Tofu Cat Litter in Singapore: An Honest Buyer's Guide (2026)

Written by the Kopipets team · Singapore · Last updated July 2026
We sell tofu cat litter. We've tried to write this guide so it's still useful if you buy someone else's.

Short answer: Tofu cat litter is the best default choice for most Singapore cat owners living in HDB flats or condos. It clumps well, is light enough to carry home on the MRT, and is made from food-industry plant waste rather than strip-mined clay; our own tofu litter measures 0.66% powder content and 0.36% pulverisation rate, which is first grade and premium respectively under T/CIQA 11-2020. Its weak points are cost per month and a tendency to soften in Singapore's humidity if you store it badly. Bentonite still beats it on raw clumping strength and price; crystal litter beats it on odour control but not on cat acceptance.

One thing this guide does that most don't: it shows you how to compare prices per kilogram rather than per pack. Pack sizes in Singapore vary from 1.8kg to 2.5kg, so the cheapest-looking bag is frequently not the cheapest litter. It also explains why pellet size — 1.5mm versus the more common 2mm — changes your monthly bill more than the sticker price does.

What tofu cat litter actually is

Despite the name, there is no tofu in it. "Tofu litter" is made from the leftovers of soy or pea processing — the fibrous pulp (okara, or pea dregs) that remains after the milk or protein is extracted. That pulp is dried, mixed with a starch binder, and extruded into pellets. Pellet diameter is the main thing that separates one tofu litter from another: older products are 2mm to 2.5mm, the current generation is 1.5mm. That difference matters more than the marketing on the front of the bag, and we come back to it below.

Because the raw material is a food by-product, the litter is biodegradable, and a swallowed pellet passes through rather than swelling the way clay does. That is the single biggest reason Singapore vets and shelter volunteers tend to recommend it for kittens over clay. It does not make litter food, and a cat that is eating it rather than using it needs a vet rather than a different brand.

A typical formula looks like this — these are the actual proportions in the litter we sell:

Notice what is not in the list: no formaldehyde, no industrial adhesive, no synthetic clumping agent. That matters, and we'll come back to why in the section on how to read a test report.

Tofu vs bentonite vs crystal vs paper — for Singapore specifically

Most comparison articles are written for American houses with basements and cars. Singapore is different: small flats, no car for most people, 80%+ humidity year-round, and rubbish chutes rather than kerbside bins. Here is how the four common litter types actually behave here.

This table used to carry a row grading each litter category's dust with adjectives. We have taken it out. We hold laboratory dust figures for exactly one product in this category — our own — so anything we printed for the others was an adjective with nothing behind it, which is the practice we criticise elsewhere on this site. Our own measured figures are on the test report page.

A note on the "If swallowed" row: no litter is food, and none of these is safe to eat. What the row compares is what happens to a pellet that is swallowed anyway — clay swells as it absorbs water, plant fibre and paper do not. A cat that is eating litter rather than using it should see a vet; that is a sign of pica or a dietary gap, and no change of litter fixes it.

How to compare tofu litter prices properly

This is the section we'd want a friend to read before buying anything.

Tofu litter in Singapore is sold in packs of 1.8kg, 2.0kg, 2.1kg and 2.5kg, and the pack weight is usually printed small while the price is printed large. Two bags on the same shelf can differ by 40% in contents and 10% in price, and almost nobody checks.

So do this instead of comparing sticker prices:

The S$3.93 bag looks more expensive than the S$3.50 bag on the shelf. Per kilogram it isn't. The S$3.00 bag genuinely is cheaper per kilogram — we'd rather tell you that than pretend otherwise, and if price per kilogram is your only criterion, buy it.

Two cautions when you run this sum. Some brands print volume (6L, 7L) instead of weight; you can compare litre-to-litre, but you cannot compare a litre figure against a kilogram figure, because tofu pellet density varies between brands. And a few listings quote the weight of a multi-pack in the title while showing a single-pack price — check what quantity the price actually buys before you divide.

Price per kilogram is only half the equation

The other half is how many kilograms you actually get through in a month, and that is decided mostly by pellet size.

Tofu litter has gone through roughly three generations. The early pellets were about 2.5mm across, the common ones today are around 2mm, and the current generation is 1.5mm. Finer pellets pack more tightly, so urine is captured in a smaller, denser ball instead of spreading sideways through a loose bed. You scoop out a tighter clump, which means you remove less clean litter along with the waste, which means you top up less often. Fine pellets also crumble less when a cat digs, so less of the bed turns to unusable powder over the month.

What that looks like in practice, measured on our own cats with our 1.5mm litter: a fresh box takes 3 packs to fill properly, and after that 2 packs a month is enough to keep it topped up. Coarser litter, in our experience, runs closer to 3 packs a month on an ongoing basis because more clean material leaves the box with each scoop.

So the number to compare is not price per kilogram — it's cost per month:

We'd rather you didn't take our word for the consumption figure. Count your own packs for two months before and after switching — that's the only version of this number that's actually yours. Consumption also varies with box type, how many cats share it, and how diligently you scoop.

How to judge tofu litter quality — the five numbers that matter

Almost every tofu litter in Singapore is marketed with the same four words: natural, low-dust, clumping, flushable. Those words are free. Numbers are not. There is an industry specification for tofu cat litter, T/CIQA 11-2020, and any serious manufacturer will have had their product tested against it. If you ask a seller for their test report and they can't produce one, that tells you something.

These are the five figures worth asking about, with what the specification requires:

What our own litter tested at

For transparency, here are the results from a 17-item laboratory test on the tofu litter we sell, carried out in April–May 2025 by an independent third-party testing laboratory accredited to ISO/IEC 17025 and operating under the ILAC Mutual Recognition Arrangement. The product was tested against T/CIQA 11-2020.

Read against those bands, our 0.66% powder content is first grade rather than premium, and our 0.36% pulverisation rate is premium. Pulverisation rate reflects the formulation and the hardness of the pellet; powder content reflects how well the factory screens and finishes the product before it goes into the bag. Our formulation sits in the top band and our finishing sits one band below it. We quoted both figures against the loosest of the three bands for months before setting it out properly.

These are 13 of the 17 items. The full report is published here — all 17 items, including the ones that are merely good, with the laboratory's name, the report number and the verification code so you can check it against the lab's own database instead of taking a PDF from us.

The number we'd point at is the first one. "No formaldehyde" is a claim every tofu litter brand makes; "not detected below 0.1 mg/kg by an accredited third-party lab" is a measurement. The difference is the whole point of this section — and you should hold any brand, including ours, to the second standard rather than the first.

These figures describe the batch that was submitted for testing. Ask any brand, including us, when their most recent test was done and whether the formula has changed since.

The real question: cost per month

Here is the number most product pages are quietly optimistic about.

There are two numbers here, not one, and product pages tend to blur them. Filling a box from empty costs more than keeping it topped up.

For one adult cat with a standard box, daily scooping and a full change every two to four weeks: the first fill takes about three 7L packs, and from then on roughly two packs a month with our 1.5mm litter. With coarser 2mm+ pellets, expect the ongoing figure to be closer to three packs, for the reasons in the pellet-size section above. Multi-cat households do not scale linearly either: two cats sharing two boxes typically use around 2.5 times a single cat's volume, not double.

Three adjustments worth making to that estimate. Tofu litter needs a deeper bed than clay — at least 5cm, because a plant binder relies on depth to form a clump that holds together; skimping on depth is the most common reason people conclude tofu litter "doesn't clump properly". A fully enclosed or top-entry box will cut consumption noticeably, because far less litter gets kicked onto the floor. And buying in multi-packs rather than singles is where most of the saving is in this category, since a large part of what you pay for a single bag is the cost of getting one small parcel to your door.

Can you actually flush it in Singapore?

Most tofu litter is sold as flushable, and technically it is — the pellets disintegrate in water in under a minute. We'd still tell you to be careful, for three reasons that are specific to living here.

First, plumbing. Older HDB stacks and any bathroom with a slow-draining toilet do not react well to repeated clumps of anything fibrous. Flushing one clump at a time with a full flush is fine; emptying a whole scoop is how people end up calling a plumber.

Second, cat faeces can carry Toxoplasma gondii, and wastewater treatment does not reliably destroy the oocysts. Public health guidance in most countries advises against flushing cat faeces for this reason, and it's a good reason regardless of what the litter is made of.

Third, if anyone in the household is pregnant or immunocompromised, don't handle waste disposal at all if you can avoid it — that's standard advice from every obstetrician, not a marketing line.

Our actual recommendation: flush urine clumps if your plumbing is healthy and you do it one at a time. Bag the faeces and put it down the chute. Treating "flushable" as a convenience feature for the wet clumps, rather than a whole-box disposal method, is the sane middle ground.

Where to buy tofu cat litter in Singapore

You have more options than you might think, and we're not going to pretend we're the only one. Tofu litter is stocked by the major local chains including Pet Lovers Centre, CatSmart and Polypet, by online specialists such as Petico and SG Petshop, and on Amazon.sg, Shopee and Lazada. Brands you'll come across locally include Cature, C For Cat and TriadCats, alongside a long tail of house brands.

What to weigh up when choosing between them:

• Ask for the test report. Formaldehyde and heavy metals, tested by an accredited lab. Any brand can email you a PDF, and how they respond to the question tells you almost as much as the report does.
• Divide by the pack weight. Price per kilogram, not price per bag. See the section above.
• Check the pellet size. 1.5mm pellets clump tighter, so you scoop out less clean litter and top up less often; they're also gentler on paws and track less than the chunkier 2mm+ versions, which matters for declawed, senior or long-haired cats. If a listing doesn't state the pellet size, assume it's 2mm or larger.
• Buy a small quantity first. Cats are opinionated about litter texture, and a cat that rejects a litter will find somewhere else to go. Never switch a whole box at once — mix the new litter in over a week.
• Then buy in bulk. Once a cat has accepted a litter, single-pack buying is the expensive way to do it. Three months' supply in one delivery is the sweet spot for one cat.
• Check where it ships from. Stock held locally arrives in days; stock shipped in on order can take a fortnight, which is a problem when you're down to your last pack.

Who should not buy tofu litter

Being straight about this is more useful than pretending it suits everyone.

• Households with four or more cats on a tight budget. The maths stops working. Bentonite is meaningfully cheaper at volume.
• Enthusiastic diggers. Some cats excavate. Soft tofu pellets break down faster under that treatment than clay does.
• Anyone who can't store it sealed. If your only storage is an open service yard, humidity will degrade an opened bag before you finish it.
• Cats recovering from surgery. Vets usually specify recycled paper litter for a few weeks — follow that, not us.

Frequently asked questions

How much tofu cat litter does one cat use per month in Singapore?

Filling a box from empty takes about three 7L packs. After that, topping up costs about two packs a month with 1.5mm fine-pellet litter, or closer to three packs a month with coarser 2mm pellets, because coarse litter loses more clean material with every scoop. At S$3.93 per pack that is S$11.79 to start and about S$7.86 a month ongoing. Enclosed or top-entry litter boxes reduce this further, because less litter is kicked out.

Is tofu cat litter safe for kittens?

It is generally the recommended choice for kittens, but for a specific reason rather than a general one. Kittens explore by mouth, and clay litter swells if swallowed. Tofu litter is made from food-industry plant material and contains no clay that would swell in the gut, which is why vets tend to prefer it to bentonite for kittens. It is still not food. A kitten that is eating litter rather than using it should see a vet — that is a sign of pica or a dietary gap, not something a litter choice fixes. Check that the specific product has a formaldehyde test result, since the binder is where the safety risk would come from.

How do I compare tofu cat litter prices between brands?

Do it in two steps. First divide the pack price by the pack weight in kilograms — Singapore packs range from 1.8kg to 2.5kg, so the cheapest bag on the shelf is often not the cheapest litter. A 1.8kg pack at S$3.50 costs S$1.94 per kilogram; a 2.1kg pack at S$3.93 costs S$1.87 per kilogram. Then multiply the pack price by how many packs a month you actually use, which depends on pellet size: 1.5mm fine pellets run about two packs a month per cat, coarser 2mm pellets about three. A litter that is cheaper per kilogram can still cost more per month.

Is 1.5mm tofu cat litter better than 2mm?

For most households, yes. Finer 1.5mm pellets pack more tightly, so urine forms a smaller, denser clump instead of spreading through a loose bed. You scoop out less clean litter with each clump, so a box lasts longer between top-ups — roughly two packs a month instead of three, in our own use. Fine pellets also track less and are gentler on paws. The trade-off is that very fine litter can slip through the widest-slotted scoops, so use a fine-mesh one.

How often should I fully change tofu cat litter?

Scoop clumps daily and top up as needed; do a full change every two to four weeks for one cat, more often in a multi-cat box. If you can smell ammonia after scooping, the bed is saturated and it's time for a full change regardless of the calendar.

Why isn't my tofu litter clumping properly?

Almost always one of three things: the bed is too shallow (needs 5cm or more), the bag has absorbed humidity from being left open, or you're scooping too soon — a plant-binder clump needs 10 to 20 seconds to set, unlike clay which grabs on contact.

Does tofu litter smell?

Unscented tofu litter has a faint cereal or grain smell when fresh, which most people stop noticing within a day. It controls ammonia well when scooped daily. If you want stronger odour control, a charcoal version or a baking-soda deodoriser mixed into the bed works better than switching to a heavily perfumed litter, which many cats dislike.

Is tofu litter compatible with automatic litter boxes?

Generally yes — most self-cleaning boxes list tofu litter as compatible, and its light weight is an advantage for the sensor mechanisms. Check your specific model's manual, and use a deeper bed than the minimum it recommends.

Is tofu cat litter better than bentonite?

Lighter, biodegradable, and without the risk that clay swells if swallowed. On dust we have no side-by-side measurement between categories, so we do not claim a winner there. Worse for raw clumping strength and cost per month. For a single-cat HDB household where nobody wants to lug 10kg of clay home, tofu wins on balance. For a five-cat home on a budget, it doesn't.

About Kopipets

Kopipets is a Singapore pet supplies brand for cats and dogs, operated by Surplus Media Pte. Ltd. (UEN 202448810R), a Singapore-registered company and the importer of record for the products we sell. We hold our own stock in a local warehouse, inspect it on arrival, and deliver islandwide with our own fleet.

We make Kopipets Tofu Cat Litter in 7L / 2.1kg packs, in Original and Charcoal. It's a third-generation 1.5mm fine pellet — the size that clumps tightest and stretches furthest — clumping in roughly 10–20 seconds, with the test results published above.

We sell it in packs of nine at S$3.93 a pack. For one cat that's one box fill plus about three months of topping up, so roughly four months of litter in a single delivery. Per kilogram it's S$1.87, and at two packs a month it's about S$7.86 a month to run — those are the two numbers we'd point at if you're running the comparison in the sections above.

If you want the full laboratory report before you buy, it is published here in full — all 17 items, the laboratory's name, the report number and the verification code, so you can check it against the lab's own database rather than take a PDF from us. We think more brands should be asked for theirs. If you want the reasoning behind our own claims rather than the claims themselves, our piece on how to judge whether a tofu litter is safe sets out the four numbers to ask any seller for.