 130 degrees Celsius) than many food-storage polymers, meaning it resists leaching at normal kitchen temperatures and microwave use. The polymer lid is also PP-based. Because PP has no intentional fluorochemical additives in its base formulation and Tupperware has not disclosed PFAS-containing surface treatments for this product line, chemical migration risk from the bowl itself is lower than containers made from polycarbonate or older polystyrene.
The brand's record and disclosure
Tupperware has maintained a decades-long market presence and undergoes third-party food-contact material testing per FDA and European food safety standards, though the company does not publish detailed chemical composition or PFAS testing results publicly. No major recalls specific to chemical leaching in Thatsa bowls have been recorded in FDA or CPSC databases. The brand's silence on PFAS is typical for rigid plastic manufacturers; absence of disclosure does not indicate presence of PFAS in this product line, only that the company does not voluntarily communicate test data.
How it compares in its category
Polypropylene rigid food storage is a mainstream, lower-concern choice compared to polycarbonate bowls (which may contain BPA) or very old melamine dinnerware (formaldehyde-resin risk). Glass alternatives eliminate plastic leaching entirely but offer no performance advantage for this mixing bowl application. Tupperware's airtight seal design and established manufacturing standards place it in the mid-to-upper tier of PP food containers in terms of quality control and longevity.
If you buy it
Keep use below 100 degrees Celsius (microwave-safe but avoid prolonged heating of fatty or acidic foods that may stress the plastic over decades). Replace the lid if it becomes cloudy, cracked, or loses seal integrity, as degraded polymer can shed microplastics. Hand wash or use the top rack of the dishwasher to extend lid life. Store away from direct sunlight and heat sources to slow polymer aging and maintain clarity and function.
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 leaching from polypropylene
Polypropylene is not manufactured with BPA or BPS as a base resin or required additive. No BPA or BPS migration has been reported in Tupperware Thatsa bowls or standard PP rigid containers in published studies.
Phthalate plasticizers in polymer
PP rigid injection-molded products typically do not require phthalate plasticizers to achieve their mechanical properties. Tupperware Thatsa bowls are not documented to contain phthalates, and PP formulations for food contact are generally phthalate-free by design.
Microplastic shedding from degraded polymer
Any plastic container can shed microscopic fragments if the material degrades from age, UV exposure, or mechanical stress (cracks, gouges, repeated dishwasher cycling). Tupperware's durable PP formulation degrades more slowly than thin-walled plastics, but replacement of visibly clouded or damaged lids and bowls minimizes this risk.
Chemical migration from colorants or additives in the plastic
Tupperware uses FDA-approved food-contact compliant pigments and stabilizers in its PP products. No specific heavy-metal contamination or colorant leaching has been documented for this product line in independent testing or recall notices.
Seal degradation reducing airtight function
The polymer lid gasket can lose elasticity and seal integrity over years of use and dishwasher exposure. This is a durability issue rather than a chemical hazard, but loss of seal can allow food oxidation and microbial growth if contents are stored long-term in non-refrigerated conditions.
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.