Bentonite vs Tofu vs Cassava vs Silica: Cat Litter Matrix
Definition. A cat litter material matrix compares the four commercial bases — bentonite, tofu, cassava, silica gel — on the six numbers importers actually buy on: density (g/L), clumping, dust, absorption, container loading and MOQ. Density is the anchor: it decides tonnes per container and therefore freight cost per kg.
Buyers ask "which litter is best" — the honest answer is a matrix, not a winner. Each material wins a different procurement scenario. Below is the comparison our export team uses in quotations, with batch-verified density figures.
The 6-Number Comparison Matrix
| Metric | Bentonite | Tofu | Cassava | Silica Gel |
|---|---|---|---|---|
| Loose density | ~950 g/L | 597 g/L (CTI) | 600–650 g/L | ~800–900 g/L |
| Clumping | ≤3s, hardest clump | ≤5s | ≤4s | No clump (absorbs) |
| Dust | ≤0.1% (ISO 8130) | ≤0.05% | ≤0.1% | Low after sieving |
| MOQ | 26t / 20GP | 18t / SKU | 18t / SKU | 38t / 40HQ |
| Container | ~26t 20GP | ~18t 20GP | ~18t 20GP | ~38t 40HQ |
| Best market fit | Gulf, LATAM, value segments | Korea, EU flushable markets | EU, premium private label | Single-cat households, odor-first buyers |
Bentonite: the value anchor
Cheapest per kg, highest density, hardest clump (≤3s), and ~26t per 20GP — the strongest freight economics. Limits: not flushable, heavier. First container for most importers. Bentonite product page →
Tofu: flushability with density data
597 g/L (our CTI third-party batch report) — the densest plant-based option, clumping ≤5s, dust ≤0.05%. Flushable claims require a dispersion test per target market. The Korean market has been the strongest adopter. Tofu product page →
Cassava: the premium plant-based option
600–650 g/L, clumping ≤4s — cassava positions between tofu and premium plant-based blends, favored by EU private-label brands for its texture. Same 18t/20GP economics as tofu. Cassava product page →
Silica gel: odor absorption without clumping
Absorbs urine into the crystal — ideal for single-cat households and odor-first buyers. Loads by weight: 38t per 40HQ. Color-indicating variants show saturation visually. Silica product page →
A Four-Question Selection Framework
- Price or flushability first? Value → bentonite. Flushable plant-based → tofu or cassava.
- Which automatic box? Check the granule-size spec: clumping litters for most boxes, crystal only for crystal-compatible boxes.
- Single-cat or multi-cat? Silica suits single-cat; multi-cat needs clump life — see our multi-cat OEM guide.
- Freight or MOQ constrained? Mixed containers (bentonite + tofu) test two SKUs with one freight.
Bottom line: there is no "best" material — there is a best material for your price point, market climate and cat-owning pattern. Compare on the six numbers above, request the batch COA for each, and test a mixed container before committing. If you are sizing your first order, message us on WhatsApp for a quote on any combination.