Japan — clay cooking vessels in use since Yayoi period (300 BCE); modern donabe traditions centred in Iga (Mie Prefecture) where superior clay quality produces professional-grade vessels
The donabe (土鍋, 'earthenware pot') is one of Japan's oldest and most important cooking vessels, valued for its unique thermal properties and the distinctive textures and flavours it imparts to rice, soups, stews, and tabletop cooking. Unlike metal pots that heat and cool rapidly, donabe heats slowly, distributes heat evenly through its porous clay body, and holds heat long after removal from flame — properties that produce exceptional results for rice cooking (producing the prized okoge crust), nabe hotpots, and soup stocks. The porous clay body also absorbs and moderates moisture, contributing to the characteristic soft, fluffy texture of donabe-cooked rice that electric rice cookers cannot fully replicate. Premium donabe are produced primarily in Iga and Banko (Mie Prefecture), where specific clay composition and kiln-firing techniques produce vessels with superior heat tolerance and longevity. New donabe requires seasoning (me-ume): cooking rice starch (or dilute porridge) repeatedly to fill the clay's microscopic pores and prevent cracking. Without proper seasoning, cold liquid entering a hot donabe can cause thermal shock cracking. Donabe should never be placed on heat while empty, never subjected to sudden temperature changes, and should be stored completely dry to prevent mould growth in the pores. The donabe also functions as a beautiful tabletop serving vessel — nabe ryori (hotpot dining) and gohan-nabe (rice in clay pot) are served directly from the vessel at the table.
Indirect flavour contribution: the clay's thermal properties create textures (soft fluffy rice interior, crisp okoge crust) unachievable in metal vessels; mild earthy character in long-simmered preparations from clay minerals
{"Slow, even heat distribution through porous clay produces superior results for rice and stews","Me-ume seasoning (porridge firing) fills clay pores to prevent thermal crack penetration","Never heat empty — absent liquid, clay heats unevenly and may crack","Okoge (rice crust at pot bottom) is a prized result unique to clay pot cooking","Complete drying before storage is essential — residual moisture causes mould in porous clay","Iga and Banko clays differ: Iga for robust use; Banko for refined tabletop presentation"}
{"Me-ume method: fill donabe 80% with water + 10% cold rice; simmer to porridge consistency; cool completely; repeat","Donabe rice: rinse rice, soak 30 min, add precise water, bring to boil with lid on, reduce to low 10 min, rest 10 min off heat","Okoge (crust): after rest period, briefly increase heat 30-60 seconds — listen for crackling sound indicating crust formation","Iga donabe: rougher exterior texture, higher heat resistance — preferred for robust use and outdoor cooking","Seasonal use: store in cool, dry place wrapped in paper (not plastic) — breathable wrapping prevents moisture trapping"}
{"Skipping me-ume seasoning on a new donabe — first use cracking from unsealed pores","Sudden cold-to-hot transitions — thermal shock is the primary cause of donabe cracking","Cooking on too high a flame — clay cannot dissipate heat fast enough; rim and base crack","Storing donabe stacked — chips and cracks on rim; store individually with lid ajar for ventilation","Washing with soap — detergent absorbed into porous clay imparts off-flavours to subsequent cooking"}
Tsuji Culinary Institute — Japanese Kitchen Equipment and Vessel Culture