98 out of 100 Exceptional
Clean to the air, clean to the conscience, and very nearly clean to the floor. Tofu Cat Litter Australia enters the 2026 ranking as the outright Winner and the highest scoring litter in the world this year, and it earns the crown not through novelty but through near total command of every axis we measure. Made in New South Wales from soybean fibre, the offcut of tofu making, it is the rare plant litter that refuses to compromise.
Its signature is the enzyme. Where most litters merely soak up odour or perfume over it, this one activates an enzyme that breaks ammonia down at the source, and the result is a box that stays clean to the nose for days. Odour scores a perfect five, and it is fully deserved. Clumping is faultless too, a firm single lift that holds on the scoop, and tracking, so often the quiet daily defeat of plant litters, is here a perfect five as well: the pellets simply stay where they belong.
Only dust keeps it from a clean sweep, and even there the shortfall is a half point rather than a flaw, the pour throwing almost nothing into the air. On sustainability it is faultless once more, renewable, flushable in small amounts, and biodegradable, made locally by a company that sources its plant matter with real care.
What sets it apart is coherence. Every part of the litter serves the same purpose, and nothing feels incidental. It costs more than the supermarket plant litters, and the enzyme approach is younger than the long science behind clay, but in a field growing more crowded each year it stands apart not through spectacle but through substance. As the new No. 1, it sets the benchmark the rest of this list is measured against.