PFAS75/ 100Excellent
Overall53/ 100Good

Open Farm · Pet Food Bags

Farmstead Duck & Ancient Grains Dry Dog Food

Excellent

Skip; food products rarely disclose PFAS in packaging.

Verdict · Buy with careDry kibble with no established safety recalls, but PFAS packaging disclosure absent and ingredient sourcing opaque; verify storage conditions and monitor pet response.

Open Farm does not disclose PFAS information for this dog food. Dry kibble formulations and packaging coatings may contain PFAS; no third-party testing data available.

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We flunk more products than we pass. This one earned its grade. How we grade

Material

Dry kibble with duck and grains

Brand disclosure

Brand is silent on PFAS

Lab data

No public lab test

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What Farmstead Duck & Ancient Dry Dog Food is made of, ingredients and materials

This product is extruded dry kibble formulated with duck protein and grain (likely wheat, barley, or oats based on 'ancient grains' positioning). Dry pet foods are typically manufactured at high temperatures (steam-pressurized extrusion around 140, 180°C), which can concentrate mineral and micronutrient profiles but also creates risk for nutrient degradation and potential mold or bacterial contamination during storage if moisture ingress occurs. The grain component introduces potential for mycotoxin contamination (aflatoxin from corn or grains stored in warm, humid conditions), though major brands typically test for this.

What’s concerning

♾️

Category baseline

The starting point for this type of product, before anything specific to this product is counted.

90/ 100
♾️

No PFAS disclosure

No public statement from the brand about PFAS in this product.

85/ 100
⚠️

Mycotoxin contamination (aflatoxin)

Grain-based kibbles can accumulate aflatoxins if grains were stored in warm, humid conditions before processing. Open Farm does not publicly disclose mycotoxin testing protocols; AAFCO requires compliance but third-party verification is not standard for this brand.

70/ 100
⚠️

Bacterial contamination (Salmonella, E. coli)

Dry kibble is not sterilized and can harbor pathogens if manufacturing or storage hygiene fails. No recent recalls for Open Farm kibbles are on public record, but the risk exists in all raw-material-based dry pet foods, especially those with animal proteins.

70/ 100
⚠️

Nutrient deficiency or imbalance

Open Farm does not publish full nutrient profiles or bioavailability testing; grain extrusion can reduce mineral absorption. AAFCO compliance is claimed but third-party verification of taurine, calcium-phosphorus ratios, or micronutrient stability over shelf life is not disclosed.

70/ 100
♾️

PFAS

PFAS in pet food packaging is not reported for this specific product, but dry kibble bags typically use polymer-coated paper or plastic liners that may contain PFAS. Open Farm does not disclose packaging materials or migration testing. Graded separately; see PFAS verdict.

Source, ATSDR ↗
45/ 100

What’s reassuring

⛏️

Heavy metals

Duck sourcing and origin (farmed vs. wild, region) are not disclosed. If sourced from contaminated water or feed sources, cadmium or lead accumulation in poultry tissue is theoretically possible but not reported for this brand or product.

Source, FDA ↗
95/ 100

How is this PFAS grade calculated?

The brand's record and disclosure

Open Farm is a Canadian-owned brand owned by Petropics; it markets 'natural' and 'human-grade' ingredients but does not publicly disclose third-party testing results, PFAS levels in packaging, or sourcing transparency for its duck or grains. No major recalls specific to this product line appear in FDA or CFIA databases as of current public record. The brand has not published ingredient-traceability or manufacturing certifications (e.g., AAFCO compliance statements are standard but detailed sourcing audits are not disclosed on their website).

How it compares in its category

Premium dry kibbles with named proteins (duck, chicken, fish) are common; Open Farm's position is mid-to-premium. Comparable brands (Acana, Orijen, Primal) similarly do not disclose PFAS packaging data; dry kibbles as a category have lower microplastic risk than wet foods or treats in pouches. The grain inclusion is less novel than grain-free claims but avoids the aortic-disease concern tied to legume-heavy diets in dogs. No independent lab data on heavy metals or mycotoxins for this specific formulation is publicly available.

If you buy it

Store in a cool, dry location (below 21°C and under 60% humidity) in an airtight container after opening to prevent moisture ingress and mold growth. Do not transfer to containers with prior pesticide or chemical residue. Monitor your pet for digestive upset, itching, or lethargy over the first 2, 4 weeks, as individual sensitivities to duck or grain are not rare. Replace opened bags after 4, 6 weeks if not fully consumed, or transfer to a sealed container to prevent rancidity and contamination.

What is not known about PFAS in this product?

Basis
Model estimate, 45% confidence, not a lab result
Lab test
None on record for this exact product
Brand statement
Open Farm has made none

Formulations change between production runs, so check the current label. How we grade.

What are the PFAS-free alternatives to Farmstead Duck & Ancient Grains Dry Dog Food?

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  • Rancidity and oxidative degradation of fats

2 hazards checked on this product, all on its full breakdown.

Milk Bone Mini Flavor Snacks Dog Treats

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Milk Bone Mini Flavor Snacks Dog Treats

85ExcellentPFAS grade
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  • Mold and mycotoxin growth

3 hazards checked on this product, all on its full breakdown.

MILK-BONE ORIGINAL DOG BISCUITS

Milk-Bone

ORIGINAL DOG BISCUITS

85ExcellentPFAS grade
  • grain flour, meat meal, binders, standard dog biscuit
  • We found no PFAS statement from the brand
  • Rancidity and fat oxidation

2 hazards checked on this product, all on its full breakdown.

More pet food bags 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.