Fiber-based packaging continues to gain ground as brands search for alternatives to conventional plastic formats, but industry specialists are warning against a deceptively simple assumption:

If packaging is made from paper, it must be recyclable and therefore sustainable.

In practice, the environmental performance of fiber packaging depends on much more than its primary material. Coatings, adhesives, inks, laminates, product-protection requirements and the recycling infrastructure available in the market can all influence whether fibers are successfully recovered.

The discussion comes as paperization continues across food and beverage packaging. According to Innova Market Insights data cited by Packaging Insights, Europe accounted for 42% of fiber-based food and beverage new product development, while 34% of consumers globally described paper packaging as very sustainable.

For packaging producers, however, growing consumer preference makes accurate sustainability claims increasingly important.

Paper Does Not Automatically Mean Recyclable

The phrase “paper packaging” can describe structures ranging from relatively simple cartons to highly engineered packages containing barriers, coatings and adhesives.

Those additional components often exist for good reasons.

Food packaging, for example, may require resistance to grease, water vapor, oxygen or other environmental conditions. A paper substrate alone may not provide the required protection.

The resulting packaging therefore needs to be evaluated as a complete structure, rather than judging recyclability solely from the fiber substrate.

Matthias Waltz, head of Group Software Solutions at Aicomp, summarized one of the industry’s central misconceptions as:

“It’s paper, so it’s recyclable.”

Jürgen Kleinrath, chief science officer for Board & Paper at MM Board & Paper, similarly noted that coatings, laminates, adhesives and inks influence how packaging behaves during pulping and separation.

Some structures can pass through conventional paper recycling processes. Others may require additional treatment or specialized recycling systems.

The practical question is therefore not simply:

Is there paper in the package?

It is:

Can the finished package be effectively processed through the recycling system where it will actually become waste?

Coatings and Adhesives Become Part of the Recycling Equation

Functional components can have an outsized influence on fiber recovery.

Barrier coatings may be required to protect food. Adhesives hold packaging structures together. Printing inks communicate branding and regulatory information.

But inappropriate chemistry or excessive non-fiber content can complicate repulping, introduce contaminants or affect the quality and yield of recovered fibers.

Alessio Crivellari, product manager of Paper & Board Europe at Flint Group, therefore argues for designing complete packaging systems in which performance and end-of-life requirements are considered together.

This represents an important evolution in paperization.

Replacing a plastic package with a fiber-based structure may appear to reduce plastic use, but if achieving equivalent product protection requires a complicated combination of difficult-to-separate materials, the resulting recycling outcome may be less straightforward than the “paper-based” description suggests.

Real-World Recycling Infrastructure Matters

Technical recyclability is only one part of the equation.

Collection, sorting and recycling infrastructure differs substantially between countries and regions.

A package that can theoretically be recycled under controlled test conditions may encounter a different reality when placed into municipal collection systems.

Crivellari pointed to this distinction, noting that regional differences in collection, sorting and recycling capacity can cause actual outcomes to differ from theoretical recyclability.

This creates a challenge for global packaging brands.

A structure may work effectively within one established recycling system but encounter limited collection or processing capability somewhere else.

Recyclability claims therefore increasingly need to consider not only material composition but also the infrastructure through which the package is expected to move.

Recyclable and Compostable Are Not the Same

Another source of consumer confusion involves compostability.

Fiber is biologically derived, but that does not mean every fiber package should be treated as compostable — nor does compostability automatically make a package environmentally preferable.

Recycling and composting are different end-of-life pathways with different infrastructure requirements.

Where fiber can be efficiently recovered and returned to paper or board production, recycling may preserve the material’s value within the economy.

Compostable packaging, meanwhile, may require specific collection and treatment conditions depending on its design and certification.

Clear disposal instructions consequently become important as packaging structures become more sophisticated.

Product Protection Cannot Be Ignored

The sustainability calculation becomes even more complicated when packaging protects food.

Reducing packaging material provides little benefit if the resulting structure inadequately protects the product and increases spoilage or damage.

This is particularly relevant for foods requiring moisture, grease or oxygen barriers.

Waltz cautioned that switching from plastic to fiber can shift environmental burdens elsewhere if the new package contributes to additional food waste or relies on coatings that cannot be effectively recovered.

That means material reduction and plastic substitution should be evaluated alongside packaging’s primary function: protecting the product throughout its intended supply chain.

A lightweight or highly recyclable package that fails during transportation or storage is not necessarily the environmentally preferable solution.

Fiber Can Be Recycled More Than Commonly Assumed

Industry experts are also challenging misconceptions in the opposite direction.

One common belief is that paper fibers rapidly lose their usefulness after only a small number of recycling cycles.

Kleinrath cited research conducted by MM Board & Paper with Graz University of Technology indicating that cartonboard fibers could undergo at least 25 recycling cycles without significant loss of mechanical strength under the study conditions.

This does not mean every fiber will circulate 25 times in actual recycling systems. Real-world losses occur during collection, sorting, processing and product use.

But the findings reinforce the potential value of keeping suitable fibers circulating through repeated recycling.

For circularity to work, however, collecting material is not sufficient. Recovered fibers must also be processed and incorporated into new products, creating continued demand for recycled material.

Sustainability Claims Face Greater Scrutiny

The debate arrives as regulators and consumers increasingly scrutinize environmental marketing.

Nearly half of food and beverage launches using fiber-based materials carried a recyclable claim between October 2024 and September 2025, according to Innova data cited in the report.

As paperization expands, broad statements based solely on material choice may become harder to defend.

Claims such as “paper-based,” “recyclable” and “sustainable” describe different characteristics and should not automatically be treated as interchangeable.

For packaging developers, this increases the importance of recyclability testing, material documentation and evidence supporting environmental claims.

It also means designers need to look beyond the headline substrate.

From Paperization to System Design

Fiber packaging remains an important area of packaging innovation.

But the next stage of development may be less about replacing one material with another and more about engineering packaging around the complete system:

Material selection → product protection → converting → consumer use → collection → sorting → recycling → recovered-fiber reuse

Every stage can influence the environmental outcome.

That changes the fundamental question facing brands considering a transition from plastic to fiber.

Instead of asking simply, “Can we make this package from paper?”, packaging developers increasingly need to ask:

“Can we make the complete package perform, protect the product and work within the recycling system where it will actually be used?”

That is a much higher bar — but also a more meaningful measure of whether paperization actually delivers the sustainability benefits being claimed.

Last Updated on 25/08/2026 by Jota Machinery