From our colony to your sofa
Litter Types Compared
Clumping to plant litters, the kitten rule, and changing peacefully.
Last reviewed
Clumping to plant litters, the kitten rule, and changing peacefully.
Last reviewed
The litter aisle has more choices than the cat has opinions, but the differences genuinely matter, to kittens especially. Here is the plain guide to what fills the tray, and how to change it without drama.
The shelf decodes simply: clumping clay makes tight scoopable balls and dominates for convenience; silica crystals absorb heroically and rustle strangely underfoot; wood pellets smell of sawmill honesty and collapse to sawdust; paper is soft, dust free and kind to healing paws, which is why vets send surgery patients home on it.
There is no universal winner, only fits: convenience households lean clumping, dust sensitive lungs lean paper or low dust formulations, and ecological priorities lean wood and paper. The cat’s vote, cast by paw, outranks the marketing.
Every litter trades somewhere on two axes: dust, which matters medically for asthmatic cats and sneezy humans and is worth paying to reduce, and tracking, the glitter of the litter world, managed rather than eliminated by a decent mat at the tray exit and a tray with higher walls for the enthusiastic diggers.
Pour low and slow to keep dust down, fill to the depth your digger actually uses, and site trays off carpet where sweeping is a swipe. The nuisances never reach zero; they reach ignorable, which is the realistic target.
Paws are conservative voters, and litter loyalty is real: an abrupt substrate swap is a classic cause of protest puddles. Change by blending, a quarter new stirred through for several days, then half, then most, watching tray attendance as the ballot count throughout.
If attendance falls, retreat a stage and slow down, and keep one tray on the old material during any experiment in a multi tray home so there is always a trusted polling station. The cat that never noticed the changeover is the changeover done right.
Whatever the household’s adult preference, very young kittens start on non clumping litter for one blunt reason: kittens investigate the world by mouth, and swallowed clumping litter can swell where swallowing took it. Pellet and paper types forgive the taste test.
Our kittens leave here established on their litter, and the wise move is to keep that arrangement through settling in, switching to your long term choice gradually once the newcomer is bigger, confident and past the everything is food phase. The tray is the last place to spring surprises on a small newcomer.
Fragranced litters are marketed at humans and endured by cats: a nose many times more sensitive than ours meets lavender or citrus at point blank range every visit, and some cats quietly conclude the tray is hostile territory. Mystery avoidance cases trace back to perfume more often than owners suspect.
The working rule is unscented litter and odour control done properly instead: clumps lifted daily, full changes on schedule, and a washed tray. A clean unscented tray smells of nothing much, which is exactly what the user ordered.
Cats dig before and after, and the substrate depth decides whether that ritual satisfies: around five to seven centimetres suits most, enough to excavate and bury without hitting plastic, not so deep that footing feels unstable. Too shallow is the commoner error, usually an economy that costs more in mess.
Watch the user for the verdict: vigorous comfortable digging and a properly buried result mean the depth is right; perching on the tray edge, scratching the walls or floor instead of the litter, or unburied deposits are the tray asking for adjustment.
Every litter type writes its own disposal story: clay is heavy in the bin, wood and paper compact lighter, plant based clumping types vary, and whatever the bag suggests, flushing is a bad idea for drains and for the wider environment. Bag, seal and bin remains the boring universal answer.
The fine print worth reading covers pregnant household members, who should hand tray duty to someone else or glove up scrupulously for the reasons our toxoplasmosis guide explains, and storage, dry and sealed, because litter that absorbs damp in a shed has spent its usefulness before the tray.
Litter choice is a negotiation between feline preference and human logistics: most cats vote for soft, sand like, unscented clumping litter, while humans weigh dust, tracking, weight and disposal. Change brands over a fortnight by blending, never overnight, and let the tray’s user cast the deciding vote, because a litter the cat dislikes becomes a toileting problem with bedding.
Our kittens are raised on a soft clumping litter once old enough, having started on kitten safe non clumping, and each kitten’s pack notes cover exactly what they are used to so home matches nursery from day one.
No: the caution belongs to young kittens who eat what they dig in. Adults treat litter as plumbing, not menu, and clumping types are the household standard for good reason.
Some households love the odour control and light weight; some cats dislike the texture underfoot. It is a legitimate option to trial properly, blended in gradually, with the cat’s verdict final.
Clumping litter with daily scooping typically wants a full change and tray wash every couple of weeks; non clumping types much more often. Your nose and the user’s enthusiasm are honest gauges.
Heavier pellets and larger granules travel least; fine light litters travel furthest, riding fur and paws. A high sided tray and a mat outside the exit catch most of what any litter launches.
You can, and blending is exactly how changeovers should run, but permanent mixes can clump unevenly. If a blend works for your tray and your cat, there is no rule against keeping it.
They treat the symptom of a tray that wants more scooping, and scented versions risk the perfume problem. Fix frequency first; a well kept unscented tray rarely needs additives.
Clumping clay forms scoopable balls around liquid, which makes daily cleaning satisfyingly precise and the tray economical to run. Non clumping absorbs throughout and gets changed more fully, more often. The kitten rule decides for young households: very young kittens taste test the world, and swallowed clumping litter can swell where it should not, so kittens start on non clumping, which is exactly why ours are raised on it and why it fills the kitten packs. Adults can use either.
Silica crystals absorb impressively and control odour well, though some cats dislike the feel underfoot. Wood pellet, paper and other plant litters are lighter, kinder to the planet and gentle on paws, trading a little on odour control and tracking. Whatever the material, the two rules that outrank all of them: skip heavy perfumes, which cats find far louder than we do, and let texture be the cat’s vote, since soft, sand like litters win most feline elections.
Cats vote with their bladders, so change gradually: a quarter new litter mixed into the old, increasing over a week or two, retreating a step if the tray gets snubbed. Never change litter, tray and location in the same week, and during any household upheaval, change nothing at all. The full tray happiness rules live in our litter training guide.
Our trays run on a non clumping antibacterial litter that handles a fifteen cat household without perfume warfare, the same bags we sell for collection on the Cat Shop page, and kittens go home knowing exactly that litter underfoot. Continuity is the whole trick: a kitten who recognises the tray filling settles the tray question on day one.
For toileting setups and substrate advice, International Cat Care and the PDSA both publish helpful comparisons.