What is the difference between biodegradable and compostable food packaging?

Biodegradable and compostable are not the same thing, even though they are often used interchangeably. Biodegradable packaging simply means a material can break down through biological processes, while compostable packaging must meet specific conditions, timeframes, and end-of-life infrastructure requirements to decompose properly. For food manufacturers evaluating sustainable packaging materials, understanding this distinction matters more than ever as EU regulations tighten and scrutiny of unsubstantiated environmental claims intensifies.

Which materials are actually biodegradable in food packaging?

In food packaging, biodegradable materials are those that can be broken down by microorganisms into water, carbon dioxide, and organic matter over time. Common examples include paperboard, cardboard, certain plant-based plastics (PLA), bagasse, and some bio-based films. However, the term biodegradable carries no standardised legal definition in the EU, which means the breakdown rate, conditions required, and residue left behind vary enormously between materials.

Paperboard and cardboard are among the most reliably biodegradable materials in food packaging. They break down in natural environments without requiring industrial processing, and they are widely collected and recycled across Europe. Plant-based plastics such as PLA look and behave like conventional plastic but are derived from renewable sources like corn starch. The catch is that most PLA packaging does not biodegrade meaningfully in a home garden or landfill. It typically requires industrial composting conditions to break down at all.

This gap between marketing language and real-world behaviour is exactly why the EU is moving to restrict vague biodegradability claims on packaging. A material being technically biodegradable under laboratory conditions tells consumers very little about what actually happens to it after use.

What does compostable food packaging actually require to break down?

Compostable food packaging requires specific temperature, humidity, microbial activity, and time conditions to break down properly. Most certified compostable packaging is designed for industrial composting facilities, where temperatures consistently reach around 55 to 60 degrees Celsius. Without these controlled conditions, compostable packaging often behaves no differently from conventional plastic in a home compost bin or landfill.

Industrial compostable packaging must meet standards such as EN 13432 in Europe, which defines how quickly a material must disintegrate, the level of biodegradation required, and limits on heavy metals and harmful residues. Home compostable packaging faces even stricter real-world testing because it must break down at lower, less controlled temperatures.

The infrastructure gap is a critical practical issue. Even if packaging carries a certified compostable label, it can only fulfil that promise if a suitable composting facility is accessible and if consumers correctly separate it from other waste streams. In many EU countries, compostable packaging placed in general recycling actually contaminates fibre streams, creating problems rather than solving them.

Is biodegradable or compostable packaging better for the environment?

Neither biodegradable nor compostable packaging is automatically the better choice. The environmental value of any packaging depends on whether the right end-of-life infrastructure exists where the product is sold, and whether consumers can actually use it correctly. A recyclable fibre-based tray that reliably enters the recycling stream often delivers better real-world outcomes than certified compostable packaging that ends up in landfill.

Compostable packaging can offer genuine benefits for specific applications, particularly where food waste and packaging are collected together for organic waste processing. In those contexts, a certified compostable food container keeps organic material out of general waste and returns nutrients to soil. However, this only works where separate organic waste collection is in place and where the composting facility accepts the specific material — and where composting takes place under the right industrial conditions.

Biodegradable packaging is a broader and less precise category. Some biodegradable materials, such as fibre-based packaging, have well-established recycling pathways and measurable benefits. Others break down slowly, release methane in landfill conditions, or leave microplastic residues. Evaluating packaging sustainability means looking at the full picture: raw material source, manufacturing impact, recyclability, and realistic end-of-life routes in the target market.

How is fibre-based packaging different from biodegradable and compostable options?

Fibre-based packaging, such as paperboard and cardboard trays, is distinct from biodegradable and compostable packaging in one important way: it has a proven, large-scale recycling infrastructure already in place. Rather than requiring industrial composting or specific breakdown conditions, fibre-based food packaging can be collected, processed, and turned into new materials through existing recycling systems in most European countries.

Paper and cardboard packaging achieves a recycling rate of around 96% in Finland, and fibre-based materials consistently rank among the highest-performing packaging categories across the EU. This is not a theoretical benefit — it is a measurable outcome supported by real collection and processing capacity.

Our Jospak® carton tray is a practical example of how fibre-based packaging works. The tray is made primarily from renewable wood fibre sourced from responsibly managed forests and contains at least 85% recycled fibre content, with plastic use reduced by up to 90% compared to a same-sized tray made entirely from plastic. It is recyclable as cardboard in countries including Finland, Sweden, Germany, Norway, Poland, and Switzerland, meaning it fits directly into existing cardboard recycling streams without requiring any special infrastructure. It is worth noting that the carton tray should be recycled as cardboard — not placed in bio-waste. This is a fundamentally different proposition from compostable packaging, which depends on access to industrial composting facilities that remain unevenly distributed across Europe.

What do EU regulations say about biodegradable and compostable packaging claims?

EU regulations are becoming significantly stricter about both biodegradable and compostable packaging claims. The EU packaging and packaging waste regulation (PPWR), which applies from 12 August 2026, introduces clear compostability requirements and restricts which packaging types may make compostability claims at all. Under the regulation, compostable packaging is only permitted in specific, defined use cases where separate collection and industrial composting infrastructure can reliably handle it. It is important to note that the PPWR is a regulation — not a directive — meaning it applies directly and uniformly across all EU member states without requiring national implementing legislation.

The PPWR also requires that all packaging placed on the EU market be recyclable at scale, with a recyclability grading system that becomes fully applicable by 2030. For paper and cardboard packaging specifically, the regulation sets a recycling target of 75% by 2030. Vague claims that packaging is “biodegradable” without specifying conditions, timeframes, or certification standards face increasing scrutiny under both the PPWR and the separate EU Green Claims Directive, which targets unsubstantiated environmental marketing.

The PPWR also addresses PFAS compounds — the fluorinated substances historically used to achieve grease and moisture resistance in food-contact packaging. From August 2026, food-contact packaging must not exceed strict threshold values for intentionally added PFAS. Jospak’s fibre materials and manufacturing processes already meet these stringent requirements today, and the risk of unintentional PFAS residues from recycled fibre is actively managed.

For food packaging manufacturers, this regulatory direction has a practical implication: packaging that can demonstrate verified recyclability through existing infrastructure is on stronger regulatory ground than packaging relying on biodegradability or compostability claims that depend on conditions outside the manufacturer’s control. Reviewing packaging strategy against the PPWR’s compostability and recyclability requirements ahead of the 12 August 2026 application date is a practical step worth taking now.

Should food manufacturers switch to biodegradable or compostable packaging?

Switching to biodegradable or compostable packaging solely because those terms carry positive associations is not a straightforward path to better outcomes. The more useful question is whether the packaging can reliably reach the right end-of-life pathway in the markets where it is sold. For most food manufacturers selling into European retail, recyclable fibre-based packaging currently offers a more practical and verifiable pathway than compostable alternatives.

Compostable packaging makes sense in specific contexts: food service operations with dedicated organic waste collection, products where food residue and packaging are inseparable, or markets where industrial composting infrastructure is well developed and accessible to consumers. Outside those conditions, switching to certified compostable packaging can create confusion, contaminate recycling streams, and fail to deliver the outcome the label implies.

Biodegradable packaging as a general category is even harder to recommend without qualification. The term covers materials with very different real-world outcomes, and EU regulatory direction is moving away from accepting it as a standalone environmental claim.

For manufacturers looking to reduce plastic use and meet tightening EU packaging requirements, fibre-based recyclable packaging is worth evaluating seriously. The Jospak® carton tray is designed specifically for the circular economy: the carton and film are separable, returning valuable fibre to existing collection systems — directly aligned with the PPWR’s design-for-recycling requirements. We at Jospak can help map your current packaging situation and identify practical options for reducing plastic and improving recyclability without compromising product protection or shelf life.