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.

AS5810 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 AS5810 is a decorative building materialfor drywall.

Compostar, born from the Guarden belief in "Waste Done Right", continues our commitment to protecting local endangered wildlife and restoring ecological balance.
At Compostar, we believe that every sustainable choice you make at home creates a ripple effect that reaches deep into the wild.
Our compostable bags are designed to disappear harmlessly, leaving no trace of plastic that invades natural habitats.
By choosing Compostar, you're not just disposing of waste—you're actively restoring the environments that native wildlife like koalas and platypus rely on.
Together, we’re turning polluted spaces back into pristine homes.
That’s ecology in action. That’s Compostar.

5% of retail sales is allocated to fund our own animal protection and conservation initiatives, including endangered species rescue and wildlife preservation programs.

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.