Dart Container Review, Is Dart Container 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 7 graded products, Dart Container averages Poor (25/100). 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
Dart Container
Dart ProPlanet Hinged Take-Out Container
Molded fiber/paperboard with proprietary coating
PFAS
Proprietary coating composition is undisclosed; PFAS-based repellents are standard in…
Coating leachates (unspecified chemistry)
Non-PFAS coating chemicals (e.g., phenolic resins, urea-formaldehyde, or other synthetic…
Microplastics
If the coating contains synthetic polymers or degraded plastic-like materials, wear…
Migration of adhesives or binders used in pulp processing
Molded fiber production uses starches, binders, and sometimes chemical de-inking agents.…
Avoid until Dart confirms the coating is PFAS-free.
⚠Waterproof or stain-proof treatment
Dart Container
Dart ProPlanet 8" x 8" 3-Compartment Compostable Fiber Hinged Take-Out Container
Compostable fiber (plant-based pulp) with unknown water/grease-resistant coating
PFAS
Dart does not publicly specify whether the grease-resistant coating uses alternative…
Microplastic or fiber shedding when heated or agitated
Molded fiber can shed small particles if the coating degrades or if the container is…
Incomplete or slow decomposition if mishandled
If the coating is PFAS-based, it will not degrade in industrial composting and will…
Contamination risk if reused or washed
These are single-use containers and not designed for washing or reuse. Repeated water…
Avoid, compostable fiber containers often use fluorinated PFAS for grease resistance.
⚠Waterproof or stain-proof treatment
Dart Container
Dart Compostable Molded Fiber Hinged Trays ProPlanet Seal
molded fiber with unspecified water-resistant coating
Coating leachables (fluorochemicals, unspecified plasticizers)
Water-resistant coatings on molded fiber commonly contain PFAS or other fluorochemicals…
Microplastics
Repeated use, washing, or contact with abrasive foods may cause microscopic flaking of…
Degradation of coating under exposure conditions
Molded fiber coating durability is material-dependent and not standardized for food…
Incomplete compostability if coating is synthetic
ProPlanet Seal claims compostability, but if the water-resistant coating contains PFAS or…
Avoid unless Dart confirms the coating is PFAS-free.
⚠Waterproof or stain-proof treatment
Dart Container
Dart Compostable Molded Fiber Hinged Trays
Molded fiber (sugarcane bagasse/wood pulp) with waterproofing coating
PFAS
The interior coating chemistry is proprietary and unconfirmed. If fluorinated, risk is…
Coating degradation and microfiber/particulate shedding over repeated use or washing
Molded fiber trays are typically single-use, but commercial operations may reuse if…
Cross-contamination or bacterial colonization of coating surface if reused
Porous molded fiber can trap bacteria and food residue if hand-washed rather than…
Avoid until Dart discloses coating chemistry, compostability doesn't mean PFAS-free.
⚠Waterproof or stain-proof treatment
Dart Container
Dart Compostable Fiber Take-Out Bowl 24 oz.
Compostable fiber (plant-based) with unspecified grease-resistant coating
PFAS
Compostable fiber bowls commonly use fluorinated coatings to repel moisture and oil. Dart…
Coating migration into fatty or warm foods
If the interior coating contains PFAS or other synthetic polymers, exposure increases…
Microplastic or particulate from fiber degradation
Molded fiber bowls can shed fibers or coating fragments during use, especially if the…
Avoid unless Dart discloses coating chemistry, compostable bowls often use PFAS barriers.
⚠Waterproof or stain-proof treatment
Dart Container
Dart Compostable Rectangular Fiber Take-Out Container 30-32 oz. 300/Case
Fiber pulp (compostable) with unspecified moisture/grease barrier coating
PFAS
The unspecified grease-barrier coating is statistically likely to contain PFAS or…
Barrier chemical migration on heating
Even if the coating is non-fluorinated (polyester, wax, or PFAS-free alternatives)…
Mold or bacterial colonization if wet-stored
Fiber pulp is hygroscopic and can harbor mold or bacterial growth if stored damp or in…
Lack of compostability in home or landfill conditions
Compostable fiber containers marketed as such typically require industrial composting…
Wait for transparent coating information.
⚠Waterproof or stain-proof treatment
Dart Container
Dart 20-24 oz. Compostable Rectangular Fiber Take-Out Container
Fiber-based container with grease-resistant coating (composition unspecified)
PFAS
Fiber food containers almost universally rely on PFAS-based fluorochemical barriers for…
Coating degradation and migration
Fiber containers exposed to hot, acidic, or high-fat foods may experience microscopic…
Avoid until Dart clarifies.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →