Councils, tenders and increasingly customers themselves are asking businesses to prove their waste handling is genuinely sustainable, not just labelled that way. Switching kitchens, offices and food service areas over to compostable bin liners is one of the more visible ways an Australian business can back that up, particularly anywhere food waste or organics collection is involved.
Compostable bags are often confused with standard “biodegradable” or degradable plastic bags, and the difference matters both for compliance and for whether the bag actually breaks down the way a business expects. Here is what to check before switching.
Compostable vs Biodegradable: They Are Not the Same Thing
A “biodegradable” or “degradable” plastic bag is often still a conventional plastic with an additive that helps it fragment into smaller pieces over time — it does not necessarily break down into non-toxic, natural material. A genuinely compostable bag, by contrast, is made from plant-based materials such as cornstarch and is designed to break down fully in a composting environment, leaving no microplastic residue behind. For businesses using organics or food waste collection bins, this distinction is not just marketing detail — many councils and waste contractors will only accept certified compostable liners in organics streams, and will reject bags that are simply labelled “degradable.”
What Certification Should You Look For?
The most reliable indicator on an Australian compostable bag is a recognised compostability certification, which confirms the bag has been independently tested to break down within a set timeframe under composting conditions. Businesses sourcing bags for organics or food waste bins should confirm this certification directly with a supplier rather than relying on general “eco” language on the packaging, since certification requirements can differ between home composting and industrial composting facilities.
Where Compostable Bin Liners Make the Most Sense
Compostable liners are most commonly used in kitchens, cafes, food courts and hospitality venues where food scraps and organic waste are separated from general rubbish, since this is where councils are increasingly requiring certified compostable bags rather than standard liners. They also suit offices and facilities running dedicated sustainability programs, where switching general waste bins over signals a broader commitment even outside strict organics requirements. Our guides to clear bin liners, choosing the right bin liner size and buying bin liners in bulk cover the rest of the decisions facilities managers tackle when restocking waste areas. Look for products certified to the relevant compostability standard — the Australasian Bioplastics Association maintains the certification scheme behind genuine compostable claims.
Do Compostable Bags Perform as Well as Standard Liners?
Modern compostable bags have improved considerably and are generally suitable for standard kitchen and office waste volumes, though they are usually not designed for the same heavy-duty loads as thick industrial polyethylene liners. For general waste, food scraps and organics bins, performance is comparable; for construction waste, heavy liquids or sharp materials, a standard heavy-duty liner is still the more practical choice.
Frequently Asked Questions
Are compostable bin liners the same as biodegradable bags?
No. Biodegradable or degradable bags are typically conventional plastic that fragments over time, while certified compostable bags are made from plant-based materials designed to break down fully without leaving microplastic residue.
Do I need compostable bags for organics waste collection?
Many Australian councils and commercial waste contractors require certified compostable liners for organics and food waste bins, and will not accept standard plastic or “degradable” bags in these streams. It is worth confirming requirements with your waste contractor directly.
Are compostable bin liners strong enough for commercial kitchens?
Yes, for general food waste and kitchen scraps, compostable liners generally perform well. For heavier or sharper waste, a standard heavy-duty liner is usually still the more practical option.
How can I confirm a bin liner is genuinely compostable?
Look for a recognised, independently verified compostability certification from the supplier rather than relying on general “eco-friendly” wording on the packaging.
Ready to Switch to Compostable Bin Liners?
Nova Cleaning Supplies stocks certified compostable and biodegradable bin liners for kitchens, offices and food service businesses across Australia. Contact us to find the right size and quantity for your waste streams.
