Kamado-san Donabe
The plastic-free escape hatch - a stovetop Iga-clay rice pot with a double clay lid, no electronics, no coating, no plastic anywhere.
Plastic-free verdict: Plastic-free
A traditional Japanese donabe: a fired Iga-clay pot with an inner and outer clay lid, cooked on a gas stovetop. There is no electric unit, no nonstick coating, no silicone, and no plastic - rice and steam only ever touch fired clay. The zero-compromise answer for anyone who will trade the convenience of an electric cooker for genuine plastic-free rice.
Verification: Manufacturer confirmed · reviewed 2026-07-05
What it's made of
| Part | Material | Food contact |
|---|---|---|
| pot body fired Iga clay (earthenware), naturally heat-resistant | Ceramic / Stoneware / Porcelain | Yes |
| inner lid clay inner lid; traps and radiates heat | Ceramic / Stoneware / Porcelain | Yes |
| outer lid clay outer lid; steam vents through offset holes | Ceramic / Stoneware / Porcelain | Yes |
A stovetop clay rice cooker from Nagatani-en in Iga, Japan, made from naturally heat-resistant clay rich in fossilized microorganisms that fire to a porous, "breathing" body. You soak the rice, seat the inner and outer clay lids, cook on a gas burner ~10-15 minutes until steam vents, then rest 20 minutes off heat. The double lid builds enough pressure for notably good rice without any electronics or coatings. Being unglazed-porous clay, it must be seasoned and fully dried between uses, and it should not be thermally shocked (no empty preheating, no cold water on a hot pot). The trade-off for perfect plastic-free purity is that it is manual and fragile.
Pros
- Completely plastic-, silicone-, and coating-free - only fired clay
- No electronics to fail; extremely long-lived if not dropped
- Double clay lid produces excellent, slightly pressurized rice
- Doubles as a serving vessel with good heat retention
Cons
- Stovetop only (gas) and fully manual - no keep-warm, no timer
- Porous clay is fragile and prone to thermal-shock cracking
- Requires seasoning and careful drying to avoid mold
- Hand-wash only; more care than any electric cooker
Categories: Rice Cookers
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://toirokitchen.com/products/kamado-san Iga-clay donabe with inner and outer clay lids; stovetop; no plastic/coating components
- review https://thejapanesefoodlab.com/kamado-san/ independent review describing the double clay lid construction and cooking method
- manufacturer https://janmstore.com/products/iga-yaki-donabe-clay-rice-cooker retailer listing confirming clay construction (bowl, inner lid, outer lid) and no plastic parts