FAQ's

Ships within 1-3 business days of purchase.

Due to the hygiene nature of our products, we do not accept returns for change of mind.

If you receive a product with quality issues (e.g., damaged, defective), please contact our customer service team online or via news@compostar.com.au within 7 days of receipt, and provide relevant photos or video as evidence.

Please contact us via email or our online customer service, and we shall liaise with the logistics provider.

Most council-supplied kitchen caddies hold 7–10 litres. Our 5L Self-Standing Paper Bags are designed to fit snugly inside standard caddies, or stand independently on your benchtop without one. For larger households or those emptying less frequently, our 10L bin liners offers extra capacity. If you're lining your outdoor wheelie bin, our 120L bags are the right fit.

We recommend emptying your caddy every 2–3 days, especially in summer. Even with Compostar's breathable paper technology reducing moisture by up to 44%, warmer temperatures accelerate the breakdown of meat and dairy. Emptying frequently keeps your kitchen fresh and gives fruit flies and maggots fewer chances to establish.

Some odour is natural as food breaks down, but it shouldn't be overwhelming. If you're noticing strong smells quickly, the most common causes are: meat or seafood scraps sitting uncovered, a caddy that isn't being emptied every 2–3 days, or a bag that isn't breathable (trapping moisture and accelerating anaerobic rot). Compostar paper bags allow moisture to evaporate, which significantly slows this process. Sprinkling a pinch of bicarb soda at the bottom of the bag can also help on hot days.

Yes. Our bags are certified to AS 4736, which means they are approved to break down in both backyard compost heaps and worm farms. The paper material adds beneficial carbon to your compost and will not introduce microplastics or toxic residues into your worm environment.

Both are AS 4736 certified and fully compostable. The key difference is performance and feel:

• Paper bags (5L): Breathable, self-standing, best for odour and moisture control. Ideal for kitchen benchtops and summer use.
• Cornstarch film liners (8L, 10L, 120L): Softer, more flexible, traditional bin-liner feel. Better for larger volumes and wheelie bins where a fitted shape matters.

If stopping bin juice and odour is your priority, paper is the better choice. If you want a large-capacity liner for your outdoor FOGO bin, film is more practical.

Absolutely — this is one of the best tips for managing meat, fish, and seafood scraps, especially in summer. Freeze them in a small container or wrapped in newspaper until the night before your FOGO collection. This eliminates odour almost entirely and prevents maggots from hatching. Just transfer the frozen scraps into your Compostar bag on bin night.

Certification to AS 4736 verifies that a plastic product will fully break down in an industrial composting environment, ensuring it is truly compostable.

For a product to be certified, it must completely break down and return to nature within six months in an industrial composter, starting with fragmentation within 12 weeks.

AS 5810 has two distinct meanings: it can refer to the Australian Standard for home compostable plastics, or to a specific Trim-Tex architectural "Z"shadow bead.

The Australian Standard AS 5810 pertains to home compostability, whereas the Trim-Tex AS 5810 is a decorative building materialfor drywall.

Absolutely! Thanks to our 72-hour waterproof and puncture-resistant technology, our liners are highly recommended for outdoor activities.

• For Camping: They lock in odors and prevent "bin juice" from leaking in your vehicle or tent.
• For Gatherings: They are strong enough to handle heavy volumes of food scraps from BBQs or family dinners without tearing.

The difference is time and toxicity. "Biodegradable" simply means a material will break down eventually—this could take years and often leaves behind toxic microplastics. "Compostable" means the bag will break down completely into nutrient-rich soil within a specific timeframe (usually 90 days), leaving zero toxic residue. For your kitchen, always choose certified FOGO Bin Liners over generic biodegradable options.

Made from plant-based, GMO-free materials and certified to AS 4736 & 5810, our bags are safe for you and the environment.

Tip: Unlike plastic, these materials break down naturally without leaving microplastics.

Yes. Our bags are Council Approved (Always check your local council guidelines for green bin acceptance.), and certified to Australian Standards AS 4736. Whether you are in Sydney or Melbourne, these are the certified compostable bags required to meet the 2026 FOGO mandates without risk of bin rejection.

Because we’ve engineered them with advanced wet-strength technology to handle up to 10KG of kitchen waste. As the strongest FOGO bags on the Australian market, they are puncture-resistant against sharp bones and shells, ensuring they won't split like flimsy green plastic liners.

Absolutely. Our leak-proof paper bin liners feature a reinforced base that has been tested to hold liquid for over 72 hours without seeping. This eliminates the disgusting "bin juice" and summer smells, making them the ultimate odour-locked solution for your kitchen benchtop.

Yes! The freestanding design of our heavy-duty paper FOGO bags allows them to stand independently on your benchtop. This improves airflow, reduces condensation, and stops the fruit fly problem commonly associated with traditional compostable bin liners.

"Bin juice" is the toxic, foul-smelling leachate created when standard plastic liners trap the natural moisture of your food waste. Because plastic cannot breathe, moisture pools at the bottom and accelerates anaerobic rotting. You can prevent this by switching to Compostar kraft paper bags. Our highly breathable material allows for up to 44% moisture evaporation, drastically reducing excess liquid and keeping your kitchen caddy dry and hygienic.

No. Unlike standard newspaper or cheap takeaway bags, Compostar paper caddy liners are engineered with advanced 70-Hour Wet Strength Technology. This cross-linked cellulose structure ensures that even when the bag is soaked with wet coffee grounds or fruit peels, the heavy-duty, fold-and-seal base remains 100% intact and absolutely leak-proof.

Yes, the vast majority do. Compostar kraft paper caddy liners are strictly AS 4736 (Commercial) Certified Compostable, which is the exact standard required by most green wheelie bin FOGO programmes across NSW, VIC, and SA. While our bags are engineered to leave zero microplastics behind and strictly avoid unregulated plastics, FOGO rules can occasionally vary by municipality. We always recommend doing a quick check of your specific local council's website to confirm their exact guidelines.

Our subscription is the most cost-effective FOGO solution, delivering a 90-day supply of certified eco bin bags for just $49.90. This bundle includes our best-selling paper bags and small bin liner rolls, costing you approximately 55 cents a day to keep your kitchen clean and plastic-free.

Yes! While we offer Free Shipping on orders over $99 for one-time purchases, all Compostar Subscriptions come with FREE tracked shipping Australia-wide. It's the most convenient way to ensure you never run out of FOGO-compliant bags.

Yes! Our paper liners are manufactured to meet the strict AS4736 Australian commercial composting standards. Most councils across Adelaide and South Australia (such as Adelaide City, Burnside, and Marion) accept certified compostable paper in their FOGO bins.

However, since local rules can change, we always recommend verifying with your specific council or checking the Which Bin SA website to ensure your local facility accepts paper liners.

Shop our Small Bin Liners for your local FOGO bin.

Yes! Our 72-hour waterproof liners are designed to be compatible with FOGO (Food Organics and Garden Organics) programs across Sydney and NSW. They meet the AS4736 standard, which is the benchmark for commercial compostability in Australia.

• Pro Tip: Many councils, such as Inner West, Randwick, and Penrith, have active FOGO programs. We recommend checking your local council’s website or the EPA NSW guidelines for the most up-to-date bin-sorting rules in your area.

Shop our Small Bin Liners for your local FOGO bin.

Absolutely! As we are based in Melbourne, we ensure our liners meet the high standards of Victoria’s circular economy goals. Our AS4736-certified paper liners are a robust alternative for FOGO bins used throughout Melbourne and regional Victoria.

• Pro Tip: With Victoria moving towards a standardized 4-bin system, most councils (like Merri-bek, Glen Eira, and Hobsons Bay) are expanding FOGO services. Always confirm with your local council or Sustainability Victoria to see if they prefer paper liners over compostable plastics.