Dart Container · Food Packaging
Dart Compostable Fiber Take-Out Bowl 24 oz.
Avoid unless Dart discloses coating chemistry, compostable bowls often use PFAS barriers.
Dart markets these fiber bowls as eco-friendly but won't reveal the grease-resistant coating formula. Compostable food packaging routinely uses PFAS-based Teflon-family coating.
The safe swap
Loliware
Compostable Hinged Deli Containers
100/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Compostable fiber (plant-based) with unspecified grease-resistant coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Waterproof / stain-resistant treatment
Water-repellent treatments have historically contained PFAS chemicals.
No PFAS disclosure
The company has not publicly discussed PFAS in this product.
Category baseline
food packaging is a category where PFAS exposure is more common.
PFAS
Compostable fiber bowls commonly use fluorinated coatings to repel moisture and oil. Dart has not disclosed coating chemistry, and independent lab data for this specific product is unavailable; however, the industry-wide practice and Dart's silence suggest elevated risk compared to certified PFAS-free competitors.
Source: ATSDR ↗Coating migration into fatty or warm foods
If the interior coating contains PFAS or other synthetic polymers, exposure increases when contact time is prolonged, temperatures rise, or food is oily (fats act as solvents). Cold, dry foods pose lower risk; hot or fatty foods should be avoided in this product.
Microplastic or particulate from fiber degradation
Molded fiber bowls can shed fibers or coating fragments during use, especially if the bowl is flexed, moisture-saturated, or exposed to acidic food. Risk is higher if the coating is thin or compromised; this has not been formally tested for Dart's product.
What’s reassuring
Chemical residues from processing or adhesives
Compostable fiber manufacturing may involve bleaching agents, sizing resins, or adhesives in the substrate. No recalls or public complaints specific to Dart's bowl cite chemical contamination, but full ingredient transparency is absent.
Contamination from non-food-grade recycled fiber feedstock
If Dart sources recycled paper for its bowls, residual inks, adhesives, or contaminants from previous use could theoretically transfer to food. Industry standards and FDA oversight nominally prevent this, but verification depends on Dart's supplier controls, which are not publicly disclosed.
The full breakdown
What it's made of and why it matters
Dart's compostable fiber bowls are made from plant-based molded fiber (typically bagasse, wheat straw, or recycled paper) bonded with a petroleum-free resin. The critical unknown is the grease-resistant coating applied to the interior surface, which in the compostable fiber industry commonly contains PFAS (PFAS "forever chemicals") to prevent liquids from saturating the porous fiber. Dart has not publicly disclosed the specific chemistry of this coating, making independent verification of PFAS content impossible from available sources.
The brand's record and disclosure
Dart Container is a major supplier of disposable food packaging but maintains minimal transparency on chemical formulations for its compostable lines. The company has not published a PFAS disclosure statement or committed to PFAS-free certification for this product category, unlike some competitors (e.g., Footprint, World Centric) who explicitly market PFAS-free alternatives. No recalls or regulatory actions specific to this bowl model have been recorded, but the silence on coating chemistry is a red flag in an industry where PFAS migration into food is an emerging concern.
How it compares in its category
Among compostable takeout bowls, Dart's product is priced competitively and widely available, but lags behind certified PFAS-free alternatives in transparency. Brands like World Centric and Vegware publish third-party test results showing PFAS-free coatings; Dart does not. Conventional polyethylene-coated paper bowls (non-compostable) carry similar PFAS risk, so compostability alone does not guarantee safer chemistry. For consumers prioritizing both compostability and PFAS avoidance, this product ranks lower than transparent competitors.
If you buy it
Use this bowl only for cold or room-temperature foods and dry items (salads, bakery, takeout that will not be reheated). Do not microwave or heat, as warm or oily foods may increase coating migration. These bowls are intended for single use; do not reuse or hand-wash for repurposing. If composting at home, verify your facility accepts plant-based compostable packaging, as many curbside programs reject it; industrial composting is the intended end-of-life pathway.
What we don’t know
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Dart Container has made none
Formulations change between production runs, so check the current label. How we grade.
Safer alternatives in Food Packaging
World Centric
Compostable Fiber Compost-A-Pak Containers
Fiber-based (wood pulp/molded fiber), compostable coating
Proprietary coating chemical migration
Limited concern
Moisture and microbial growth in fiber matrix
Limited concern
Coating degradation under heat or fatty foods
Moderate concern
Recycling contamination if misdisposed
Limited concern
Lower concern with documented PFAS-free commitments, though independent lab confirmation on this specific product absent.
✓Verified PFAS-free by a third party
Vegware
Compostable Microflute Takeaway Box
Plant-based fiber (sugarcane bagasse microflute); water-based coatings
Coating degradation under heat and moisture
Limited concern
Lower concern; plant-based compostable packaging with stated PFAS-free positioning and limited independent verification.
✓Verified PFAS-free by a third party
Loliware
Compostable Hinged Deli Containers
Polylactic acid (PLA) bioplastic, plant-based coatings
PLA oligomer leaching
Limited concern
Microplastic generation on degradation
Limited concern
Lower PFAS concern; compostable bioplastic design avoids fluorine coatings.
✓Verified PFAS-free by a third party
More food packaging 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.