Walk into any Australian pet store today and the cat litter aisle has never been more crowded — or more confusing. Clay, silica crystals, pine pellets, paper, tofu, corn, cassava… the options are endless. But two types in particular are winning over Australian cat owners in 2025: corn and cassava cat litter. So how do they really stack up against the old-school alternatives? Let's break it down.

What Are the Five Main Types of Cat Litter?

1. Bentonite Clay — The Traditional Standard

Clay litter, particularly sodium bentonite, has dominated the market for decades. It clumps firmly, is widely available, and cats generally accept it readily because the fine texture feels natural underfoot. However, bentonite is a non-renewable mineral extracted through open-cut strip mining — a process that strips entire landscapes bare. It's also heavy, dusty, and completely non-biodegradable, sitting in landfill for hundreds of years. With Australia's 3.9 million cats producing an estimated 400+ million kilograms of litter waste annually, the environmental toll is significant.

2. Silica Crystal Litter

Silica gel beads absorb moisture efficiently and can last several weeks between full changes, making them popular for busy households. They excel at odour control and stay relatively dry on the surface. The downsides? They're not biodegradable, can feel harsh on sensitive paws, and the ongoing cost adds up. Some cats also reject the texture outright.

3. Pine & Paper Litter

Wood pellet and paper-based litters have a loyal following among eco-conscious Australian pet owners. They're renewable, biodegradable, and low-dust. Pine has natural antibacterial properties and a pleasant scent. The trade-off is clumping performance — pine pellets crumble into sawdust rather than forming scoopable clumps, which means a two-layer sifting box is usually required. Paper is gentle and ideal for post-surgery cats, but can struggle with odour control in multi-cat homes.

4. Corn Cat Litter — Natural Clumping Done Right

Corn-based litter is made from whole-kernel corn or corn cob processed into absorbent granules. It clumps firmly, is biodegradable, and uses plant enzymes to neutralise ammonia odour at the source. It's lightweight (great for carrying home), flushable in small quantities, and fully renewable. Australian cat owners who've made the switch frequently note that their cats accepted it easily — the fine texture feels familiar, similar to sand.

The main consideration: like all natural litters, quality matters. Look for litters that have been properly dried and processed to prevent mould growth, especially in humid Australian climates like Queensland and coastal NSW.

5. Cassava Cat Litter — The Newcomer Making Waves

Cassava (tapioca root) litter is one of the fastest-growing categories in Australia's natural pet products market. The starchy root has extraordinary natural clumping ability — it forms tight, scoopable clumps quickly without synthetic binders. It's also remarkably low-dust, making it a standout choice for households with cats or owners prone to respiratory sensitivities.

Cassava is lightweight, soft underfoot, and biodegradable. Many cassava litters — including Sustainably Yours — blend corn and cassava together to combine the clumping strength of both materials while balancing texture, odour control, and absorbency.

How Do All Cat Litter Types Compare?

Sustainably Yours: lightweight, low-dust, and biodegradable

Why Are Australian Cat Owners Switching to Plant-Based Litter?

Australia's cat litter market is shifting. A 2024 survey found that while 32% of Australians still use clay litter, paper (26%) and crystal (21%) litters are close behind — and plant-based options are growing rapidly, driven by apartment living, sustainability awareness, and a growing understanding of respiratory health in cats and humans.

Here's what's driving the switch to corn and cassava specifically:

• Indoor living: With more Australians keeping cats fully indoors, dust-free litter matters more than ever. Inhaling fine clay particles daily isn't good for cats or their owners.
• Smaller spaces: Apartments need lightweight, low-odour litter. Corn and cassava score high on both.
• Sustainability: Australians are increasingly aware that clay litter contributes to strip mining and ends up in landfill permanently. Plant-based litters decompose naturally.
• Cat health: Cats groom their paws after using the litter box. Food-grade corn and cassava ingredients mean accidental ingestion is far less concerning than with clay or silica.

Which Cat Litter Is Best for Multi-Cat Households?

For homes with two or more cats, corn and cassava blends perform exceptionally well. The natural enzyme odour control handles higher usage, and the firm clumps mean each scoop removes waste efficiently without crumbling. The Sustainably Yours range offers a Multi-Cat Formula specifically designed with enhanced absorbency for busy litter boxes — available in both Small Grain (4.5kg) and Large Grain (5.9kg) sizes.

Where Can You Learn More About Cat Litter Types?

We have a dedicated step-by-step guide on how to switch your cat to natural litter without the drama, covering gradual blending, special situations for kittens and senior cats, and what to do if your cat refuses entirely.

For the full environmental picture, read our breakdown of the environmental cost of cat litter in Australia.

How Do You Switch to a New Cat Litter Successfully?

Most cats transition to corn or cassava litter without much fuss, but a gradual approach always helps:

1. Week 1: Mix 25% new litter with 75% current litter
2. Week 2: 50/50 blend
3. Week 3: 75% new, 25% old
4. Week 4: Full switch to new litter

Keep the litter depth at 6–7cm and scoop daily. Most cat owners notice their cats adapt within a week or two.

Which Cat Litter Is Best for Australian Cats?

For Australian cat owners in 2025, corn and cassava litter offers a compelling combination: strong clumping, low dust, natural odour control, and genuine biodegradability — without the strip-mining footprint of clay or the non-degradable waste of silica. It's not just a greener choice; it's a better daily experience for you and your cat.

If you haven't tried it yet, Sustainably Yours Cat Litter is a great place to start — Australian-focused, available in multiple grain sizes and formulas, and designed for real Australian households.