Australia’s green-lidded bins help turn food and garden waste into useful compost. However, placing the wrong bag in your green bin can contaminate the entire collection.
Why Plastic Bags Do Not Belong in Green Bins
Ordinary plastic bags do not break down during composting. They can leave plastic fragments in finished compost and may cause otherwise usable organic material to be rejected.
“Biodegradable” bags are not necessarily suitable either. Unless a bag carries recognised compostability certification, it should not be treated as compostable.
Are Compostable Bags Accepted?
Certified compostable bags may be accepted in green Food Organics and Garden Organics—or FOGO—bins, but Australian requirements vary between councils.
For example, Western Australia’s current FOGO guidance allows caddy liners displaying the AS 4736 Seedling logo. Other councils may require food scraps to be placed loose in the bin or may accept only council-supplied liners.
Certification under AS 4736 relates to commercial composting, while AS 5810 relates to home composting. Certification confirms that a product meets a compostability standard; it does not automatically mean every council will accept it.
Could Using the Wrong Bag Lead to a Fine?
Incorrectly using a green bin may result in:
- A contamination sticker or warning
- The bin not being collected
- Suspension of the collection service
- Additional charges or an infringement in some council areas
There is no single nationwide household fine for placing a plastic bag in a green bin. Enforcement and financial consequences depend on your council’s waste rules.
Using an accepted certified compostable liner reduces contamination risk, but it cannot guarantee that a warning or fine will never be issued. The bag and its contents must both comply with local requirements.
How to Use Compostable Bags Correctly
Before placing a compostable bag in your green bin:
- Check whether your council operates a FOGO or garden-waste-only service.
- Confirm that certified compostable liners are accepted.
- Look for the certification required by your council, commonly AS 4736.
- Confirm that the contents—particularly pet waste—are permitted.
- Never place compostable bags in the yellow recycling bin.
Bonnie Bio provides certified compostable alternatives to conventional plastic bags. Always follow the disposal instructions on the product and your local council’s current green-bin guidelines.
Choose Better Bags—and the Correct Bin
Certified compostable bags can support responsible organic-waste collection when they are accepted by the local composting system. Checking your council’s rules takes only a moment and helps prevent contamination, rejected bins and possible penalties.
Explore Bonnie Bio’s range of compostable bags and bin liners.
