A fast-growing pet brand hit a wall scaling its subscription boxes — the plastic trays kept the kibble fresh, but the "eco" promise on the label no longer matched what was inside the box. At biopackbox, our belief is unchanged — pet owners read the box before they trust the brand. Here's how molded pulp became the packaging of choice for global pet brands in 2026.
Why Pet Brands Are Switching to Molded Pulp
Pet owners now apply the same sustainability standards to their animals' packaging that they apply to their own.
| Driver | Packaging Implication |
|---|---|
| Plastic-free demand | Replace PET trays and foam |
| Subscription scale | Stronger, stackable trays |
| Premium positioning | Craft, fiber-based look |
| Retail shelf appeal | Recyclable claims on-pack |
Data: The U.S. FDA regulates pet food and its food-contact packaging, and the U.S. EPA lists paper and paperboard as readily recyclable — so molded pulp pet packaging sits at the intersection of food-contact compliance and end-of-life recyclability.
Insight: The pet packaging shift mirrors human food packaging five years ago — sustainability demand moves downstream fast, and brands that standardize on molded pulp now avoid a costly retrofit later.
Source: U.S. FDA — Pet Food (2023); U.S. EPA (2023)
Molded Pulp vs Plastic Tray and Foam
Pet packaging has long relied on plastic trays, foam cushions, and poly film. Molded pulp replaces the rigid and cushioning layers in one material.
| Attribute | Plastic Tray | Molded Pulp |
|---|---|---|
| Material | PET/PS | Recycled fiber |
| Crush resistance | Moderate | High (engineered ribs) |
| Moisture handling | Natively resistant | Barrier-coated |
| End-of-life | Landfill | Recyclable/compostable |
| Cost at scale | Stable | Competitive on volume |
Data: Molded pulp trays, dividers, and end-caps are engineered with ribs and nesting geometry for stacking strength and drop protection, so a multi-pack of pet food survives the same transit stress as a plastic tray — while eliminating the plastic component from the bill of materials.
Insight: The switch is a supply-chain simplification: one recyclable material replaces tray plus foam, and the crush-resistance engineering means protection does not have to be sacrificed for sustainability.
Source: biopackbox packaging engineering guidance (2026)
Food Contact and Moisture Barriers
The barrier decision separates dry from wet products. For related guidance, see our molded pulp food packaging compliance guide and molded pulp protective inserts guide.
- Dry food/treats — uncoated or lightly coated pulp.
- Wet/greasy food — food-grade barrier or inner liner.
- Litter and non-food — no barrier needed.
- Migration testing — verify food-contact grades.
Data: The U.S. FDA's food-contact-substance framework governs the coatings applied to fiber packaging, and molded pulp for food use requires a compliant barrier for wet or greasy products — whereas dry treats and non-food items like litter can ship in uncoated pulp.
Insight: Barrier selection is a product-fit decision, not a guess — dry products need less, wet products need a certified coating, and choosing correctly keeps the package both compliant and cost-efficient.
Source: U.S. FDA — Food Contact Substances (2023)
The Bottom Line
Molded pulp gives pet brands a plastic-free, crush-resistant, recyclable package for food, treats, and litter — with a food-grade barrier only where the product needs it. Source for recycled-fiber content, verify migration testing, and put the plastic reduction on-pack.
Pet owners read the box before they trust the brand — make it a box they want to see.