Tanimura & Antle Review, Is Tanimura & Antle Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 3 graded products, Tanimura & Antle averages Poor (27/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade Good or better yet. Grades are model-based estimates, not lab results.
Graded and flagged Poor and Bad, we’d swap these
Tanimura & Antle
100% Compostable Clamshell Take Out Food Containers
Plant-based compostable resin (likely PLA or PBAT blend) with unknown moisture/grease barrier coating
PFAS
Unconfirmed by brand. Fluorinated coatings are standard in compostable food packaging to…
Monomer and oligomer leaching from PLA/PBAT resin
Lactic acid oligomers from PLA and adipic acid/butanediol compounds from PBAT can migrate…
Microplastic degradation in non-composted environments
If containers are landfilled or littered instead of industrial composted, PLA and PBAT…
Inadequate composability claims without certification
Labeling as 100% compostable does not guarantee the finished container meets industrial…
Avoid until PFAS status is disclosed; compostable clamshells often use fluorinated coatings.
⚠Waterproof or stain-proof treatment
Tanimura & Antle
Compostable Takeout Container - Rectangular Grab 'n Go 64 oz. (200 / case)
Fiber-based (likely sugarcane/bagasse) with unknown grease-resistant coating
PFAS
Fiber takeout containers almost universally require fluorinated or fluorine-free…
Coating degradation and microparticle migration
Fiber containers degrade when wet or heated; coating breakdown can release microscopic…
Mold or bacterial growth from moisture retention
If stored damp or reused, fiber's porous structure can harbor mold or bacteria. Risk is…
Avoid until coating composition is disclosed; compostable containers often use PFAS treatments.
⚠Waterproof or stain-proof treatment
Tanimura & Antle
Compostable Takeout Containers
Plant-based fiber/pulp with waterproof barrier coating (unspecified)
PFAS
Fluorinated water-resistant coatings are standard in compostable takeout containers.…
Other synthetic polymer or fluorinated additives in coating
Even if PFAS-free, undisclosed barrier coatings may contain other halogenated or…
Microplastic or particulate shedding from coating
If the barrier coating is polymer-based or synthetic, mechanical stress (cutting…
Incomplete industrial composability due to coating residue
Many compostable container coatings, especially fluorinated or synthetic barriers…
Avoid until coating chemistry is disclosed; compostable containers often use PFAS barriers.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →