Fertile Ground Fiber Bowls
Water-repellent treatment chemistry not stated, though brand claims PFAS-free.
The brand states these bowls are PFAS-free, an unverified claim. The molded fiber bowls have a water-repellent treatment whose chemistry is not stated. Cradle to Cradle and FSC certifications are listed.
Brand says: “The brand has announced PFAS-free compostable food containers.”
The better-graded swap
Green Wave International
Evolution 12 oz Sugarcane Bowl
85/100 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
Molded fiber (sugarcane bagasse, wood pulp) with water-based coatings
Brand disclosure
Brand claims PFAS-free
Lab data
No public lab test
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What Fertile Ground Fiber Bowls is made of, ingredients and materials
Fertile Ground Fiber Bowls are molded from sugarcane bagasse (fibrous byproduct of sugar extraction) and wood pulp, materials that are biodegradable and compostable under industrial conditions. The bowls carry water-based coatings to provide grease and moisture resistance, necessary for food contact safety and structural integrity during use. The brand states these coatings are PFAS-free, but the specific chemistry of the water-repellent treatment is not disclosed in public product literature, which limits independent verification of the claim.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Unidentified water-repellent coating chemistry
Brand claims PFAS-free status but has not disclosed the specific chemistry of the water-based coating. While PFAS-free coatings exist, alternative water-repellent chemistries (e.g., waxes, siloxanes, other fluorine-free polymers) are not detailed in public materials, preventing full assessment of safety.
Coating degradation and fiber exposure
Molded fiber bowls with surface coatings can degrade with heat, abrasion, or extended moisture exposure, potentially releasing small fiber particles into food. Degraded coatings also lose water-repellent function, allowing liquid absorption and possible mold growth in storage.
Mold or microbial growth if stored wet
Fiber-based materials retain moisture if not fully dried. Poor storage conditions or prolonged dampness can support mold colonization, which may produce allergens or mycotoxins if the bowls contact food.
What’s reassuring
Brand-stated PFAS-free
The brand states this product is PFAS-free. We have not verified the claim.
Heavy metals
No public record of heavy metal contamination in Fertile Ground bowls. Molded fiber products typically use minimal pigmentation, but if dyes are present, they should comply with FDA food-contact standards; verification requires third-party testing not yet disclosed.
Source, FDA ↗Formaldehyde / VOCs
Industrial molded fiber production may use formaldehyde-based binders or sizing. The brand has not publicly disclosed binder chemistry for these bowls. Food-contact exposure is likely minimal if coatings fully seal the fiber, but off-gassing risk is not quantified.
Source, ATSDR ↗How is this PFAS grade calculated?
The brand's record and disclosure
The brand is known in the compostable foodservice industry for sustainability marketing and has made explicit PFAS-free commitments in corporate statements. However, the company has not published third-party testing results or full ingredient transparency for coatings on individual product lines. No major safety recalls or contamination incidents are on public record for molded fiber bowls. The PFAS-free claim appears sincere but rests on manufacturer assertion rather than independent certification.
How it compares in its category
Molded fiber bowls like this one have lower concern for microplastic and BPA compared to polystyrene or plastic-lined paper. They are also preferable to ceramic bowls with glazes that may contain lead or cadmium, and to aluminum cookware with leaching risks. Most competitors in the compostable bowl market similarly rely on water-based or coating systems of undisclosed chemistry, making the brand's stated PFAS-free approach a modest differentiator, though not uniquely transparent.
If you buy it
Use these bowls for cold or lukewarm foods and beverages; avoid prolonged contact with hot liquids or microwave use, as heat may degrade the fiber matrix and compromise coating integrity. Check bowls before use for visible degradation, mold growth, or odor, especially if stored in damp conditions. Replace bowls after significant wear or staining that suggests coating breakdown. Compost in industrial facilities where available; home composting may be slow due to the coating.
What is not known about PFAS in this product?
- Basis
- Model estimate, 82% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Fertile Ground Fiber Bowls?
Bridge-Gate 12 oz. White Bagasse Bowl (1000 per Case)
- bagasse (sugarcane fiber), uncoated
- A third party reports verifying it as PFAS-free
- Mold or microbial growth during storage or use
3 hazards checked on this product, all on its full breakdown.
- Kraft molded fiber (uncoated or minimal treatment)
- A third party reports verifying it as PFAS-free
- Moisture absorption and microbial growth
3 hazards checked on this product, all on its full breakdown.
- sugarcane fiber, Kraft paper coating
- We found no PFAS statement from the brand
- Kraft paper coating migration (processing chemicals, sizing agents)
4 hazards checked on this product, all on its full breakdown.
More compostable bowls 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.