How to evaluate food-contact recycled PP: read FDA process limitations, match the intended use and request traceable evidence for the finished packaging.
A quotation for “food-grade recycled polypropylene” needs more than a resin data sheet. The buyer needs to know which recycling process produced the material, what feedstock it uses and which food-contact applications the supporting evidence covers. A tray for dry food, a refrigerated tub and a container reheated with its contents are different specifications.
FDA’s recycled-plastics database can help with that review. Its entries identify favorable opinions on specific recycling processes and their intended uses. A no-objection letter, or NOL, should be read within that scope, rather than treated as general approval of every recycled PP grade. FDA’s database introduction explains what the listings represent.
Read the limitations before the supplier’s headline
FDA record 433, dated 9 April 2026, illustrates why the detail matters. It concerns physically recycled PP and requires feedstock from food-contact articles that complies with applicable authorizations. Its listed uses include certain trays, containers, crates and clamshells for Food Type VIII; single-service articles; and a non-food-contact layer in multilayer packaging. These uses are limited to Conditions of Use E through G. See record 433 in the official database.
That entry is evidence about the reviewed process. It does not establish that an arbitrary supplier’s recycled PP, a new feedstock source or a hotter application falls within the same opinion.
FDA’s
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define Food Type VIII as dry solids without free fat or oil on the surface. Condition E covers room-temperature filling and storage, F refrigerated storage and G frozen storage, without thermal treatment in the container. Reheating in the container has a separate condition. An E–G listing therefore cannot, on its own, support a microwave-use claim.
Write out the actual use in the purchasing brief. “Cold food packaging” leaves room for misunderstanding; “filled without heating, refrigerated throughout distribution, no reheating in the container” is a testable requirement. Confirm the food category separately.
Build a material-to-process evidence file
Ask the proposed supplier for the complete NOL and a written explanation linking its offered grade and production site to the reviewed process. Record the recycler, process identity, feedstock specification, material grade and batch identifiers. If another manufacturer operates the process, ask for the documentation establishing that relationship and the applicable scope.
Then compare the supplied documents with the intended article. A useful review file includes:
The food types and time-temperature conditions the buyer requires.
The feedstock controls and recycling process the supplier uses.
The proposed recycled-content level and any limitations affecting it.
The final formulation, including additives, colorants and other layers.
The supplier’s compliance statement for that formulation and intended use.
The procedure for notifying changes to feedstock, processing or formulation.
These are purchasing checks, not an FDA checklist newly imposed on every buyer. They make the supplier’s claim traceable to the product being ordered.
FDA’s recycling overview explains that its review considers the source material, contamination controls, cleaning evidence and proposed conditions of use. A brochure saying “washed and filtered” does not provide the same information as a documented process review.
Check the final formulation as well as the recyclate
The recycling opinion answers a purity question about a particular process. The finished article also contains substances whose food-contact status needs to be established. FDA’s guidance on component regulatory status explains that the status of a food-contact material depends on its constituent substances and their applicable authorizations.
For a colored PP tub, for example, ask how the color concentrate and processing additives are covered for the intended use. For a multilayer tray, identify every layer and its function. Do not assume that putting virgin polymer on the food side automatically establishes an effective barrier.
FDA’s recycled-plastics chemistry guidance discusses evidence for an effective barrier under the anticipated use conditions. Its published PET barrier examples should not be transferred directly to a PP structure. Ask for support for the actual material, thickness and application.
Keep US and EU evidence separate
An FDA NOL is not an EU authorization. The European Commission’s recycled-plastics framework describes the separate rules under Regulation (EU) 2022/1616. If the finished packaging will enter both markets, request a distinct explanation of the compliance basis for each destination.
When comparing polymers, our thermoforming material-selection guide can help frame the processing requirements. Keep those requirements separate from the food-contact review. A material that forms cleanly still needs evidence for its intended contact conditions.
Run the trial against defined acceptance criteria
After the document review, qualify the offered grade in the finished article. Choose checks that reflect the job: sheet forming and trimming, seal performance, odor, color consistency, stacking, drop performance or lid fit. Agree the sampling plan and acceptance criteria before the trial.
FDA’s chemistry guidance does not assess every aspect of package performance or microbial control. Treat the production trial and hygiene controls as their own work, with named owners and records.
Give thermoforming suppliers or injection-molding suppliers the same use specification and evidence request when comparing quotes. Keep a current supplier file for each approved grade, with the application limits recorded alongside the material specification.
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