Two Certifications, Two Completely Different Outcomes
Here is a fact that catches out even experienced procurement managers: a package stamped "compostable" does not automatically break down in your council bin, your café's FOGO collection, or your backyard heap. Whether it actually decomposes — or sits intact in a processing facility for months before being rejected as contamination — depends entirely on which composting standard it was certified to.
In Australia, two distinct standards govern compostable packaging: AS 4736 (industrial/commercial composting) and AS 5810 (home composting). They share a name — "compostable" — but they demand radically different conditions to fulfil that promise. Choosing the wrong one for your disposal pathway wastes money, causes contamination events, and in some jurisdictions can now expose your business to regulatory risk under single-use plastics bans that specifically require end-of-life verification.
This article breaks down exactly what separates AS 4736 from AS 5810, which materials meet each standard, what council and commercial composting programs accept, and how to build a packaging specification that actually closes the loop — whether you run a suburban café, manage a hospital kitchen, or procure for a local council events program.
What Australian Standards Actually Require
AS 4736 — Industrial Composting (the dominant standard)
AS 4736-2006 is Australia's standard for biodegradable plastics suitable for composting and other microbial treatment. It is the certification required for most commercial and council organics processing facilities, and it is the standard referenced in the majority of state single-use plastics legislation when "compostable" alternatives are specified.
To achieve AS 4736 certification, a material must satisfy all of the following under controlled laboratory and pilot-scale conditions:
- Disintegration: ≥90% of material must pass through a 2mm sieve within 12 weeks at composting temperatures
- Biodegradation: ≥90% conversion to CO₂ within 180 days at 58°C (±2°C) — the operating temperature of industrial compost windrows
- Ecotoxicity: the resulting compost must support plant growth equivalent to a blank compost control (no toxic residues)
- Heavy metals: concentration limits for cadmium, lead, mercury, chromium, and six other metals must be met
- Volatile solids: no more than 10% of original dry mass may remain after testing
The critical word in that second point is 58°C. Industrial composting facilities actively manage temperature, moisture, oxygen, and carbon-to-nitrogen ratios to sustain thermophilic microbial activity. A backyard compost heap — even a well-maintained one — rarely sustains those temperatures for the duration required. This is precisely why AS 4736 packaging frequently fails to break down outside an industrial facility.
AS 5810 — Home Composting (the higher bar)
AS 5810-2010 is Australia's standard for biodegradable plastics suitable for home composting. It is the more demanding certification in practical terms, because it must work at ambient environmental conditions without external thermal management.
Key requirements under AS 5810:
- Disintegration: ≥90% through a 2mm sieve within 26 weeks (compared to 12 weeks under AS 4736)
- Biodegradation: ≥90% conversion to CO₂ within 12 months at 20–30°C — reflecting real-world backyard heap temperatures
- Ecotoxicity and heavy metals: same thresholds as AS 4736
- Lower temperature operation: testing is conducted at ambient temperatures, meaning the material must biodegrade without the thermal activation that industrial facilities provide
AS 5810 certification is significantly harder and more expensive to achieve, and far fewer products on the market carry it. When you see a product certified to AS 5810, it will also — by definition — compost under industrial conditions (since those are easier), but the reverse is not true.
AS 4631 — Compostable Labelling
AS 4631 governs how compostable products are labelled and marketed in Australia. It requires that packaging labelled "compostable" must be certified to either AS 4736 or AS 5810, and that the label must clearly indicate which standard applies. Products claiming industrial composting must not be labelled in a way that implies home compostability — a requirement that is frequently violated by imported products, particularly those certified only to European EN 13432 without an Australian equivalent.
Practical implication: if a supplier cannot show you a current certificate from an accredited body (such as Australasian Bioplastics Association certification, or equivalent), treat their "compostable" claim with scepticism.
Side-by-Side Comparison: Every Metric That Matters
| Criteria | Home Compostable (AS 5810) | Industrial Compostable (AS 4736) | Biodegradable (no standard) | Conventional Plastic |
|---|---|---|---|---|
| Australian Standard | AS 5810-2010 | AS 4736-2006 | None mandated | N/A |
| Required temperature | 20–30°C (ambient) | 58°C (thermophilic) | Varies / uncontrolled | Does not biodegrade |
| Disintegration timeframe | ≤26 weeks | ≤12 weeks | Unknown / no guarantee | 200–500+ years |
| Biodegradation timeframe | ≤12 months | ≤6 months | Unknown / no guarantee | Does not biodegrade |
| Accepted in FOGO bins? | Some councils — check locally | Selected councils — varies widely | Rarely / usually rejected | No |
| Backyard compost viable? | Yes | No (typically) | No | No |
| Ecotoxicity tested? | Yes (mandatory) | Yes (mandatory) | No standard testing | No (known toxicity) |
| Typical product premium vs plastic | 30–70% higher | 20–50% higher | 5–25% higher | Baseline |
| Common materials | Certified cellulose films, some kraft laminates | Bagasse, PLA, CPLA, bamboo, kraft | OXO-degradable plastics, unverified bio-resins | PP, PS, PET, PE |
| State plastics ban compliance | Yes (where bans apply) | Yes (where bans apply) | Generally no | Banned for targeted items |
Materials: What's Certified to What, and Why It Matters
Bagasse (Sugarcane Fibre)
Bagasse — the fibrous residue left after sugarcane juice extraction — is the most widely used material in Australian certified compostable food service packaging. It is routinely certified to AS 4736 for plates, bowls, clamshell containers, and portion cups. Bagasse products are naturally plant-based and mineral-free, which means they typically pass ecotoxicity testing with ease.
Temperature rating: most bagasse containers handle liquids up to 95°C and oven temperatures up to 200°C (short-term). Grease resistance is inherent to the compressed fibre structure. Standard pack quantities at wholesale: plates in 125–500 units per carton; containers in 200–500 units. Wholesale unit pricing in Australia typically ranges from $0.12–$0.45 per unit depending on size and volume.
Bagasse is not generally certified to AS 5810 — the denser compressed fibre takes longer to fragment at ambient temperatures than the standard allows. However, in practice, bagasse breaks down quickly in well-maintained warm compost heaps.
PLA (Polylactic Acid)
PLA is a bioplastic derived from fermented plant starch (typically corn or cassava). It is the material most commonly used for compostable cold cups, lids, and clear deli containers in Australian food service. PLA is certified to AS 4736 — it requires industrial composting temperatures of 55–60°C to initiate hydrolysis and subsequent microbial breakdown. At ambient temperatures, PLA is essentially stable, which is why it is useful as a packaging material but problematic if it ends up in home compost or — worse — the environment.
If a customer puts a PLA cup in their home compost heap expecting it to disappear, it will still be there 12 months later. This is one of the most common consumer confusion points around compostable packaging, and it has driven significant contamination events in council FOGO streams. Wholesale PLA cold cup pricing (8oz–16oz): approximately $0.08–$0.18 per unit at volume.
CPLA (Crystallised PLA)
CPLA is a heat-crystallised form of PLA used for hot cup lids, cutlery, and other items that require elevated temperature resistance (up to approximately 85–90°C). CPLA is typically AS 4736 certified. It carries the same composting pathway limitations as standard PLA — industrial only. Wholesale CPLA cutlery sets: approximately $0.04–$0.12 per piece at volume.
Kraft Paper and Paper-Based Products
Plain unbleached kraft paper is home compostable without any certification needed — it is simply cellulose. However, most food service kraft paper products (bags, cups, containers) involve coatings or linings that change this picture considerably. A kraft paper cup with a PLA lining is industrially compostable to AS 4736. A kraft paper cup with a conventional PE lining is neither compostable nor recyclable without specialist processing. A kraft bag with a wax or silicone coating may not be compostable at all.
Buyers must check the coating or lining specification, not just the outer material. Our full range of 700+ eco products includes clearly labelled kraft items specifying their coating type and certification status, which removes the guesswork from procurement decisions.
Bamboo
Bamboo fibre products — plates, cutlery, bowls — are typically certified to AS 4736 and perform similarly to bagasse. Pure bamboo without binders or coatings can also break down under home composting conditions, though this varies by product density and form factor. Bamboo cutlery wholesale pricing: approximately $0.04–$0.10 per piece at volume.
Cellulose Film and Bio-laminates
Certified compostable cellulose film (used in bag closures, window patches, and overwrap) is one of the few materials that can achieve AS 5810 home composting certification. High-quality certified cellulose films from manufacturers like Innovia or Futamura NatureFlex carry dual certification (home and industrial). These are used in premium compostable bag products. Expect a significant price premium over PLA film alternatives.
The FOGO Question: Which Councils Actually Accept Compostable Packaging?
Australia's rollout of FOGO (Food Organics Garden Organics) bin collections is one of the most significant infrastructure changes for compostable packaging in a decade. Under the National Waste Policy and state targets, the majority of Australian metropolitan councils are being required to implement FOGO collection, with most state targets pointing to full rollout between 2025 and 2030.
However — and this is critical — not all FOGO programs accept compostable packaging, even AS 4736-certified products. Acceptance depends on the end processing facility's capabilities and certifications. Here is a simplified breakdown of the current landscape:
Councils and Facilities That Generally Accept AS 4736 Certified Packaging in FOGO
- Facilities operating in-vessel composting or aerated static pile systems that sustain 55–60°C are typically equipped to process AS 4736 materials correctly
- Several Sydney metro councils including some in the Inner West and Northern Beaches LGAs have confirmed acceptance of certified compostable packaging in FOGO — always verify with your specific council
- Some Victorian metropolitan councils in the Port Phillip and Yarra areas accept certified compostable serviceware in FOGO streams
Councils That Do Not Accept Compostable Packaging in FOGO
- Councils using open windrow composting without temperature management may reject compostable packaging due to incomplete breakdown timelines
- Councils whose FOGO output goes to anaerobic digestion (AD) facilities — which produce biogas — cannot process compostable packaging in the same stream
- Many regional and rural councils do not yet have FOGO infrastructure at all
The practical recommendation for food businesses: call your council's waste team directly and ask specifically whether AS 4736-certified compostable packaging is accepted in the FOGO stream, and what the end processing facility is. Do this before committing to a packaging specification, not after. If your council does not accept compostable packaging in FOGO, your best disposal pathway is likely a commercial composting service contract — available through operators like Compost Connect, Garden City Worm Farm, or similar regional services.
State Plastics Bans: What's Required, When, and for Whom
Understanding how compostability standards intersect with state single-use plastics legislation is essential for compliance. Here is a summary of the key bans across Australian jurisdictions relevant to food service packaging:
| State/Territory | Key Items Banned | Compostable Exemption? | Effective / Key Dates |
|---|---|---|---|
| NSW | Lightweight plastic bags, plastic straws, stirrers, cutlery, plates, bowls, cotton bud sticks, expanded polystyrene food containers and cups | Yes — certified compostable alternatives permitted for most categories | Phase 1: 1 Nov 2022; Phase 2 (produce bags, more EPS): 1 Nov 2025 |
| VIC | Plastic straws, stirrers, cutlery, plates, drink picks, expanded polystyrene food/drink containers | Yes — AS 4736 or AS 5810 certified alternatives permitted | Phase 1: Feb 2023; Phase 2: Feb 2024 |
| QLD | Plastic straws, cutlery, plates, bowls, expanded polystyrene cups and containers, plastic produce bags | Yes — compostable alternatives permitted | Phase 1: 1 Sep 2021; Phase 2: 1 Sep 2023 |
| SA | Broadest ban — plastic cutlery, straws, stirrers, plates, drink containers, balloon sticks, expanded polystyrene food serviceware | Yes — certified compostable alternatives permitted | Staged from 1 Mar 2021; further items from 2022–2023 |
| WA | Plastic bags, straws, cutlery, plates, expanded polystyrene food containers | Yes — certified compostable alternatives permitted | Stage 1: 1 Jul 2022; Stage 2: 1 Jan 2023 |
| ACT | Plastic bags, straws, cutlery, plates, bowls, expanded polystyrene food containers, coffee cups | Yes — with certification requirements | Staged from 1 Apr 2021 |
| NT | Plastic bags, straws, cutlery, polystyrene food containers | Yes — compostable alternatives permitted | From 2022 |
| TAS | Plastic straws, cutlery, plates, bowls, expanded polystyrene food containers | Yes — certified compostable alternatives permitted | Staged from 2023 |
One important nuance: most state legislation requires that packaging labelled as compostable must actually meet an Australian Standard (AS 4736 or AS 5810) or an equivalent recognised international standard. Simply printing "eco-friendly" or "plant-based" on packaging does not satisfy these requirements, and enforcement — while still maturing — is increasing.
The National Packaging Targets 2025, administered by the Australian Packaging Covenant Organisation (APCO), set a goal that 100% of Australian packaging should be reusable, recyclable, or compostable by 2025. While this is a voluntary industry target rather than a legal mandate, it shapes procurement decisions for major retailers, food manufacturers, and increasingly, local councils assessing event permit conditions.
Cost Analysis: What You're Actually Paying Per Unit
The cost premium for certified compostable packaging over conventional plastic is real, but it is narrowing — and when you factor in waste disposal costs, regulatory compliance risk, and brand positioning value, the total cost of ownership calculation shifts considerably.
Wholesale Price Ranges — Australian Market (2024–2025)
| Product Category | Conventional Plastic | Industrial Compostable (AS 4736) | Home Compostable (AS 5810) | Premium vs Plastic |
|---|---|---|---|---|
| 8oz coffee cup (paper/PLA) | $0.05–$0.09 | $0.09–$0.16 | $0.14–$0.22 | +40–80% |
| Flat lid (CPLA, suits 8–16oz) | $0.03–$0.06 | $0.05–$0.10 | Rarely available | +30–70% |
| 500ml cold cup (PLA) | $0.04–$0.08 | $0.08–$0.15 | Limited availability | +50–80% |
| Bagasse clamshell container (750ml) | $0.06–$0.10 | $0.18–$0.35 | Not typically certified | +80–200% |
| Bagasse plate (9 inch) | $0.04–$0.07 | $0.12–$0.22 | Not typically certified | +80–200% |
| Compostable cutlery set (fork/knife/spoon/napkin) | $0.03–$0.06 | $0.06–$0.14 | $0.10–$0.20 | +50–150% |
| Compostable bag (medium, certified) | $0.02–$0.04 | $0.05–$0.10 | $0.08–$0.15 | +50–200% |
These are indicative wholesale ranges for Australian buyers purchasing at volume (typically carton quantities of 200–1,000+ units). Unit prices drop materially at higher volumes — a café purchasing 50,000 units per year will pay meaningfully less per unit than one purchasing 5,000. For current pricing across all categories, ZenPacks publishes live wholesale pricing on product pages.
The Hidden Cost Offset: Waste Disposal Savings
For businesses running a commercial composting contract or operating within a council FOGO collection area, switching to certified compostable packaging can reduce landfill waste volume and — in some cases — reduce waste collection costs. A large event venue generating significant food waste can redirect entire bins from general waste (higher disposal cost per tonne) to organic waste streams. Quantifying this saving requires a site-specific audit, but it is a legitimate part of the total cost calculation that many buyers overlook.
Choosing the Right Standard for Your Business Model
The decision between AS 4736 and AS 5810 is not always a free choice — it is determined by your disposal pathway. Here is a practical decision framework:
Choose Industrial Compostable (AS 4736) when:
- Your council operates FOGO collection and your local processing facility confirms acceptance of AS 4736-certified materials
- You have a commercial composting contract with a certified facility
- You operate a large venue (stadium, hospital, university) with an on-site or dedicated composting arrangement
- You need the widest product range — virtually all certified compostable food service packaging in Australia is AS 4736
- Compliance with state plastics bans is the primary driver — AS 4736 satisfies requirements in all jurisdictions
Choose Home Compostable (AS 5810) when:
- Your customers are residential consumers who will take packaging home and compost it themselves
- You supply packaging for food box delivery, meal kit services, or e-commerce food brands where the end user has a home compost setup
- Your council's FOGO is accepted at a facility that specifically validates AS 5810 materials
- You sell into premium / zero-waste retail markets where home compostability is a meaningful differentiator
- Your packaging includes flexible films, liners, or closures where AS 5810-certified cellulose film is technically appropriate
What About Businesses with No Composting Pathway?
This is the uncomfortable reality for many small hospitality operators in regional areas or councils without FOGO: if your waste goes to landfill, certified compostable packaging will not compost. It will still break down faster than conventional plastic and avoids toxic additives, but it will not deliver the end-of-life benefit the certification promises. In these circumstances, switching to compostable packaging is still valuable for regulatory compliance and brand positioning — but pair it with genuine advocacy for council FOGO rollout, and consider a commercial composting contract if volumes justify it.
When fitting out a new hospitality venue, the waste management infrastructure — bin placement, FOGO collection access, back-of-house separation systems — should be planned at the same time as the kitchen fit-out. If you're working with trade contractors on a new venue build, specialists like APX Trade Group — licensed electricians in Sydney can advise on the electrical fit-out requirements for waste processing equipment, refrigeration units, and energy management systems that support a sustainable kitchen operation.
What's Changing in 2026–2027: Emerging Pressures Buyers Should Prepare For
The Australian compostable packaging landscape is shifting faster than most buyers realise. Here are the trends that should inform procurement decisions made today:
Stricter Labelling Enforcement
State environmental protection authorities are beginning to enforce AS 4631 labelling requirements more actively. Products claiming compostability without valid Australian Standard certification are increasingly being flagged. Buyers who have relied on imported packaging with only European EN 13432 certification — without an equivalent Australian assessment — should seek products that explicitly cite AS 4736 or AS 5810.
FOGO Coverage Expanding Rapidly
The NSW Government's target for universal FOGO collection across Greater Sydney by 2030 — supported by capital investment in processing infrastructure — means that within five years, the majority of Sydney metro businesses will have a viable end-of-life pathway for AS 4736-certified packaging. Getting specifications right now positions businesses ahead of this infrastructure curve. Similar timelines are playing out in Melbourne, Brisbane, and Adelaide.
Extended Producer Responsibility (EPR) Schemes
APCO's packaging EPR framework, currently in development, will eventually require producers and importers to fund end-of-life collection and processing for packaging. Compostable packaging that is certified and accepted in established infrastructure streams is likely to attract lower EPR contribution rates than packaging without a verified disposal pathway. Early movers who build certified compostable specifications into their supply chains will be better positioned when EPR cost signals kick in.
AS 4736 Standard Review
Standards Australia periodically reviews AS 4736 and AS 5810. Industry observers are watching for potential updates that may tighten biodegradation or disintegration timelines, or introduce new requirements around microplastic residue testing — an area of growing regulatory attention globally. Buyers with long-term packaging contracts should include a provision for specification updates if underlying standards change.
Digital Product Passports and Traceability
Major food retailers and quick-service restaurant chains are beginning to require digital traceability data for packaging — including certification numbers, batch records, and end-of-life instructions in machine-readable formats. If your business sells through these channels or aspires to, ensuring your packaging supplier can provide certification documentation digitally is becoming a procurement necessity rather than a nice-to-have. For food businesses looking to build a professional online presence that reflects their sustainability commitments, weauto — professional websites for Australian businesses from $99 offers an accessible starting point for digital brand presence without enterprise-level costs.
Frequently Asked Questions
Is compostable packaging really compostable?
Yes — but only under the specific conditions its certification requires. Packaging certified to AS 4736 is genuinely compostable in an industrial composting facility operating at 55–60°C. Packaging certified to AS 5810 is compostable in a home heap at ambient temperatures. Neither certification guarantees breakdown in landfill, in the ocean, or in a bin that goes to general waste. The compostable claim is real; the conditions are just more specific than most consumers realise.
What is the difference between AS 4736 and AS 5810?
AS 4736 is Australia's standard for industrial composting — requiring 58°C and breakdown within 6 months. AS 5810 is the home composting standard — requiring breakdown at ambient temperatures (20–30°C) within 12 months. AS 5810 is the harder standard to achieve and applies to a much smaller range of products. Both standards require ecotoxicity testing and heavy metal limits.
Can you put compostable cups in FOGO bins?
It depends entirely on your council and the processing facility they use. Some councils with in-vessel or aerated static pile composting infrastructure accept AS 4736-certified cups in FOGO. Many do not, because their facility's processing time or temperature is insufficient, or because they use anaerobic digestion rather than composting. Always confirm directly with your council's waste team before communicating FOGO disposal instructions to customers.
Does home compostable packaging cost more than industrial compostable?
Generally yes — AS 5810-certified products carry a 20–40% premium over equivalent AS 4736 products, because fewer manufacturers produce them and the certification process is more costly. The product range is also narrower, particularly for rigid containers and cups. If home composting is not your actual disposal pathway, paying the AS 5810 premium provides no practical benefit.
Is PLA packaging compostable at home?
Standard PLA is not home compostable. It requires industrial temperatures of 55–60°C to initiate breakdown and is only certified to AS 4736. If you put a standard PLA cup in a home compost heap, it will remain essentially intact for years. Some specialised PLA blends are formulated for home composting, but these are uncommon in Australian food service packaging — always check the certification on the specific product, not the material category.
Can I use European EN 13432 certified packaging in Australia?
EN 13432 is broadly equivalent to AS 4736 in its technical requirements, and many Australian regulators and composting facilities accept EN 13432-certified products. However, Australian state plastics ban legislation specifically references Australian Standards, and some council FOGO programs require AS 4736 explicitly. To be certain of compliance across all contexts, source products with AS 4736 or AS 5810 certification where possible. Ask your supplier for a current certificate, not just a logo on the packaging.
What happens to compostable packaging in landfill?
Compostable packaging in landfill does not compost — landfill is anaerobic (oxygen-deprived), cold, and compressed. Even certified compostable materials will break down extremely slowly in landfill, much like conventional materials. Some may produce methane as they degrade anaerobically, which is a greenhouse gas. The environmental benefit of compostable packaging is only realised when it is composted through the correct pathway — this is why infrastructure access matters as much as the packaging specification itself.
How do I verify that a supplier's compostable products are genuinely certified?
Ask for the current certification certificate from the accredited certifying body — in Australia, the Australasian Bioplastics Association (ABA) issues the seedling logo and underpins most AS 4736/AS 5810 certifications. The certificate should show the specific product, the certifying body, the standard it was tested to, and a valid expiry date. Logos printed on packaging without a verifiable certificate should be treated with caution, particularly for imported products.
Sourcing Certified Compostable Packaging at Wholesale Scale
Navigating the distinction between AS 4736 and AS 5810 is the foundational decision in any certified compostable packaging specification. Getting it wrong means contaminating composting streams, paying for certifications your disposal pathway cannot utilise, or — increasingly — falling foul of state environmental labelling requirements.
ZenPacks supplies food businesses, hospitality operators, councils, and event managers across Australia with certified compostable packaging at competitive wholesale pricing. Every product in our range is clearly specified with its material, certification status, temperature rating, and appropriate disposal pathway — so your procurement team and your customers both know exactly what they're buying and how to dispose of it correctly.
Browse our full range of 700+ eco products — from AS 4736-certified bagasse plates and bowls to PLA cold cups and CPLA cutlery — with live wholesale pricing and fast dispatch from our Sydney warehouse. Whether you're specifying for a single café or a council-wide events program, our team can assist with product selection, certification documentation, and volume pricing that works for your operational scale.
Contact ZenPacks directly to discuss your packaging requirements, request certification documentation for specific products, or explore volume pricing for your category.