Cat litter is one of the highest-volume pet consumables in the world, and the differences between types are more consequential than most buyers realise until they have shipped the wrong one. This guide compares the main types on the properties that actually affect the importer and the end consumer.
Bentonite
The industry default and by far the largest volume category. Bentonite is a natural clay, mined chiefly in China, and sold as small granules. Its defining property is its swelling behaviour: it expands several times its dry volume when saturated, which is what allows a relatively small quantity to absorb a large volume of liquid.
- Absorbency: excellent, and it clumps tightly, which is what makes waste removal easy.
- Dust: significant. Low-dust grades exist and cost more, and dust is a genuine health complaint driver in some markets.
- Tracking: high. Light granules are carried by paws out of the box, which is a visible negative for owners and generates returns.
- Weight: heavy. One of the densest pet products per unit of volume, which makes freight per unit relatively favourable for the shipped value.
- Import consideration: bentonite is a bulk commodity with low value density, so freight economics dominate and most imports use container loads rather than consolidation.
Crystal / silica gel
Silicate crystals with a porous structure. The mechanism is absorption into the crystal structure rather than swelling, so the litter does not clump into a removable ball but stays as loose crystals that are scooped.
- Absorbency: good, with excellent odour control.
- Dust: very low.
- Tracking: low.
- Appearance: the premium, modern look, which is why it occupies the higher price tier in retail.
- Import consideration: lighter and lower density than bentonite, so freight per unit is worse, and the price premium means quality failures are more expensive.
Tofu litter
Made from soybean pulp, pressed into granules and often deodorised with a fragrance. It is a genuinely different category rather than a bentonite variant, and it sells on different attributes: plant-based, flushable in small quantities, and a lower dust profile.
- Absorbency: good, with fast absorption and reasonable clumping.
- Odour control: depends heavily on the deodorising system and fragrance load. This is the specification that matters most in this category.
- Breaking up: a known weakness of some formulations. Tofu granules can break down in transit, producing dust and fines that affect the appearance and the odour performance of the finished product.
- Supply chain: soybean pulp availability is the constraint, and it is tied to the crop cycle. This produces a distinct annual seasonality in both price and lead time.
- Import consideration: the crop-cycle seasonality means buyers who order once a year carry twelve months of price and quality risk. Splitting the order across two runs reduces both.
Pine and wood pellets
Wood-based, either pelletised pine or ground pine. Wood pellets have grown in popularity in Europe because of the environmental positioning and because some cats prefer the texture.
- Absorbency: moderate, lower than bentonite.
- Clumping: good — pellets clump effectively.
- Tracking: low to moderate, better than bentonite.
- Key issue: wood litter must be dry. It performs poorly in humid conditions and can develop a musty smell, which makes packaging and shipping conditions matter more than for mineral litters.
Paper litter
Made from recycled paper, in pellet or crinkle form. The environmental story is the selling point.
- Absorbency: lower than bentonite, notably weaker with larger volumes.
- Dust: low, though the crinkle format creates paper fragments.
- Key issue: it must be kept dry in transit, and it is more vulnerable to moisture damage during ocean freight in humid conditions or in poorly ventilated containers.
Corn and other plant-based alternatives
Corn-based and similar plant materials. The economics are driven by agricultural commodity prices, and the availability profile is seasonal for the same reason tofu is.
How the choice affects your import
The litter type determines three import variables that importers frequently underweight:
- Freight per unit. Bentonite is dense and freight-efficient. Silica and paper are lighter and worse. The same container holds very different quantities.
- Seasonality. Plant-based litters carry crop-cycle risk; mineral litters carry mining and energy cost risk. Both move, on different schedules.
- Moisture protection. The more absorbent and more plant-based the product, the more the specification needs to address moisture in transit. Hermetic or moisture-barrier packaging, and container ventilation planning, are not optional in these categories.
What importers should specify
- Granule size range, since it affects clumping and tracking.
- Absorbency figure with the test method stated.
- Dust level, particularly if you are targeting the premium tier.
- For scented products, the fragrance load and the deodorising system used, plus the odour-control performance figure.
- For plant-based, the protein content and the source specification.
- For any litter, the packaging format and whether the packaging is moisture-barrier.
Frequently asked questions
Which cat litter type is easiest to import?
Bentonite, on the two grounds that matter most: it is dense, so freight per unit is favourable, and it is not moisture-sensitive in the way plant-based and paper litters are. It is also the best-understood specification in the trade, so quoting is faster and quality disputes are rarer.
Which type has the best margin?
Usually the specialty types — crystal, tofu, wood and paper — because they sell on a differentiated proposition rather than on price. But they carry more sourcing complexity: crop-cycle seasonality for plant-based, moisture risk for paper and wood, and freight disadvantage for the lighter products. Higher retail margin is not the same as better import economics.
Is tofu litter more sustainable?
It is usually presented that way, and the soybean pulp is a co-product of an existing agricultural process, which is a genuine argument. But sustainability claims are regulated in the EU under the Green Claims and Empowering Consumers frameworks, and a claim on packaging needs to be supportable. We would advise on what the substantiation requirement is rather than encouraging the claim.
How much does moisture in transit damage plant-based litter?
It is one of the most significant causes of rejected cat litter shipments. Absorbent plant-based material that gains moisture in a sealed container has reduced absorbency and can develop an unacceptable odour. Hermetic packaging, correct stuffing practice and container ventilation planning all reduce it. It is a specification issue, not a shipping-luck issue.
Should I import one litter type or several?
One type per production belt is the usual structure, because each type has its own production geography and specification vocabulary. Importing several types usually means several factories and a consolidation exercise — which is feasible, and which we handle routinely, but which needs the planning described in our consolidation guide.
How do I test odour control on samples?
Ask the supplier for the deodorising system used and the test method behind the odour-control figure. Where you have a specific formulation concern, test a sample against the same odour standard the factory uses. Scent strength in a warm room differs from a cool one, so note the temperature at which any assessment was made.