Christiani highlights the simplified assessment of hot-melt adhesives: “In addition, advances in knowledge have enabled the assessment rules for hot-melt applications in paper packaging to be significantly simplified.”
The procedure for testing the light transmission of glass packaging has also changed. Christiani explains: “Another important technical change concerns the DfR criterion ‘optical transmission’ for glass packaging; the absolute threshold has been removed and the method changed to a comparative measurement.”
According to Thielen, further distinctions concern, for example, PVOH coatings on certain PET packaging. “The specific packaging structure therefore remains decisive,” says Thielen.
Recyclability: The Recoverable Material Content Is Decisive
According to the minimum standard, packaging recyclability is determined not by what appears theoretically recyclable, but by the proportion that can actually be recovered as valuable material during recycling. “The paper or plastic content alone does not provide a complete result. What matters is the proportion of valuable material that can be recovered through the respective recycling route and any losses or incompatibilities that occur,” Thielen explains. Equally important is the question of what exactly is being assessed. As a general rule, the minimum standard considers the entire packaging, including its integrated components. “The fact that a component can be removed by hand is not sufficient on its own to justify a separate assessment,” says Thielen. The current revision also requires a clear understanding of the yellow category: “conditionally compatible” does not automatically mean “countable as valuable material”.
As the ZSVR emphasises, the uniform assessment method is intended to prevent individual materials from being favoured or disadvantaged.
Differences between materials are taken into account through the respective design parameters and actual sorting and recovery practices, Sunderdiek explains. The method also accommodates new materials and material combinations, provided their recyclability is demonstrated accordingly.
PPWR: Clarity Needed on the Assessment of Recycling Infrastructure
Christiani also sees the minimum standard as a tool for improving packaging design: the assessment method reveals the causes of qualitative and quantitative shortcomings. He therefore sees the main need for further action in the economic framework: “There is therefore no need for revised or additional standards, but simply for the implementation of effective, competitively neutral economic incentive schemes to initiate or accelerate the transition to recycling-friendly packaging solutions.”
For the next revision, Thielen primarily wants early clarity on how existing recycling infrastructure will be assessed at European level. This particularly concerns “recyclability at scale”, for example for small-format PP films and PET trays.
These types of packaging are already well covered by the minimum standard. However, their future assessment at European level remains insufficiently clear. “The minimum standard and the requirements of the PPWR should be aligned as early as possible,” Thielen urges.
For companies, this is a matter of planning certainty: “Companies are making decisions about packaging structures and investing in their development today. To do so, they need reliable guidance on how existing sorting and recycling infrastructure will be taken into account in future and what this means for their packaging.”
Christiani is also looking ahead to the European requirements: “Next year, the draft delegated act under Article 6 of the PPWR will be at the centre of technical and political discussions.” When the minimum standard is updated in 2027, its categories for recycling-friendly packaging design may need to be adapted to the future European method for determining recyclability performance grades. According to Christiani, this is also about “representing the interests of those companies that have already optimised their packaging according to objective criteria”.