World's Best Cat Litter, Multicat

The litter that made corn respectable. World's Best Cat Litter is made from whole kernel corn, and it arrives at No. 40 with seventy two, a renewable American litter with a long and genuine pedigree.

On the performance axes the markings are honest. Clumping scores a solid four, the corn pressing into tight clumps that scoop cleanly, the quality that built the brand. Odour and tracking each come in at three and a half, decent but not commanding: the smell control can tire under a heavy multi cat load, and the light corn pellets travel a little more than a denser grain. Dust is marked at three, low from the bag with a slight rise on the first pour.

On sustainability the litter scores a four. Corn itself is renewable, flushable in small amounts, and biodegradable, the green credential that has long been part of the brand's appeal.

World's Best is a proven, renewable, flushable corn litter with a long track record and broad availability, the litter that taught the American market a plant could clump. It is the choice for the owner who wants a green, flushable box from a familiar name. A benchmark plant litter, and the formula that proved corn could clump.