Royal Canin Size Health Nutrition Large Breed Adult Dry Dog Food
Lower PFAS risk for the bag itself; no reason for concern unless Royal Canin uses fluorochemical internal coatings.
Royal Canin's dry dog food comes in a standard paper and cardboard bag typical of the pet food industry. No public disclosure of PFAS-based treatments or coatings is available. Dry pet food bags are lower-risk for PFAS than moisture-barrier or grease-resistant packaging.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Paper/cardboard bag (standard dry pet food packaging)
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 coating composition and migration
The internal plastic coating that protects kibble from moisture is not disclosed by Royal Canin. Standard polyethylene or polypropylene coatings are low-risk, but specific formulation and migration potential into kibble are unknown without material safety data sheets.
Mold and mycotoxin contamination if bag integrity fails
Pet food bags with damaged seals or moisture ingress can develop mold, producing mycotoxins harmful to dogs. This is a category-wide risk, not specific to Royal Canin, but proper storage and prompt transfer to airtight containers mitigates it.
Cardboard recycled fiber contaminants (printing inks, legacy chemicals)
Recycled cardboard in pet food bags may contain trace residues of printing inks or legacy processing chemicals. Food-contact cardboard is regulated, but specifics of Royal Canin's sourcing are not publicly detailed. Risk is low for kibble but theoretically higher if cardboard directly contacts food.
Oxidation and nutrient loss if bag seal degrades over time
Even intact bags can gradually lose seal integrity with age, allowing oxygen ingress. This degrades fats and fat-soluble vitamins (A, D, E) in the kibble, reducing nutritional value rather than creating acute toxicity. Shelf life is typically 12-18 months from manufacture.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
AAFCO-compliant dog foods are required to use mineral sources within specified limits. Royal Canin, as a veterinary-grade brand, is unlikely to source contaminated mineral premixes, and no public recalls for heavy metals have been issued for this product line.
Source, FDA ↗The full breakdown
What it's made of and why it matters
Royal Canin Large Breed Adult comes in a multi-ply paper and cardboard bag typical of premium dry pet food packaging. The bag interior is likely coated with a moisture-barrier film (often polyethylene or similar plastic laminate) to protect kibble from humidity and oxidation. This coating prevents ingredient degradation and pest entry, which directly affects food safety. The cardboard exterior is recyclable, though the plastic-paper laminate means the entire bag is usually landfill-bound.
The brand's record and disclosure
Royal Canin, owned by Mars Petcare, maintains published quality standards and sources ingredients through established supply chains. The company does not prominently disclose bag coating materials or PFAS testing status on consumer-facing documents. However, Royal Canin has not faced major recalls related to packaging contamination in recent years. The brand is known for veterinary-grade formulations and relatively transparent ingredient labeling, though packaging transparency lags behind disclosure of food contents.
How it compares in its category
Most premium dry dog foods (Purina Pro Plan, Hill's Science Diet, Acana) use nearly identical paper-laminate bag construction. Royal Canin's bag design is middle-of-the-road for the category, not minimalist like some smaller brands, not over-engineered. The main differentiator is that Royal Canin uses sized and breed-specific formulations, so the packaging is a secondary consideration compared to nutritional fit. Compared to budget brands, the bag material quality is slightly better, reducing kibble staleness risk.
If you buy it
Store unopened bags in a cool, dry place away from direct sunlight and moisture to prevent mold or pest entry. Once opened, transfer kibble to an airtight container (glass or BPA-free plastic) within 2-3 weeks; exposed kibble oxidizes and loses nutritional value. Do not microwave or heat the bag itself. Replace the bag if you notice any tears, odors, or visible mold, as these signal barrier failure and potential contamination.
What we don’t know
- Basis
- Model estimate, 72% 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.