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Our Journey
Certified, Traceable & Verified.
Anyone can print a logo, but only genuine certification has a unique ABAP License Number. This number is the only way to verify a product's compostability under Australian Standards (AS 4736 & AS 5810).
Don't risk contamination. Check the number.
🔗 Verify our certification with the ABA
How to Verify:
Enter one of our Licence Numbers (e.g. 10606 or 20458) in the search bar.
Note: Certification is listed under Guarden. Compostar is Guarden’s official direct-to-consumer brand, supplying genuine, factory-direct certified products.
Designed for Food Waste Collection in Green Bin Systems
Compostar liners are certified to AS 4736 industrial composting standards, supporting food waste diversion where liners are accepted.
Our liners meet recognised compostability requirements across Australia, including NSW and VIC, and are designed to work within food and garden organics collection systems.
(Always check your local council guidelines for green bin acceptance.)
The Compostar Effect: Your Yearly Impact
500kg CO2-e Saved
By composting food scraps instead of landfilling them, you stop methane emissions. That's equivalent to taking a petrol car off the road for 2 months.
Save 45m² of Aussie Land Every Year
The average household creates a plastic footprint the size of a studio apartment annually. Don't let it sit in a landfill forever. By switching to Compostar, you stop the sprawl and return clean nutrients to our soil.
0g Microplastics
Unlike "biodegradable" plastic bags that shatter into toxic bits, Compostar breaks down completely. Zero plastic left in our soil.
Eucalyptus Initiative🌿
Your purchase grows hope.
We donate 5% of every purchase on your behalf to support animal protection and conservation initiatives, including endangered species rescue and wildlife preservation programs.
This is your impact. Thank you for standing with us for nature.
Warming Australia. Real consequences.
2026 Victorian bushfires are not a coincidence — they are a consequence of a warming climate.
Carbon emissions are the root driver of global warming. Beyond fossil fuels, industrial pollution, and deforestation, high-carbon linear consumption — especially plastic waste — continues to fuel climate disasters.
Australia's warming reality:
• Since 1910, average temperatures have risen by ~1.51°C
• Every decade since the 1950s has been warmer than the last — a 70+ year accelerating trend
At around 1.5°C of warming, severe climate impacts are already here — with escalating bushfire risk among the most devastating.