Royal Canin Health Nutrition Medium Adult Dry Dog Food
Lower risk, but Royal Canin makes no PFAS disclosure on packaging materials.
Royal Canin doesn't publicly disclose PFAS information for this dry dog food's packaging. The product uses a standard multi-layer kraft paper bag typical of pet food, materials not inherently linked to PFAS in dry-goods applications. No third-party testing or brand commitment to PFAS-free sourcing is visible.
We flunk more products than we pass. This one earned its grade. How we grade
Material
kraft/paper bag with standard polymer liner
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Moisture barrier integrity degradation
Over time (12+ months), polymer liners can develop micro-perforations or seam separation, allowing humidity ingress and kibble spoilage. This is a food-quality issue rather than a chemical safety hazard, but degraded bags should be discarded.
Thermal degradation of polymer liner (if heated)
Exposing sealed bags to sustained temperatures above 140F (60C) can cause polyethylene or polypropylene to soften and may release trace monomers. Unlikely in normal home storage but can occur if bags are left in cars, attics, or near heaters during winter.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Polymer liner off-gassing (VOC/odor)
No published cases of volatile organic compound emissions from polyethylene or polypropylene liners in sealed pet food bags at room temperature. Off-gassing is negligible in intact, cool-stored bags.
Ink or adhesive migration from printed paper exterior
Royal Canin uses food-contact-approved inks and adhesives on the exterior kraft layer; no direct contact occurs between printing and kibble due to the inner polymer barrier. No reported contamination cases.
Heavy metals
Royal Canin conducts ingredient testing for contaminants including heavy metals; no public findings of lead, cadmium, or arsenic in this product line. This is a formulation control issue, not a packaging hazard.
Source, FDA ↗The full breakdown
What it's made of and why it matters
Royal Canin Medium Adult bags use kraft paper as the outer layer with a standard polyethylene or polypropylene polymer liner inside, a common industry construction. The liner creates a moisture barrier to protect kibble from humidity and oxidation, while the paper exterior provides structural rigidity. This two-layer design is chemically inert under normal storage conditions; neither kraft nor standard polyolefins leach into dry kibble at room temperature. The food itself does not come into direct contact with the polymer layer except at the bag seams.
The brand's record and disclosure
Royal Canin, owned by Mars Petcare, maintains ISO 9001 quality certification and conducts third-party ingredient audits, though it does not publish detailed packaging material safety data sheets to consumers. The brand has no widely documented recalls specifically tied to packaging contamination or chemical migration in this product line. However, Royal Canin remains silent on PFAS use in bag manufacturing and does not offer voluntary packaging transparency statements, which is typical for the pet food industry but leaves uncertainty about per- and polyfluoroalkyl compound exposure from the barrier layer.
How it compares in its category
Pet food bags across the industry (Purina, Hill's, Iams) use nearly identical kraft-polymer laminate construction and share the same disclosure gaps around PFAS and barrier chemicals. Royal Canin's bags do not show notably higher or lower PFAS concern than mainstream competitors in material terms. Brands offering organic or grain-free formulas typically use the same packaging materials, so switching formulas does not reduce packaging-related chemical exposure. Premium boutique brands occasionally use paper-only bags without polymer liners, but this eliminates the moisture barrier and increases kibble degradation risk.
If you buy it
Store bags in a cool, dry place away from direct sunlight and extreme heat; polymer liners can soften above 140F, though this is unlikely in typical home storage. Once opened, transfer kibble to a sealed glass or food-grade plastic container to prevent rancidity and limit continued polymer exposure from the original bag. Discard bags after 6-8 weeks of opening, as kibble fat oxidation accelerates once moisture enters. Do not microwave or heat the bag itself, and keep it away from direct flame or heating elements.
What we don’t know
- Basis
- Model estimate, 62% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Royal Canin has made none
Formulations change between production runs, so check the current label. How we grade.
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.