BUYER GUIDE / INDUSTRIAL

Thermoformed Packaging Recycling and Sustainability Considerations

Recyclability of thermoformed packaging depends on the resin, whether the package is mono-material or multi-material, how it is labelled, and whether the local recycling infrastructure can handle it. Designing for recyclability means choosing materials that can be sorted and reprocessed in the target market, avoiding incompatible multi-layer structures, and labelling according to the applicable system.

Published and updated: 2026-08-25

Content author: Wenzhou Tonghou Plastic Products Co., Ltd.

04 / ENGINEERING NOTE

Material choice is the first lever

The resin determines whether the package can enter the recycling stream at all in a given market.

Common thermoforming resins like PET, PP and PS have different recycling acceptance rates across markets.
The destination market matters: a resin widely recycled in one country may not be accepted in another.
Confirm the recycling infrastructure in the target market before specifying material for sustainability reasons.

05 / ENGINEERING NOTE

Mono-material design simplifies recycling

Every additional material in the package creates a sorting and reprocessing barrier.

A mono-material tray (one resin) is easier to sort and recycle than a multi-layer or multi-material construction.
Adhesives, labels, laminated films and foreign inserts can all reduce recyclability even if the base tray is recyclable.
Design for recycling means minimising material diversity, not just choosing a recyclable resin.

06 / ENGINEERING NOTE

Labels and claims must be specific

Vague sustainability language is increasingly regulated and risks misleading buyers.

Use the applicable resin identification code or labelling system for the target market.
State specifically what is recyclable: the tray material, the label, or both, and under which program.
Avoid generic terms like eco-friendly or green without specifying what they mean for this package.

Applications

Consumer-facing retail packaging
Food and mooncake inner trays
Industrial trays with sustainability targets

Selection criteria

Resin recyclability in the target market
Mono-material vs multi-material construction
Labels, adhesives and additives that affect sorting
Industry-specific recycling or take-back programs

Pre-production validation

Sustainability claims must be specific: state the resin, whether the package is mono-material, the labelling system used, and any industry program it participates in. Avoid vague claims. Verify the recycling infrastructure in the destination market before claiming recyclability.

04 / DECISION MATRIX

Buyer decision table

Sustainability factor	What to consider
Material	Resin recyclability in the destination market infrastructure
Structure	Mono-material is easier to recycle than multi-layer or multi-material
Labelling	Resin identification code or equivalent system per market
Programs	Industry-specific take-back or closed-loop programs where applicable

05 / BUYER QUESTIONS

Common buyer questions

01Is every PP tray recyclable?

PP is recyclable in many markets, but acceptance depends on the local infrastructure. Confirm the destination market before claiming recyclability.

02What makes a package hard to recycle?

Multi-material construction, incompatible adhesives or laminated films, and labels that do not separate from the base material during sorting.

03What is a resin identification code?

A numeric or symbolic system identifying the plastic resin, used by sorting facilities to separate materials. The specific system varies by market.

04Can I claim sustainability for a tray?

Only with specifics: name the resin, state whether the package is mono-material, identify the labelling system, and reference any applicable program. Avoid vague claims.

06 / SOURCE BOUNDARY

Official references

These sources define terminology, testing or acceptance methods. Citing a standard does not claim Tonghou certification and does not replace project-specific validation.

U.S. FDA — Food Types & Conditions of Use for Food Contact Substances

Reference scope：Reference for defining the food type and actual temperature or storage condition; it does not certify a finished tray.