Open Farm Review, Is Open Farm Non-Toxic?
Open Farm averages 75 out of 100 on PFAS Authority's PFAS and toxin screen across the 6 Open Farm products graded as of November 2026, and all 6 reach its 70 point pass mark.
Open Farm grades Excellent on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
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.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Does Open Farm have PFAS, by category
Which Open Farm products are PFAS-free? Good or better, best-graded first
- kibble (meat, grains, typical dry food ingredients)
- We found no PFAS statement from the brand
- Lead. Rendered meat products and mineral supplements in pet food can accumulate metals from feed sources, but…
4 hazards checked on this product, all on its full breakdown.
- Dry kibble in paper/cardboard bag
- We found no PFAS statement from the brand
- Mycotoxin (aflatoxin) contamination. Dry kibble is vulnerable to aflatoxin-producing molds if stored…
3 hazards checked on this product, all on its full breakdown.
- Dry kibble with duck and grains
- We found no PFAS statement from the brand
- Mycotoxin contamination (aflatoxin). Grain-based kibbles can accumulate aflatoxins if grains were stored in…
4 hazards checked on this product, all on its full breakdown.
- kibble and grain ingredients in paper/cardboard bag
- We found no PFAS statement from the brand
- Microbial contamination (mold, salmonella, E. coli). Dry kibble is shelf-stable, but cardboard bags can allow…
4 hazards checked on this product, all on its full breakdown.
- paper/cardboard bag with inner polymer coating (likely polyethylene)
- We found no PFAS statement from the brand
- Polymer liner degradation and microplastic shedding. Over extended storage (6-12 months), polyethylene liners…
3 hazards checked on this product, all on its full breakdown.
- Paper/cardboard bag with plastic lining (typical dry pet food packaging)
- We found no PFAS statement from the brand
- Plastic migration from bag lining. Standard polyethylene or polypropylene bag liners can leach trace…
2 hazards checked on this product, all on its full breakdown.
What to buy instead Good or better, in the categories Open Farm sells
- Wheat flour, meat by-products, soy lecithin, standard binders and preservatives
- We found no PFAS statement from the brand
- Rancidity and oxidative degradation of fats
2 hazards checked on this product, all on its full breakdown.
- Grain, meat, fat, vegetable oil based ingredients
- We found no PFAS statement from the brand
- Mold and mycotoxin growth
3 hazards checked on this product, all on its full breakdown.
- 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.
Open Farm and PFAS, common questions
- Does Open Farm have PFAS?
- Open Farm averages 75 out of 100 on PFAS Authority's PFAS and toxin screen across the 6 Open Farm products graded as of November 2026, and all 6 reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Open Farm non-toxic?
- Homestead Turkey & Ancient Grains Dry Dog Food is the highest-graded Open Farm product we have scored, at 85/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Open Farm products are lower concern for PFAS?
- The highest-graded Open Farm products we have scored are Homestead Turkey & Ancient Grains Dry Dog Food, Ancient Grains Puppy Dry Dog Food, Farmstead Duck & Ancient Grains Dry Dog Food. That is our model-based estimate from materials and public disclosure, not a lab test.
Every grade uses the same public rubric. How grades work →