The Composite Packaging Trap: Why Paper-Based Isn't Always Exempt

Many brand owners assume paper-based packaging is the safe sustainability bet under PPWR. The 5% rule for composite packaging breaks that assumption — and creates redesign pressure for HORECA, beverages, and food service.  

TL;DR:
Under PPWR, composite packaging containing more than 5% plastic content by weight is treated as plastic packaging, falling under Article 25 single-use plastic bans (Annex V) starting January 1, 2030. 

Paper coffee cups with plastic linings, paper-based food trays with plastic windows, paper-based beverage cartons, and many "paper-based" food service items often exceed the 5% threshold. 

For senior leaders in HORECA, beverages, and food service categories, the 5% rule converts "sustainability story packaging" into 2030 redesign pressure. The window to redesign and re-source is already closing. 

Why the 5% rule catches brand owners off guard?

Among the PPWR provisions that surprise senior leaders, the 5% rule for composite packaging causes the most reaction. The reason is that it directly contradicts the sustainability narrative many brands have built around paper-based packaging — a narrative that, until PPWR, was strategically sound. 

Across the past five years, paper-based packaging has been positioned as the sustainability solution for everything from coffee cups to food trays to beverage cartons. The reasoning was straightforward: paper is renewable, biodegradable, and consumer-recognized as environmentally friendly. Brands invested in this messaging, retailers featured it in their sustainability commitments, and consumers responded positively. 

PPWR's 5% rule does not invalidate the sustainability story. But it does create a regulatory boundary that most paper-based packaging crosses without anyone realizing it — turning packaging that was strategically positioned as a sustainability win into a 2030 redesign liability.

What is the PPWR 5% rule for composite packaging?    

The 5% rule appears in PPWR's framework for classifying composite materials. Under PPWR, packaging that combines materials — paper with a plastic lining, paper with a plastic window, glass with a plastic seal, metal with a plastic coating — must be classified by its dominant material for some purposes and by its plastic content for others. 

Specifically, when composite packaging contains more than 5% plastic by weight, the relevant PPWR provisions treat it as plastic packaging for the purposes of Article 25 single-use plastic bans. The 5% threshold is calculated on a weight basis across the entire packaging unit. 

This means a paper coffee cup with a polyethylene lining — typical construction across the industry — generally exceeds 5% plastic by weight when the lining is included. A paper-based food tray with a plastic film cover or window typically exceeds 5%. Paper-based beverage cartons (Tetra-style) that combine paper with thin polyethylene and aluminum layers often exceed 5% just from the polyethylene component. 

From January 1, 2030, when these items appear on the Annex V list of banned single-use plastic packaging formats, they cannot be placed on the EU market — regardless of their paper-based marketing positioning. 

Source: PPWR Regulation (EU) 2025/40, Article 25, Annex V. Commission Notice C(2026) 2151 final, 30 March 2026, clarification on composite material classification. SUP Directive (EU) 2019/904, cross-reference for definition consistency. 

Why does paper-based packaging often exceed the 5% threshold?

The 5% threshold is significant because the functional reasons for combining paper with plastic are difficult to engineer around without losing the functionality that made the packaging viable in the first place. 

Coffee cups need a moisture barrier to hold hot liquid without softening. The cheapest, lightest, most reliable barrier is a polyethylene lining typically 15-25 microns thick. By weight, this lining represents roughly 5-10% of the total cup weight depending on cup size and lining specification. Many coffee cups exceed the 5% threshold; almost all single-use coffee cups with plastic lining sit above it once you include the lid. 

Food trays and clamshells often combine a paper or pulp base with a plastic film for moisture barrier, oxygen barrier, or visibility. Even minimal plastic films contribute meaningfully to total weight when the paper base is light. 

Beverage cartons are constructed from layers — paperboard for structure, polyethylene for liquid barrier, aluminum for oxygen barrier in some formats. The polyethylene alone often pushes total plastic content above 5%, even before considering plastic caps and seals. 

Frozen food packaging frequently combines paperboard outers with plastic inner pouches or trays. The combination is functionally necessary for freeze-thaw cycling, but the plastic component usually crosses the 5% threshold. 

In each case, the plastic component is not arbitrary or replaceable through simple substitution. It performs a specific functional role — moisture barrier, oxygen barrier, structural reinforcement, sealability — that paper alone cannot fulfill at the cost and performance brands and consumers expect. 

Which industries face the largest composite packaging redesign pressure?

The 5% rule is the part of PPWR most likely to surprise brand owners with sustainability stories built around paper-based formats. The redesign pressure is real, the timeline is tight, and the supplier ecosystem is not yet ready to support the scale of change required.  

- Laetitia Pires, Product Marketing Manager, Trace One

Three industry categories face concentrated 5% rule exposure. 

HORECA — hotels, restaurants, catering, and quick-service food — is the most exposed. Single-use coffee cups, food trays, takeaway clamshells, sauce containers, condiment packets, hotel toiletry packaging, and disposable cutlery wrapping all face direct 2030 ban exposure when they combine paper with plastic above the threshold. The category-specific items already listed in Annex V make this explicit, and the broader 5% rule extends the pressure to many adjacent formats. Major QSR chains, hotel groups, and food service distributors face significant redesign and re-sourcing requirements. 

Beverages — particularly the carton segment — face structural exposure. Tetra-style cartons used for milk, juice, plant-based beverages, and increasingly water and soft drinks all incorporate polyethylene layers that typically exceed the 5% threshold. While many of these formats are not yet on the Annex V list, the regulatory direction is consistent: composite materials that cannot be efficiently recycled are progressively restricted. 

Frozen and chilled food categories face exposure where paperboard outers combine with plastic inners. Frozen ready meals, frozen dessert packaging, chilled food trays with film overwrap — many of these formats exceed the 5% threshold and face 2030 questions even where Annex V does not directly address them today. 

In each category, the supplier ecosystem for compliant alternatives is still maturing. Plant-based barrier coatings, fiber-based laminate alternatives, and fully paper composite solutions exist but are not yet at the cost-performance level required for industry-scale deployment. Brand owners in these categories cannot wait until 2029 to re-source — the supplier capacity simply will not be there. 

What does compliant composite packaging redesign actually require?

Replacing plastic-containing composite packaging is not a single-step substitution. It requires four parallel workstreams that take years to execute at portfolio scale. 

First, materials science evaluation. New barrier technologies — plant-based coatings, fiber-based laminates, alternative polymer chemistries — must be evaluated for the specific functional requirements of each packaging application. Performance under heat, moisture, oxygen exposure, and freeze-thaw cycling all matter. Most brands will need to test multiple options before settling on viable alternatives. 

Second, supplier qualification. New material formats require new suppliers, or existing suppliers operating new production capabilities. Qualifying suppliers — auditing manufacturing capabilities, testing supply chain reliability, validating cost structures — typically takes 6 to 18 months per major supplier relationship. 

Third, packaging engineering and tooling. New materials often require redesigned packaging structures, new manufacturing tooling, and updated production processes. This phase is capital-intensive and time-bound by tooling lead times. 

Fourth, regulatory and consumer testing. New packaging requires food contact safety testing, shelf-life validation, and consumer acceptance testing. Regulatory approval pathways for novel materials can extend the timeline significantly, especially for food-contact applications. 

Across these four workstreams, the realistic timeline for portfolio-level redesign in HORECA, beverages, or food service categories is 24 to 48 months — meaning brand owners who need to be ready by January 2030 should be in active execution by early 2027 at the latest.

Where senior leaders should focus first 

If your portfolio includes paper-based packaging in HORECA, beverages, or food service categories, the most important work to start in the next 90 days is portfolio-level composite material assessment. The question is simple in framing but consequential in answer: which packaging items in our portfolio exceed the 5% plastic threshold, and which of those formats appear on Annex V or are likely to be added before 2030? 

This assessment requires the data infrastructure discussed in Article 2 — accurate material composition data linked to SKUs, with weights and material specifications for every component. Brand owners without that infrastructure cannot answer the assessment question reliably, which means they cannot accurately scope the redesign required, which means they cannot start the supplier engagement that will define their 2030 position. 

About Trace One

With more than 30 years of industry expertise, Trace One partners with over 9,000 brands across food and beverage, cosmetics, and chemicals to accelerate product development and turn regulatory complexity into a competitive advantage. Our AI-powered PLM platform, with regulatory intelligence spanning 170+ countries, supports the entire product manufacturing lifecycle — helping brands bring market-leading products to shelf faster and thrive in new markets. Learn more at traceone.com.