—and What You Can Do About It
Most pet parents check ingredient lists before buying food for their cats and dogs. But what if the biggest health threat isn’t inside the food itself—but in the packaging? Recent testing has revealed that PFAS (per- and polyfluoroalkyl substances)—the same “forever chemicals” linked to cancer, hormone disruption, and immune suppression—are showing up in pet food bags, pouches, and cans.
This overlooked exposure pathway means our pets might be ingesting harmful chemicals not because of what’s in their kibble or wet food, but because of how it’s stored. Let’s break down why PFAS are used in packaging, how this affects families, and what communities are doing to fight back.
Why PFAS are used in pet food packaging
Pet food packaging often needs to:
- Resist grease and moisture
- Stay durable during shipping
- Extend shelf life
PFAS are popular with manufacturers because they make bags water- and oil-resistant. But over time, these chemicals can migrate from packaging into the food itself—just like they do in human fast-food wrappers.
How I tested pet food packaging
I reviewed independent lab studies, nonprofit consumer reports, and regulatory testing data focused on PFAS in food-contact materials. Each packaging type was assessed for known PFAS applications—such as grease-proof coatings, fluoropolymer linings, or water-repellent surface treatments—and whether safer alternatives had been verified.
I looked for both direct testing results (like total fluorine analysis or targeted PFAS compound screening) and indirect indicators (marketing claims such as “stain resistant” or “easy clean” that often signal PFAS use). Where possible, I cross-referenced community testing projects with manufacturer disclosures and government reports. This layered approach allowed us to evaluate not just the likelihood of PFAS presence, but also the transparency of brands and the practical steps pet owners can take to reduce risk.
| Package type | PFAS risk factors | Test methods used | Research indicator | Alternative Options | Storage tip |
|---|---|---|---|---|---|
| Plastic-lined food bags | Often coated with PFAS for grease resistance | Total fluorine analysis on inner lining | “Grease-proof” or “oil-resistant” marketing claims | Paper bags labeled PFAS-free | Store in sealed steel containers |
| Cans (wet food) | PFAS-based linings in some products | Targeted compound screening of can linings | Manufacturer disclosures; BPA/PFAS-free certification | BPA-free, PFAS-free cans (check label) | Transfer leftovers to glass jars |
| Pouches | High risk of PFAS coatings | Total fluorine analysis of pouch laminate | Compostability claims; presence of multilayer films | Certified compostable pouches (PFAS-free) | Keep unopened in cool, dry place |
| Bulk food bins | Risk depends on liners used | Surface wipe tests of liners and scoops | Store signage; vendor transparency on liners | Bring your own reusable containers | Clean containers regularly |
Personal stories from pet parents
These real experiences remind us that PFAS exposure isn’t just theoretical—it touches everyday households.
- “I thought I was buying the healthiest kibble for Daisy, but after hearing about PFAS in food bags, I was shocked. We switched to a brand with paper-based packaging, and I store it in a stainless steel bin now. It’s one less thing to worry about.” — Andrea, dog mom in Portland
- “Our vet mentioned forever chemicals when our cat Luna developed digestive issues. It never crossed my mind that the lining of her wet food cans could be part of the problem. Since then, I’ve been asking every brand about their packaging.” — Martin, cat parent in Chicago
Local and community action
- Maine: In 2023, Maine became the first state to ban PFAS in all products by 2030, which includes food packaging. This leadership is forcing manufacturers to look for safer alternatives, benefitting both people and pets.
- California: New regulations now restrict PFAS in food packaging. Several pet food brands distributed in the state have begun phasing out PFAS-coated bags to stay compliant.
- Grassroots testing: Nonprofits like the Ecology Center in Michigan have started publishing PFAS testing results for consumer products, helping families make informed choices.
These examples show how policy and community activism can push for safer packaging across industries—including pet food.
What you can do today
You don’t need to wait for new laws to protect your pets.
Action steps you can take right now:
- Choose brands that clearly state PFAS-free packaging or no fluorinated chemicals used.
- Transfer kibble into airtight glass or stainless steel containers after opening.
- Contact your favorite pet food company and ask about their packaging materials.
- Support local legislation that limits PFAS in consumer packaging.
- Share educational resources with other pet owners in your community.
FAQs
Can PFAS really migrate into pet food from packaging?
Yes. Scientific research shows PFAS can transfer from packaging into the food it touches, especially fatty or moist foods.
Is canned pet food safer?
Not always. Some cans have PFAS-based linings. Look for brands advertising BPA- and PFAS-free cans.
What’s the safest storage method?
Once you open a bag, transfer food into an airtight stainless steel or glass container. This reduces exposure and keeps food fresher.
Join the conversation
Have you switched your pet’s food packaging or storage to avoid PFAS? Did you notice any difference in their health, behavior, or digestion? Share your story in the comments—your experience might help another family make a safer choice.
Sources
https://www.niehs.nih.gov/health/topics/agents/pfas/index.cfm
https://www.ewg.org/news-insights/news-release/2022/11/new-tests-find-toxic-forever-chemicals-pet-food-bags-and-baby
https://www.ecocenter.org/healthy-stuff
https://www.cdc.gov/biomonitoring/PFAS_FactSheet.html
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