Two Certifications. One Critical Difference Most Buyers Miss.
Walk into any wholesale packaging showroom in Australia and you'll see the words "certified compostable" printed on everything from cups to clamshells. But there are actually two distinct Australian Standards governing compostable packaging — AS 4736 and AS 5810 — and they are not interchangeable. Choosing the wrong one for your disposal pathway can mean your packaging ends up in landfill anyway, your council rejects your FOGO bin contents, or your business faces scrutiny under incoming mandatory labelling rules.
This article breaks down both standards in precise detail — what they test, what they certify, which products carry which marks, how they interact with state-by-state plastic bans, and what the practical implications are for cafés, restaurants, food trucks, event caterers, local councils, and sustainability managers. By the end, you'll know exactly which certification to specify when placing your next wholesale order — and why it matters more in 2025–2026 than it ever has before.
What Is AS 4736? Industrial Composting Explained
AS 4736-2006 is the Australian Standard for biodegradable plastics suitable for composting and other microbial treatment. It applies specifically to industrial composting conditions — high-temperature, managed facilities that operate at sustained temperatures of 55–60°C with controlled moisture, aeration, and microbial populations.
What AS 4736 Requires
To earn certification under AS 4736, a product must satisfy four core criteria:
- Biodegradation: At least 90% of the organic carbon in the material must convert to CO₂ within 180 days under controlled composting conditions.
- Disintegration: At least 90% of the material must pass through a 2mm sieve after 12 weeks in a compost pile.
- Ecotoxicity: The compost produced must not be toxic to plants. Germination and plant biomass tests must show no significant negative effect compared to a control sample.
- Heavy metals and chemical safety: The product must contain no heavy metals or hazardous substances above regulated limits.
AS 4736 is broadly harmonised with the international standard ISO 14855 and the European equivalent EN 13432, which means products certified under those standards are often — but not automatically — compliant with AS 4736. Always confirm with your supplier that testing was conducted by an accredited Australian laboratory or that the certification body's scope explicitly covers AS 4736.
The Seedling Logo and What It Means in Australia
In Australia, the most recognised third-party certification body for AS 4736 is ABAP (Australasian Bioplastics Association), which licenses the internationally recognised Seedling logo. Products displaying the Seedling logo on their packaging have been independently tested and certified as industrially compostable under AS 4736. This is the logo you should look for when sourcing packaging destined for commercial composting streams or council FOGO programs that accept certified compostable packaging.
Which Products Typically Carry AS 4736?
- PLA (polylactic acid) cups and lids — including the clear PLA cold cups and CPLA hot lids used widely in cafés
- Bagasse (sugarcane pulp) containers, plates, bowls, and trays
- Compostable bin liners and produce bags made from certified biopolymers
- Kraft paper packaging with certified compostable coatings or liners
- PBAT-blend compostable bags (often used as food waste caddy liners)
It's worth noting that uncoated kraft paper and bamboo products are inherently biodegradable and generally do not require formal certification to compost — they break down readily in both industrial and home compost. Certification becomes critical when bioplastic coatings or composite materials are involved.
What Is AS 5810? Home Composting — A Stricter Test Than You'd Think
AS 5810-2010 is the Australian Standard for biodegradable plastics suitable for home composting. Despite the domestic-sounding name, it is actually a more stringent standard in one key dimension: it requires materials to break down at much lower temperatures — typically 20–30°C — reflecting the ambient conditions of a backyard compost bin rather than an industrial facility.
What AS 5810 Requires
- Biodegradation: At least 90% of organic carbon must convert to CO₂ within 12 months (vs. 180 days for AS 4736) under home-composting temperature conditions.
- Disintegration: The material must disintegrate sufficiently within 26 weeks to not be visually distinguishable as foreign material in finished compost.
- Ecotoxicity: Same plant germination and growth tests as AS 4736 — the compost must support healthy plant growth.
- Heavy metals and safety: Same limits as AS 4736.
The longer timeframe is not a weakness — it reflects the real-world conditions of home composting, where there is no active temperature management. A material that passes AS 5810 will also compost in an industrial facility, but the reverse is not necessarily true. Many PLA products that are certified AS 4736 (industrially compostable) will not break down in a home compost bin — this is one of the most misunderstood facts in Australian packaging.
The Home Compostable Logo
AS 5810-certified products use a separate logo — often labelled "Home Compostable" or carrying the ABA Home Compostable certification mark. Some products carry both marks, meaning they are certified for both pathways. When you see both logos on a product, that item can go in a home compost bin, a FOGO bin (where accepted), or an industrial compost facility.
Which Products Typically Carry AS 5810?
- Certified compostable bin liners and kitchen caddy bags
- Some compostable mailer bags and satchels
- Certain compostable produce bags made from PBAT or Mater-Bi blends
- Select kraft-lined paper bags with home-compostable coatings
Rigid food service items — containers, cups, clamshells — almost universally carry AS 4736 rather than AS 5810, because the materials (bagasse, PLA) are engineered for the temperatures and mechanical processing of industrial composting. If a supplier claims their PLA cup is home compostable, ask to see the actual AS 5810 test report before accepting the claim.
Side-by-Side Comparison: AS 4736 vs AS 5810
| Criteria | AS 4736 (Industrial) | AS 5810 (Home) |
|---|---|---|
| Composting environment | Managed facility, 55–60°C | Backyard bin, 20–30°C |
| Biodegradation timeframe | 90% in 180 days | 90% in 12 months |
| Disintegration test | 90% through 2mm sieve in 12 weeks | Visually indistinguishable in 26 weeks |
| Ecotoxicity requirement | Yes — plant germination test | Yes — plant germination test |
| Heavy metals limits | Yes | Yes |
| Common certification logo | Seedling (ABAP-licensed) | Home Compostable (ABA) |
| Accepted in FOGO bins | Council-dependent (many yes) | Council-dependent (broader acceptance) |
| Accepted in home compost | No (in most cases) | Yes |
| Typical product types | PLA cups, bagasse containers, compostable bags | Caddy liners, produce bags, some mailers |
| Equivalent international standard | EN 13432, ISO 14855, ASTM D6400 | EN 14995 (home), NF T51-800 |
The Third Standard You Need to Know: AS 4631 Labelling
Often overlooked in buyer conversations, AS 4631 is the Australian Standard for labelling of compostable and biodegradable plastics. It governs what claims can be printed on packaging — for example, whether a product can display the word "compostable" or "biodegradable" and under what conditions. This standard is increasingly relevant as Australian state governments move toward mandatory truth-in-labelling requirements for environmental claims.
Under AS 4631, a product labelled "compostable" must specify what type of composting it is suitable for — industrial or home. Vague claims like "eco-friendly" or "breaks down naturally" without supporting certification are explicitly discouraged, and in some regulatory contexts, may constitute misleading conduct under the Australian Consumer Law (ACL), particularly following the ACCC's 2023 guidance on greenwashing.
What this means for buyers: When evaluating a supplier's claim that their product is "certified compostable," always ask: certified to which standard? Industrial or home? By which body? If they can't answer immediately, that's a red flag.
How These Standards Interact with Australia's Plastic Bans
Australia's state-by-state single-use plastics bans have created a patchwork of requirements that make certification literacy genuinely important for any food service business operating nationally.
New South Wales
NSW banned lightweight single-use plastic bags (under 35 microns) from 1 November 2022 and expanded bans to include produce bags and heavier single-use plastics from 1 November 2023. Certified compostable bags meeting AS 4736 or AS 5810 are an accepted alternative for many banned plastic formats, provided they carry appropriate certification. The NSW Environment Protection Authority has signalled further restrictions on plastic-lined food service items as part of the 2025–2026 regulatory agenda.
Victoria
Victoria's single-use plastics ban rolled out in stages from 1 February 2023, prohibiting items including plastic straws, stirrers, cutlery, plates, and cotton bud sticks. Victoria's legislation is notable for explicitly recognising certified compostable alternatives — products certified to AS 4736 or AS 5810 are generally permissible replacements where the banned plastic format has a compostable equivalent.
Queensland
Queensland expanded its plastics ban significantly from 1 September 2023, targeting heavyweight single-use plastic bags, plastic cutlery, plates, straws, and stirrers. The Queensland Government recognises certified compostable packaging as compliant under the ban framework, with AS 4736 certification being the primary benchmark referenced in departmental guidance materials.
South Australia
South Australia has historically been the most progressive Australian state on single-use plastics, with its ban on plastic straws, stirrers, and cutlery effective from 1 March 2021 and expanded categories following in subsequent years. SA also banned plastic soy sauce fish packets and similar novelty formats — a move that drew national attention. Certified compostable packaging meeting AS 4736 is well-established in the SA market.
Western Australia and ACT
Western Australia's single-use plastics ban commenced 1 January 2023, covering plastic straws, cutlery, plates, and expanded polystyrene food containers. The ACT introduced bans on similar items from 1 July 2022. Both jurisdictions permit certified compostable alternatives that meet Australian Standards.
National Packaging Targets (APCO 2025)
The Australian Packaging Covenant Organisation (APCO) has set a target that 100% of Australian packaging be reusable, recyclable, or compostable by 2025. While this is a voluntary industry target rather than hard law, it carries significant weight for major retailers, food service chains, and suppliers subject to APCO membership obligations. Certification to AS 4736 or AS 5810 is the primary pathway for packaging to qualify as "compostable" under the APCO framework.
FOGO Programs: Which Councils Accept Compostable Packaging?
FOGO (Food Organics and Garden Organics) bin programs are rolling out across Australian councils as part of the Federal Government's commitment to halving food waste by 2030. FOGO bins represent the most practical end-of-life pathway for certified compostable food service packaging in urban Australia — but acceptance of packaging (as opposed to food scraps) varies significantly by council.
General Council Acceptance Rules
- AS 5810-certified products (home compostable) are accepted by the broadest range of FOGO programs, because they break down effectively even when the industrial composting facility processes at lower temperatures or shorter cycle times.
- AS 4736-certified products are accepted by many — but not all — FOGO programs. Acceptance depends on whether the council's contracted processor can guarantee industrial composting conditions (55–60°C sustained for sufficient duration).
- Products that are not certified to either standard should never be placed in FOGO bins, even if they are labelled "biodegradable" or "eco-friendly." Non-certified materials frequently contaminate compost batches, causing entire loads to be rejected and sent to landfill.
Key Councils with Active FOGO Programs
Councils including Inner West Council (NSW), City of Melbourne, Brisbane City Council, and City of Adelaide have well-established FOGO programs. Most require that compostable packaging placed in FOGO bins display either the Seedling logo (AS 4736) or the Home Compostable logo (AS 5810). Many councils publish an approved materials list — always check your specific council's guidelines before advising customers or staff on disposal.
Practical recommendation: If you operate a café or restaurant that participates in a commercial organics collection program, confirm with your waste contractor which certifications they accept before specifying packaging. Some commercial processors accept only AS 4736; others accept both. Getting this wrong means your compostable packaging ends up as landfill contamination — defeating the entire purpose.
Real Product Comparison: Certification, Materials, and Cost
Understanding the standards is one thing; knowing how they apply to actual products you'll buy and use is another. Below is a practical comparison of common food service packaging formats, their typical certification status, material composition, and indicative wholesale price ranges.
| Product Type | Material | Typical Certification | Temp Rating | Wholesale Price Range (per unit) | FOGO Accepted |
|---|---|---|---|---|---|
| 8oz PLA cold cup | PLA bioplastic | AS 4736 | Up to 40°C | $0.08–$0.14 | Yes (industrial FOGO) |
| 8oz double-wall paper coffee cup | Kraft + PLA lining | AS 4736 | Up to 95°C | $0.18–$0.28 | Yes (industrial FOGO) |
| CPLA flat lid (suits 8–16oz) | Crystallised PLA | AS 4736 | Up to 85°C | $0.06–$0.10 | Yes (industrial FOGO) |
| 500ml bagasse container with lid | Sugarcane bagasse | AS 4736 | Up to 120°C | $0.22–$0.38 | Yes (most FOGO) |
| Compostable bin liner (10L) | PBAT/starch blend | AS 4736 + AS 5810 | Ambient | $0.12–$0.20 | Yes (home + industrial) |
| Wooden cutlery set (knife/fork/spoon) | FSC birchwood | No certification required | Ambient | $0.04–$0.09 | Yes (most FOGO) |
| Bagasse plate 9-inch | Sugarcane bagasse | AS 4736 | Up to 120°C | $0.15–$0.25 | Yes (most FOGO) |
| Compostable produce bag | PBAT/PLA blend | AS 5810 | Ambient | $0.03–$0.06 | Yes (home + industrial) |
| Conventional plastic clamshell | rPET/PP | N/A (recyclable, not compostable) | Up to 60°C | $0.10–$0.20 | No |
Price ranges above reflect typical Australian wholesale purchasing in quantities of 500–2,000 units. Volume pricing at 5,000+ units typically reduces per-unit cost by 15–25%. ZenPacks' full range of 700+ eco products covers all of the categories above, with bulk pricing available for businesses of all sizes.
How to Verify a Compostable Certification Claim
Greenwashing in packaging is a documented and growing problem in Australia. The ACCC's 2023 report on environmental claims found that a significant proportion of environmental marketing claims in the retail and food service sectors were misleading, unsubstantiated, or outright false. Here is a practical verification process for buyers:
Step 1: Ask for the Certificate, Not Just the Logo
Any legitimate supplier should be able to produce a certification document from ABAP, DIN CERTCO, TÜV Austria, or another accredited body. The certificate should specify: the product name, the standard it was tested to (AS 4736 or AS 5810), the test date, and the certification expiry. Logos printed on packaging without a corresponding certificate are not sufficient evidence of compliance.
Step 2: Check the ABAP Product Database
The Australasian Bioplastics Association maintains a searchable database of certified products. If a product claims AS 4736 certification, it should appear in this database. This is the fastest way to independently verify a supplier's claim without requesting documentation.
Step 3: Match Certification to Disposal Pathway
Even a legitimately certified product can be misused. AS 4736-certified cups placed in general waste bins or home compost will not decompose as intended. Always ensure your operational disposal pathway (FOGO, commercial organics, home compost) matches the certification type of the product you are purchasing.
Step 4: Watch for Partial Certification Claims
Some products claim their material is certified, but not the finished product. A cup body made from certified PLA, combined with a lid made from non-certified plastic, is not a certified compostable product. The entire item — including inks, coatings, lids, and adhesives — must be certified for the product to make a valid compostable claim.
What's Changing in 2026–2027: Forward-Looking Analysis
The certification landscape is not static. Several developments in the next 12–24 months will materially affect how Australian businesses source and dispose of compostable packaging.
Mandatory Compostable Labelling Requirements
Proposed amendments to state environmental protection legislation in NSW and Victoria are expected to make it mandatory for compostable packaging to clearly identify its certification standard (AS 4736 or AS 5810) on the product itself. This will make it easier for consumers and waste sorters to correctly dispose of items — but it also means non-compliant products will face greater regulatory exposure. Businesses using uncertified packaging labelled as "eco" or "green" face significant ACL risk.
Expansion of FOGO to More Councils
The Federal Government's National Food Waste Strategy has funded FOGO rollouts across hundreds of additional councils by 2027. As FOGO coverage expands, the end-of-life pathway for AS 4736-certified packaging will become accessible to a much larger proportion of Australian households and businesses. This materially improves the actual environmental outcome of using certified compostable packaging — and makes the certification investment more worthwhile.
Rising Standards for Industrial Composters
Australian industrial composting facilities are under increasing pressure to reject contaminated loads. Some processors are tightening their accepted materials lists, moving toward AS 5810 dual-certification requirements even for commercial streams. Buyers who specify dual-certified products now will be ahead of this curve.
Digital Product Passports and QR-Code Verification
Several major packaging certification bodies are piloting QR-code-based product authentication — scanning a code on the packaging takes you directly to the live certification record. This will make verification faster and more reliable, and is likely to become a standard expectation for B2B buyers within 2–3 years. If you're building or updating your business's online presence to showcase sustainability credentials, platforms like weauto — professional websites for Australian businesses from $99 make it straightforward to publish your packaging certifications and environmental commitments in a format customers and councils can verify easily.
Practical Guidance for Different Buyer Types
For Cafés and Coffee Shops
Your primary focus should be on coffee cups (single and double wall), lids, and takeaway containers. Specify AS 4736-certified cups and CPLA lids — these are the most widely stocked, cost-effective certified options. If your council operates FOGO collection, brief staff on correct bin sorting. Even in the absence of FOGO, using certified compostable cups positions your business correctly for upcoming mandatory labelling requirements.
For Restaurants and Food Courts
Bagasse containers are your workhorse — they handle hot food, grease, and liquid better than PLA, and they carry AS 4736 certification universally. For events and catering, bagasse plates and bowls paired with wooden or CPLA cutlery create a fully certified compostable serviceware suite. If your venue is undergoing a commercial kitchen fit-out that includes waste management infrastructure, ensure your licensed trade contractors — including any electrical work needed for composting equipment installation — are compliant; businesses like APX Trade Group — licensed electricians in Sydney handle commercial kitchen electrical compliance across Sydney.
For Event Caterers and Local Councils
Where you have control over the entire waste stream — as you do at a council-run event or stadium — the case for exclusively using AS 4736-certified serviceware and establishing a dedicated compostable waste stream is compelling. Provide clearly labelled bins, brief your waste contractor on accepted certifications, and ensure all packaging suppliers can provide certification documentation on request. This is not just an environmental best practice — it's increasingly a tender requirement for council event contracts.
For Sustainability Officers and Procurement Teams
Build a supplier scorecard that includes: certification standard (AS 4736, AS 5810, or both), certification body, expiry date, and whether the entire product — including lids, liners, and inks — is certified. Require certification documentation as a standard part of supplier onboarding. Align your packaging specification with your organisation's waste disposal pathways — not just with what's marketed as "eco-friendly."
Frequently Asked Questions
What is the difference between AS 4736 and AS 5810?
AS 4736 certifies packaging for industrial composting — high-temperature managed facilities operating at 55–60°C. AS 5810 certifies packaging for home composting — ambient temperatures of 20–30°C typical of a backyard bin. Both standards require biodegradation, disintegration, ecotoxicity testing, and heavy metals limits, but AS 5810 allows a longer breakdown period (12 months vs. 180 days) to reflect cooler composting conditions.
Can you put AS 4736-certified cups in a home compost bin?
Generally, no. Most AS 4736-certified products — including PLA cups — will not break down effectively in a home compost bin because the temperatures are too low. They require the sustained heat of an industrial composting facility. Only products carrying the AS 5810 (Home Compostable) certification should go in a home compost bin.
Can you put compostable cups in FOGO bins?
It depends on your council and their contracted composting processor. Many FOGO programs accept AS 4736-certified packaging, but not all — some require dual AS 4736 + AS 5810 certification, and others only accept food scraps and garden organics. Always check your specific council's accepted materials list before advising customers or staff.
Is compostable packaging really compostable — or is that just greenwashing?
Packaging certified to AS 4736 or AS 5810 by an accredited body (such as ABAP) is genuinely compostable under the conditions specified in those standards. The greenwashing problem arises with products that use the word "compostable" or "biodegradable" without proper certification — these claims are frequently misleading and may breach Australian Consumer Law. Always ask for the certification document, not just the logo.
Does certified compostable packaging cost significantly more than plastic?
The price gap has narrowed significantly. AS 4736-certified bagasse containers are now comparable in wholesale price to conventional plastic clamshells at volume. PLA cups carry a modest premium over standard plastic cups — typically 20–40% at equivalent volumes — but this gap is partially offset by waste disposal cost savings in businesses with commercial organics collection. For most cafés purchasing 5,000+ units per month, the switch to certified compostable packaging is cost-neutral or marginally more expensive, not prohibitive.
What does AS 4631 cover and why does it matter?
AS 4631 is the Australian Standard for labelling of compostable and biodegradable plastics. It sets rules for what claims can be printed on packaging — including the requirement that "compostable" claims specify the type of composting the product is suitable for. It's increasingly relevant as regulators tighten scrutiny of environmental marketing claims under Australian Consumer Law.
Are bagasse (sugarcane) products automatically certified compostable?
Bagasse is a naturally compostable material, but certification is not automatic. The finished product — including any coatings, liners, or inks — must be tested and certified as a whole. Reputable suppliers will carry AS 4736 certification for their bagasse range. Always request the certificate, particularly for products with laminated or coated surfaces.
Will AS 4736 certification satisfy compliance with Australian state plastics bans?
In most states, yes — AS 4736-certified packaging is recognised as a compliant alternative to banned single-use plastic formats, provided the certified compostable product is functionally equivalent to the banned item. However, regulations evolve, and each state's guidance documents should be checked directly. NSW, VIC, QLD, SA, WA, and the ACT all have published guidance on accepted compostable alternatives under their respective bans.
Sourcing Certified Compostable Packaging in Australia
Understanding certification is valuable; finding a reliable wholesale supplier who can actually provide certified products — with documentation — is the practical next step. The Australian certified compostable packaging market has matured considerably since 2020, and wholesale prices have become genuinely competitive, particularly for high-volume buyers in hospitality and food service.
ZenPacks supplies over 700 certified eco-friendly packaging products wholesale across Australia, with stock held in Sydney for fast dispatch. Every product in the range that carries a compostable claim is backed by documentation — certification standard, certifying body, and test reports available on request. Whether you're equipping a single café or managing procurement for a multi-site food service operation, the team can help you match the right certification to your specific disposal pathway and volume requirements.
If you're ready to move beyond guesswork and source packaging you can actually stand behind — to your customers, your council, and your sustainability auditors — contact ZenPacks for wholesale pricing and certification documentation on any product in the range. Sydney-based stock means fast turnaround for urgent orders, and the buying team is available to advise on which certification suits your specific waste stream situation.
