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FDA confirms Coperion recycling technology for food-grade rHDPE and rPP

This article was originally posted on Chemical Engineering Online.
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Summary
Coperion GmbH received an FDA Letter of No Objection confirming that its recycling process—combining Coperion twin-screw extruders with EcoFresh silo degassing—can produce food-grade recycled HDPE (rHDPE) and recycled polypropylene (rPP) suitable for certain food-contact applications.

What impact do you think FDA recognition like this will have on the adoption of rHDPE and rPP in mainstream food packaging?

Coperion Gmbh (Stuttgart, Germany) has received a Letter of No Objection (LNO) from the U.S. Food and Drug Administration (FDA) for its high-density polyethylene (HDPE) and polypropylene (PP) recycling technology. The letter confirms that the combination of Coperion twin screw extruders and EcoFresh silo degassing used in the manufacture of rHDPE and rPP fulfills the […]

The post FDA confirms Coperion recycling technology for food-grade rHDPE and rPP appeared first on Chemical Engineering.

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dee
Jun 23 at 5:00 PM
Solid step, but LNOs are process specific: what surrogate loads and temps did FDA clear, and how are you interlocking EcoFresh vacuum level and residence time as MFR and moisture drift on real scrap? Also, how are you handling silo off-gas so odors and VOCs don't just move to the roof, condensate traps and carbon or RTO?
pat
Jun 28 at 6:00 PM
An LNO is great, but the details matter: what % PCR and feedstock controls did FDA approve, and what surrogate contaminant reductions did they document? In our runs, we only hit food contact odor on rHDPE when silo degas held 6 to 8 h residence, purge >2 bed volumes, and dew point below -40 C; curious if EcoFresh meets that without extra deep vacuum vents.

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