Shaoxing, Zhejiang, China - October 27, 2026
- Certification proves a film can biodegrade under defined conditions. It does not prove anything will biodegrade it, and the two are separated by a collection and processing chain that most buyers never examine.
- Industrial composting requires heat, agitation, moisture and a controlled residence time, which is why it exists at a small number of dedicated facilities rather than at every municipal waste site. A country with excellent waste sorting can still have almost no industrial composting capacity.
- Certification bodies publish the standards, but the operator of the receiving facility is a separate organisation, and the certification a film carries is only meaningful in a market where that operator accepts it.
- For a natural cellulose film the biological route is unusually well matched to the problem, because cellulose is the substrate biology is designed to consume, and a film made of it does not need a synthetic polymer to be engineered to break down in the first place.
- The practical step for a buyer is to name the disposal route in the market you are shipping to before you specify the film, and to treat “no industrial composting facility accepts our certification in this city” as a packaging decision rather than a footnote.
The short answer: a certified compostable film is a claim about chemistry, and whether it is ever composted is a question about infrastructure, and the two are far more loosely connected than the marketing around compostable packaging implies. A film can carry every certification a buyer could ask for and still end up in an landfill, and a film with no certification can still biodegrade in a garden.
I have spent fifteen years developing natural cellulose films, and I have watched this confusion cost people money repeatedly. Because the certification answers a question about the material and the buyer is usually asking a question about the city, the gap between those two questions is where compostable packaging programmes quietly fail.
So let me frame this the way I would frame it for a packaging buyer, because the question you should be asking is not which standard should I certify to. Because there are several recognised standards and the choice among them is mostly a formality if the receiving facility does not accept that mark, the question that actually determines whether your film gets composted is whether a specific facility in your market accepts it, and that is a question you can answer before you print anything.
Figure 1. Two-side coated cellulose film on a reel. The paper core and the clear film are both plant-derived, which is what makes the biological end-of-life route plausible in the first place. Certification then depends on a facility that exists somewhere specific.Why Certification and Infrastructure Are Different Questions
Because a compostability certificate is issued against a test method that simulates a composting environment rather than against any real facility, the certificate establishes a capability and not an outcome. That distinction is the whole article, so I will state it plainly.
The recognised industrial compostability standard in the European Union is EN 13432, which determines the degree of compostability of packaging and packaging components and their degradation in industrial composting facilities. The international standard is ISO 17088:2021, plastics for organic recycling with specifications for compostable plastics, which includes the same aerobic biodegradation, disintegration and ecotoxicity logic applied across a material class. In North America the reference for the label itself is ASTM D6400-23, the standard specification for labeling of plastics designed to be aerobically composted in municipal or industrial facilities.
All three are laboratory standards. They specify controlled temperature, controlled humidity, controlled agitation and a defined test duration, and a material that passes is genuinely capable of biodegrading under those conditions. Because industrial composting is the only waste treatment process that deliberately creates those conditions, and because the other common biological route, home composting, operates at ambient temperature and on a kitchen scale, a film certified for industrial composting is not thereby certified for a domestic compost bin.
That distinction catches buyers out constantly, and it cuts both ways. A film certified to EN 13432 may need industrial heat to biodegrade and will sit in a garden bin for months. A material certified only for home composting may never break down in an industrial facility where the process is too fast for it. Because these are two different tests answering two different questions, a buyer who has not decided which end of the composting chain they are designing for has not yet chosen the standard, and cannot sensibly choose the film either.
And then there is the regulatory layer, which in Europe has recently changed the calculation. Regulation (EU) 2025/40 on packaging and packaging waste applies from 12 August 2026, and it is the instrument that will drive compostable packaging into mainstream retail across the European Union over the coming years. Because a regulation can create a market for a certified pack faster than it can create the industrial facilities to receive it, the near-term risk in Europe is not that certification is too strict, it is that certified packaging arrives in cities that have no facility able to process it.
What Industrial Composting Actually Requires
Because industrial composting is a controlled biological reactor rather than a landfill with a different name, it requires heat, agitation, moisture, a retention period and a specific microbial population, and that is why it exists at a limited number of dedicated facilities rather than at every municipal waste site.
Five conditions have to be met together, and I would ask a buyer to hold all five in mind before assuming a market is served.
- Thermostatic control. The process runs at a controlled elevated temperature, typically maintained across a band that destroys many pathogenic organisms and speeds the degradation of lignocellulosic material. A facility that cannot hold temperature cannot hold the standard.
- Active aeration and turning. Material is moved through the pile to keep oxygen available, to distribute heat, and to break up clumps that would otherwise anaerobically sour rather than compost.
- Moisture management. Too dry and the biology stalls; too wet and the pile becomes anaerobic. Facilities spend real capital on this and it is one of the reasons the capital cost per tonne is high.
- Residence time measured in weeks to months. Not days. This is the constraint that limits throughput, and therefore limits how much material any single facility can absorb in a year.
- A controlled end-of-life output. The finished compost must meet a specification for a declared use, which means the input specification has to be controlled to keep the output compliant.
Two consequences follow directly, and they are the reason this article is about countries rather than about films.
Because the capital cost and the operating complexity are both high, industrial composting capacity concentrates in a small number of large operators, which means a market can have excellent waste sorting and still have no industrial composting at all. Germany, the Netherlands, Italy, Spain and a small number of other European markets have mature industrial composting networks. A great many countries have good or improving separate collection of organic waste and no industrial composting facility that will accept packaging at all, because their organic waste goes to anaerobic digestion, which is a different process with a different output and no claim about biodegradation of packaging.
And the second consequence is about the operator. Because the certification body and the facility operator are separate organisations with separate commercial interests, the certificate a film carries is only meaningful in a market where the operator accepts that specific mark, and the two frequently speak to each other directly. This is why the certification schemes in Europe are administered at national level in a way that matters commercially: a facility in one country may accept only its national certification and not a certificate issued elsewhere, even where both are built on the same underlying test standard.
| Market type | What exists | What this means for a certified film |
|---|---|---|
| Mature industrial composting network with a national certification scheme | Dedicated facilities running controlled aerobic process, generally accepting packaging certified against the national mark or a recognised equivalent. | A certified film has a genuine route to biodegradation, provided the certification route matches what the operator accepts and the film is separated at collection. |
| Industrial composting present but concentrated in a few regions | Capacity exists in some cities and not in others, so national collection does not guarantee national processing. | The claim has to be made city by city, and a national “compostable” statement on pack is misleading in the cities without a facility. |
| Organics collected for anaerobic digestion rather than composting | Digestion is the dominant route for food waste, and it is a different process producing a different output. | A film certified for industrial composting has no defined route in this market. A film designed for biodegradation in the digestion environment is a different specification question. |
| Separate collection exists but no industrial composting capacity | Organics may be collected and then landfilled or incinerated, because the alternative capital cost has not been justified at the volumes available. | The film is certified and still not composted. This is the market where a compostable claim is most exposed, and where the honest answer to a buyer is to say so. |
| Home composting is the realistic route | No industrial facility, but meaningful household composting and garden composting in some urban markets. | A film certified only for industrial composting is the wrong specification. The home-compost certification route is the relevant one, and it is a different test. |
Why a Natural Cellulose Film Is a Different Case
Because cellulose is the substrate biological systems are built to consume, a natural cellulose film does not need to be engineered to break down in the first place, which changes the commercial question from “can this be made to compost” to “where does it go”.
This is the point I would make to a buyer comparing a natural cellulose film against a petrochemical compostable polymer, and it is a genuinely different argument rather than a marketing one.
A petrochemical compostable polymer is an engineered material. Its degradation is a designed behaviour that depends on the right conditions, the right microbial population and often on a specified thickness and surface treatment to prevent premature breakdown on the shelf. A cellulose film, by contrast, is made from plant-derived material whose biodegradation is the default behaviour of the organic substrate itself. Our cellulose films are produced from regenerated natural cellulose, and they are biodegradable, insulating, heat-resistant and anti-static, meeting EU food contact material standards for food packaging applications.
The practical consequence for an end-of-life discussion is significant. Because cellulose is what soil biology, fungi and bacteria consume as a carbon source, the biological route for a cellulose film does not depend on the presence of a specific engineered-degradation trigger, and it degrades across a wider band of conditions than a certified polymer, which is exactly the property that matters in a market whose composting infrastructure is uneven.
That wider band is not a substitute for certification, and I want to be careful here because this is where the industry overclaims in both directions. A cellulose film still needs to meet the food contact requirements for its intended use, which for our materials means the EU food contact standards, and it still needs a decomposition route in the market it ships to. Because the material being naturally degradable does not exempt it from being separated from the waste stream, a cellulose film in a mixed municipal bin is still a cellulose film in a landfill, and no property of the material changes that.
What it does change is the risk profile. A petrochemical compostable film that enters a market without infrastructure fails completely and visibly, because it persists exactly as intended to be composted. A cellulose film in the same situation degrades more slowly and more partially, which is a materially different kind of failure for a brand to be exposed to.
The Regulatory Direction of Travel
Because a certification scheme a buyer chooses voluntarily can be gamed by choosing the cheapest route, and because a certification scheme a regulator mandates cannot, the shift from voluntary marks to regulatory requirements is the single most important change for a packaging buyer planning the next five years.
Regulation (EU) 2025/40 on packaging and packaging waste is the instrument doing that work in Europe, applying from 12 August 2026, with provisions on compostable packaging and on labelling of packaging. Its importance for a buyer is not the fine print; it is the direction. Because a mandated certification scheme will be written into national implementation and therefore into the acceptance criteria of the facilities themselves, the operator acceptance question that dominates today becomes a compliance question tomorrow.
That has a predictable effect on how you specify. If a scheme is mandated, the material choice is constrained by the scheme rather than by the brand. If it is voluntary, the brand chooses, and the brand should choose by asking the question this article is about: where is the film actually going to go?
For the United States the regulatory frame is different in character, and it is worth being direct about the difference rather than blending the two systems. Because in the United States the environmental marketing claim is regulated as a claim, through 16 CFR Part 260 on guides for the use of environmental marketing claims, rather than through a mandatory compostability standard, a compostable claim made in that market is principally a question of substantiation and of qualifying language, and it is not a substitute for a route to a facility. A substantiated claim that the material is compostable is a claim about the material. Whether a facility in the destination city will process it remains the separate question this article is about.
And in China, where a large share of the material for cellulose-based packaging is produced, the domestic infrastructure question runs through the food waste treatment network rather than through a packaging certification scheme, and a manufacturer supplying into that market needs to understand the local organics route rather than assume a European or North American framework transfers. Our own operation sits in Zhejiang, in the largest ecological industrial park in the province, covering 116,700 sqm with a 60,000 sqm building area, and we hold ISO 9001:2000 and ISO 14001:2004 certifications as the largest manufacturer of natural cellulose membranes in China, which tells you about our manufacturing controls but says nothing at all about where a finished pack is processed.
How a Buyer Should Answer the Infrastructure Question
Because the infrastructure question is a distribution question rather than a laboratory question, the right person to answer it is not the certification body and not the film supplier, it is the waste collection and treatment operator in the destination market. I have seen this question asked of laboratories and answered with test data, which is answering a different question.
Here is the sequence I would run, in this order, and I have deliberately put the facility enquiry first rather than the certification enquiry because the order determines how much work you do for nothing.
- Identify the actual disposal route — not the intended one. For each destination market, find out where the packaging physically goes after collection: industrial composting, anaerobic digestion, energy recovery, or landfill. If a market has no industrial composting that accepts packaging, write that down, because it changes the specification.
- Identify the operator, not the scheme — the specific facility operator in the cities you ship to, and ask them directly which certification marks they accept on packaging. This is a short email and it is the highest-value question in the whole process.
- Confirm separation at collection — whether the packaging is likely to be separated from the residual waste stream. A certified film that is collected with general waste in a market with no packaging-specific collection is a certification with no route.
- Then select the certification route — industrial versus home composting, and the standard that matches the route the operator accepts. This step is easy once the first three are done, and it is close to impossible to do well before them.
- Then specify the material — substrate, barrier, sealing, print and food contact requirements, with the decomposition route as one of the constraints rather than as a marketing attribute.
Step two is the one that changes decisions, and I would encourage a buyer to make the enquiry before they have chosen a supplier. Because the answer will sometimes be that the market cannot process the pack, and finding that out before a print run and a retail listing is the difference between changing a specification and withdrawing a product from a shelf.
Questions to Put to a Facility Operator
These are the questions I would ask, in wording that gets a useful answer rather than a polite non-answer.
- Which certification marks do you accept on packaging, and do you accept a certificate issued outside your country if it is built on the same test standard?
- Do you accept compostable packaging on a general commercial waste stream, or only on a packaging-specific collection stream?
- What is your rejection criterion, and what happens to a load that contains material your process does not accept?
- What proportion of your feedstock is packaging, and do you have a packaging tonnage figure that is actually processed rather than received?
- What minimum disintegration standard do you require over your residence time, and at what temperature does your process run?
- Do you require a disintegration test on the finished pack, including any laminate, ink, adhesive and coating, rather than on the base film alone?
That last question is the one that catches film suppliers, and it caught us as a supplier more than once. Because a certification is usually issued on the base material and a finished pack is a composite, a pack that passes on the film and fails on the ink, the adhesive or the coating is a pack that will be rejected at the facility, and the operator will not accept a base-film certificate as evidence for a laminate. For our own coated and aluminized cellulose film ranges, the barrier coatings and the metallisation are exactly the elements that change the biodegradation profile, and I would not want a buyer to find that out from a rejection at a facility.
Where a Buyer Should Be Sceptical
Three places, and I include them because they are where I have seen buyers lose money.
Because the phrase “compostable packaging” is legally meaningful in some markets and legally loose in others, a supplier who offers the phrase without naming the standard, the certification body, the certificate number and the target market is offering a description rather than a specification. Ask for the certificate number and read it. That is not distrust, it is the fastest way to find out whether you are holding a document or a marketing line.
The second place is the claim that a material is biodegradable without a stated route. Because natural cellulose is genuinely biodegradable and that is a real and meaningful advantage, it is also the easiest property in the sector to overstate, and a supplier who says a film is biodegradable and stops there has told you about the chemistry and nothing about the city. The question that separates the two is always the same: composted where, by whom, and on whose certificate.
The third is the assumption that certification transfers between countries. Because EN 13432 and ISO 17088:2021 share a common logic, it is tempting to assume that a certificate issued in one jurisdiction is accepted in another, and for industrial composting in Europe that is frequently true, but for home composting and for some national operator acceptance criteria it is not, and the transfer has to be confirmed with the operator rather than assumed from the test standard.
What I Would Tell a Buyer Choosing a Material Today
Let me separate what I can say from my own position as a manufacturer from what is general guidance, because the two should not be blurred.
On the general question, the framing I would offer is this. Because the end-of-life question is really a distribution question, the material you choose should be chosen for the route that exists in your market rather than for the certification that sounds most impressive in a specification sheet, and the second-order effect of that decision is that you will often end up with a better material than you started looking for.
On our own position as a supplier, the honest statement is this. Our natural cellulose films are made from regenerated plant-derived cellulose, they are biodegradable, insulating, heat-resistant and anti-static, and they meet EU food contact material standards for food packaging use. We produce regenerated transparent protective film on reels and sheets, one-side and two-side coated film for sustainable packaging, coloured film in rolls and pre-cut sheets, and aluminized cellulose film for high barrier applications. Because the biological route for a cellulose film is the default behaviour of the substrate rather than an engineered trigger, our material degrades across a wider band of real conditions than a certified synthetic compostable polymer, which is a genuine advantage in a market with uneven infrastructure, and that advantage is only real if the pack is separated from the waste stream at collection.
And the caveat I would attach to all of it. Because no manufacturer can guarantee that a pack will be composted in a city where the facility does not exist, the only honest claim any of us can make is about what the material does under the conditions it is designed for, and the honest question for a buyer is not whether the film is certified but whether the market has a facility that will take it.
That is the argument I would make to a medical device or food packaging buyer who needs to balance barrier performance, sterilization compatibility and EU sustainability requirements at industrial scale, and it is the argument I have made to every customer who has asked me for a compostable claim. The material question is the one we can answer precisely. The infrastructure question is the one we can only help you ask.
Planning a compostable packaging programme?
Send the destination markets, the intended disposal route, the substrate constraints and the barrier requirements, and the XIADE team will return a written specification covering the cellulose film grade, the coating or metallisation option, the food contact position and the certification route that matches the facility you have confirmed accepts it. We would rather tell you that a market cannot process the pack than let you find out at a facility.
Start the specification conversation →Frequently Asked Questions About Composting Infrastructure and Certified Films
Does a compostable certification guarantee my packaging gets composted?
No, and this is the single most important point in the article. A certification is issued against a laboratory test method that simulates a composting environment, so it establishes a capability and not an outcome. Whether the pack is actually composted depends on collection, on separation from the residual waste stream, and on whether a facility in your market accepts that specific certification mark. A film can carry every certification available and still be landfilled.
What is the difference between EN 13432, ISO 17088 and ASTM D6400?
They are three ways of establishing the same core capability against slightly different framings. EN 13432 determines the degree of compostability of packaging and its degradation in industrial composting facilities and is the European reference. ISO 17088:2021 is the international standard for plastics in organic recycling, with specifications for compostable plastics. ASTM D6400-23 is the North American standard specification for labeling of plastics designed to be aerobically composted in municipal or industrial facilities. All three address biodegradation, disintegration and ecotoxicity, and all three are laboratory standards rather than facility standards.
Is a film certified for industrial composting also suitable for a home compost bin?
No, and assuming otherwise is a common and expensive error. Industrial composting runs at elevated temperature with aeration and a controlled residence time measured in weeks, and home composting runs at ambient temperature on a kitchen scale. The certification is for the process it was tested against. If the realistic route for your product is a domestic bin, the home composting certification route is the relevant one and it is a different test with different acceptance criteria.
Can a country with good waste sorting still have no industrial composting capacity?
Yes, and it is common, because industrial composting is capital-intensive and technically demanding. The process requires thermostatically controlled temperature, active aeration, moisture management, a residence time measured in weeks and a controlled end product, which is why capacity concentrates in a small number of large operators. A market with an excellent organics collection system whose organic waste goes to anaerobic digestion rather than composting is a market with no industrial composting route for packaging at all.
What does Regulation (EU) 2025/40 change for compostable packaging?
It applies from 12 August 2026 and it is the instrument that will push compostable packaging into mainstream European retail. Its significance for a buyer is directional rather than technical: because a mandated certification scheme is written into national implementation and therefore into facility acceptance criteria, the question of whether an operator accepts your film moves from a commercial negotiation to a compliance check. The near-term risk is not that certification is too demanding, it is that certified packaging reaches cities with no facility able to process it.
How does the US market handle compostable claims?
Through environmental marketing claim regulation rather than through a mandatory compostability standard. 16 CFR Part 260 governs guides for the use of environmental marketing claims, so a compostable claim in the US market is principally a question of substantiation and of qualifying language. That is a different mechanism from the European framework, and substantiating that a material is compostable still does not answer whether a facility in your destination city will process the pack.
Does a base-film certificate cover a laminated or coated pack?
Not automatically, and this is where a lot of buyers are caught. Certification is normally issued on the base material, while a finished pack is a composite of film, ink, adhesive and coating. For our aluminized and two-side coated cellulose film ranges the barrier coating and the metallisation are precisely the elements that change the biodegradation profile, and an operator assessing a finished pack is entitled to ask for a disintegration test on the complete pack rather than on the film alone. Ask the operator what they require for a laminate.
Is a natural cellulose film automatically better for composting than a certified synthetic polymer?
It is better in a specific and defensible way, but it is not a substitute for a route. Because cellulose is the substrate biological systems consume as a carbon source, a cellulose film does not need an engineered degradation trigger, and it degrades across a wider band of real conditions than a certified synthetic compostable polymer. That is a genuine advantage in a market with uneven infrastructure, and it also means the failure mode is less severe. It does not exempt the pack from being separated from the waste stream, and a cellulose film in a mixed municipal bin is still a cellulose film in a landfill.
Who should I ask about composting infrastructure in my destination market?
The waste collection and treatment operator, not the certification body and not the film supplier. The certification body answers a question about the material and the operator answers a question about the city, and the two are separate organisations with separate interests. Ask the operator which certification marks they accept on packaging, whether they accept a certificate issued outside their country, whether they take packaging on a general commercial stream, what their rejection criterion is, and what they require for a laminate.
What should I ask a packaging supplier to prove a compostable claim?
The certificate number, the certification body, the standard it is issued against, the target market, and the test report behind it. A supplier who offers the phrase compostable packaging without naming those five things is offering a description rather than a specification. Read the certificate yourself and check that the material and the finished construction in the certificate match what you are actually buying.
What if my market has no industrial composting that accepts packaging?
Then the specification has to change, and finding that out before the print run is the point of asking early. The realistic options are to design for the route that exists, which may mean anaerobic digestion considerations, to use a material whose biological route does not depend on industrial conditions, or to make no compostable claim at all and specify the pack for the recovery route that is actually available. None of those is a failure of the material, it is a mismatch between the material and the infrastructure, and it is far cheaper to discover at the specification stage.
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