Sustainable Packaging Guide: Switching to Plastic-Free Inserts (2025)

Key Facts for Plastic-Free Insert Buyers

• Best for: cosmetics, skincare bottles, electronics accessories, gift sets, candles, food-safe secondary packaging and premium retail products.
• Main options: molded pulp inserts, paperboard inserts, corrugated inserts and fiber-based protective structures.
• Molded pulp: useful for shaped cavities and repeat production, but usually requires tooling.
• Paperboard inserts: flexible, printable and suitable for many lower-MOQ or multi-SKU packaging projects.
• Corrugated inserts: useful when stronger paper-based support is needed for heavier products.
• MOQ: from 500 pcs for many custom packaging projects, depending on insert type, structure, material and tooling requirements.
• Best practice: test inserts with the real product or a confirmed dummy sample before mass production.

Why Brands Are Reviewing Plastic-Free Inserts

Many brands are reviewing packaging inserts because customers, retailers and internal sustainability teams want less unnecessary plastic in packaging. For custom boxes, the insert is often one of the easiest areas to redesign.

A plastic-free insert should not be chosen only for appearance. It must still hold the product securely, protect it during handling and shipping, support the unboxing experience and meet the brand’s material requirements.

HS PACKFACTORY was founded in 1999 in Shenzhen, China. As a family-owned custom packaging manufacturer, we help overseas B2B buyers compare molded pulp, paperboard, corrugated and other paper-based insert options before sampling and mass production.

1. Why Replace EVA Foam or Plastic Inserts?

EVA foam and other plastic inserts can offer strong product holding and cushioning. They are still used in some fragile, heavy or high-value packaging projects.

However, many brands now prefer paper-based alternatives when product protection allows it. Paper-based inserts can reduce plastic content, improve recyclability potential in some markets and create a more consistent sustainability message.

Common reasons to review foam alternatives

• Retailer or brand guidelines require reduced plastic components.
• The product can be safely supported by paperboard, corrugated or molded pulp.
• The brand wants a more natural or paper-based unboxing experience.
• The packaging needs easier disposal communication for end users.
• The buyer wants to align inserts with FSC paper or paper-based box materials when applicable.

For insert structure options, review our custom box inserts and Custom Box Inserts Guide.

2. Molded Pulp Inserts: Best for Shaped Product Support

Molded pulp inserts are fiber-based inserts formed with custom molds. They can be made from materials such as recycled paper fiber, bagasse, bamboo fiber or other pulp blends, depending on supplier capability and project requirements.

Wet-press molded pulp can offer a smoother surface than traditional rough pulp packaging. It is often considered for cosmetics, electronics accessories, gift sets and other products that need a formed cavity.

When molded pulp inserts may work well

• The product has a fixed shape and needs a custom cavity.
• The order quantity can justify tooling and sample development.
• The brand wants a fiber-based insert with a cleaner molded look.
• The product is not too fragile for the selected pulp thickness and structure.
• The packaging team can test product fit, drop risk and surface protection before production.

Molded pulp is not automatically the best option for every project. Tooling cost, surface quality, color requirement, product tolerance and protection testing should be reviewed before approval.

For a practical transition example, review our case study on transitioning a luxury skincare line to plastic-free inserts.

3. Paperboard Inserts: Flexible and Printable

Paperboard inserts are die-cut and folded from paperboard to hold products in place. They can be simple dividers, locking tabs, raised platforms, sleeve supports or more complex engineered paper structures.

Unlike molded pulp, paperboard inserts usually do not require a molded tooling process. They are often practical for lower-MOQ projects, multiple SKUs, printed interiors and packaging that needs flexible design changes.

When paperboard inserts may work well

• The product has a simple or geometric shape.
• The buyer wants printed interior branding or matching box graphics.
• The project has multiple product sizes or frequent design changes.
• The order quantity is not high enough to justify molded pulp tooling.
• The product needs lightweight support rather than deep cushioning.

For platform-style paper supports, review our cardboard platform box inserts. For paper thickness decisions, review our Paper Weight GSM vs PT Guide.

4. Corrugated Inserts: Stronger Paper-Based Support

Corrugated inserts can be useful when the product is heavier or needs stronger paper-based support than standard paperboard can provide.

They are often used inside mailer boxes, gift sets, electronics packaging, bottle packaging and e-commerce packaging where extra stiffness or cushioning is needed.

Corrugated insert advantages

• Stronger structure than many flat paperboard inserts.
• Useful for heavier product sets or e-commerce shipping.
• Can be paired with outer corrugated mailer boxes.
• Can create air gaps and product separation inside the box.
• Often easier to revise than molded insert tooling.

For paper-based dividers and stronger interior protection, review our custom corrugated box inserts and dividers. For outer shipping and mailer structures, review our custom corrugated boxes.

5. Molded Pulp vs Paperboard vs Corrugated Inserts

Each insert type has different strengths. The best choice depends on protection needs, brand style, MOQ, tooling budget, print requirements and shipping method.

A plastic-free preference is only one part of the specification; use our packaging material and structure guide to compare product fit, presentation, shipping and protection requirements.

6. Sustainability Claims: What Buyers Should Check

Sustainability language needs to be accurate. Terms such as plastic-free, recyclable, biodegradable, compostable or eco-friendly can mean different things in different markets.

Before using these claims on packaging or marketing materials, buyers should confirm the actual material, local disposal system, certification requirements and available documentation.

Claim checks before approval

• Confirm whether the insert is fully paper-based or contains coatings, films or mixed materials.
• Ask whether FSC paper options are available when responsible paper sourcing is required.
• Check whether recyclability depends on the destination market and local recycling system.
• Avoid using biodegradable or compostable claims unless the material and target market support them.
• Keep material specifications and supplier documentation for brand and retailer review.

For broader sustainability planning, review our FSC Certified Packaging Guide and Luxury Packaging Trends 2025 Guide.

7. How to Switch From Foam to Paper-Based Inserts

Switching to plastic-free inserts should start with the product, not the material. Paper-based materials behave differently from foam, so the insert structure must be engineered around the product’s real size, weight and fragile points.

Before moving to a plastic-free option, review our guide to choosing inserts for product protection so the material direction also matches product movement, shipping conditions, and presentation needs.

Practical switching process

1. Confirm the product: send product size, weight, shape, fragile points and packing direction.
2. Define the goal: clarify whether the priority is reduced plastic, better recyclability potential, premium appearance or cost control.
3. Choose insert direction: compare molded pulp, paperboard, corrugated or hybrid paper-based structures.
4. Build a dieline or molded design: review tolerance, product holding and assembly method.
5. Make a sample: test fit, removal, unboxing sequence and protection before mass production.
6. Confirm documentation: check material specifications and sustainability claims before using them in marketing.

For sample planning, review our Custom Packaging Samples Guide. For fragrance and beauty sets, see Fragrance Inserts for Custom Printed Boxes.

Buyer Checklist Before Choosing Plastic-Free Inserts

Use this checklist before requesting a quote or approving a plastic-free insert sample. It helps compare material direction, product protection, tooling, cost and sustainability claims more clearly.

Quality Control for Plastic-Free Inserts

Insert quality control should focus on product fit, protection, assembly and surface appearance. A sustainable material direction is only useful if the insert still performs correctly.

Before mass production, buyers should test the insert with the real product or a confirmed dummy sample whenever possible.

• Check product fit, holding strength and removal experience.
• Review whether the product moves during shaking or shipping simulation.
• Check edges, dust, paper fibers, surface marks and product contact areas.
• Test whether the insert works with the outer box and packing method.
• Confirm color, printing and surface appearance if the insert is visible during unboxing.
• Keep approved samples as production and repeat-order references.

Why Work With HS PACKFACTORY?

Switching to plastic-free inserts requires more than choosing a new material. The insert must fit the product, support protection, match the box structure and stay practical for sampling, production and shipping.

• Founded in 1999: long-term experience in custom paper packaging manufacturing for overseas B2B buyers.
• Family-owned factory: stable communication, practical engineering support and factory-direct pricing.
• Located in Shenzhen, China: convenient access to paper materials, printing, finishing, insert structures and export logistics.
• Free dieline support: our packaging engineers can review product size, insert layout, paper structure and box fit before sampling.
• Fast sampling: samples usually take 3–5 days for many custom packaging projects, depending on structure, material, tooling and finish requirements.
• Complete packaging support: inserts, rigid boxes, folding cartons, corrugated boxes, paper bags, labels, manuals and display boxes.