Japan (Iga City Mie Prefecture as primary production centre; ancient clay vessel cooking tradition predating Japanese recorded history)
Donabe (土鍋, 'clay pot') is a Japanese ceramic cooking vessel used for preparing hot pots (nabemono), rice, and braised dishes — one of the most beloved and culturally significant pieces of Japanese kitchen equipment. Unlike metal pots, donabe heats slowly and unevenly at first but retains heat extraordinarily well, distributing it gently and evenly throughout the cooking time. This thermal mass property makes donabe ideal for long, slow cooking and for keeping food hot at the table during shared hot pot meals. Japanese donabe range from simple mass-produced items to prized artisanal pieces from Iga (三重県伊賀市) — the primary donabe production centre — where the local clay contains high concentrations of mineral materials that produce exceptional heat resistance and thermal properties. Iga donabe is considered the gold standard: the clay is excavated from ancient lake-bed deposits, air-dried, kiln-fired at high temperature, and produces pots with a characteristic rough, unglazed exterior and a traditional patina that deepens with each use. The ritual of nabemono cooking at the table in a donabe — heating over a portable gas burner, sharing from the common pot, the gradual reduction of broth — is an essential element of Japanese winter communal eating. Donabe should never be placed on direct high heat from cold; they must be pre-heated gradually.
The donabe itself adds no flavour but the gentle, even heat it provides produces results impossible in metal — particularly for nabemono broth concentration and rice cooking where even heat distribution is critical
{"Thermal mass: heats slowly but retains heat; continues cooking after heat is removed","Even heat distribution: the ceramic walls distribute heat gently, avoiding hot spots","Never heat from cold rapidly: the temperature differential causes cracking; gradual heating is essential","Iga-yaki premium: Iga city clay has exceptional heat resistance from ancient lake sediment mineral content","Table cooking function: the donabe is the communal eating vessel for nabemono hot pot"}
{"New donabe conditioning: boil rice congee (okayu) in the new pot first — the starch seals microscopic pores","After washing, dry the donabe completely before storage — moisture trapped inside can crack the clay during the next heating","Iga donabe develops a beautiful patina over years of use that improves heat distribution","For nabemono: arrange ingredients by cooking time — longest-cooking items at the bottom and centre of the pot"}
{"Placing cold donabe on high heat immediately — thermal shock cracks the clay; always start low","Filling completely with liquid — leave 2–3cm headspace for bubbling; too full causes overflow","Using on glass-top induction ranges without an adapter — donabe is not induction compatible without a suitable plate","Washing immediately after use while hot — thermal shock applies to cold water contact as well; cool before washing"}
Tsuji Shizuo, Japanese Cooking: A Simple Art