{"product_id":"copper-red-glazed-studio-mug-oxblood-drip-glaze-crackle-interior","title":"Copper-Red Glazed Studio Mug — Oxblood Drip Glaze, Crackle Interior","description":"\u003cp\u003e\u003cspan\u003eA small, hand-thrown mug with a rounded, ear-shaped handle, dipped in a rich copper-red (oxblood\/\u003c\/span\u003e\u003cspan\u003esang de boeuf\u003c\/span\u003e\u003cspan\u003e-style) glaze. The reduction-fired copper glaze breaks and mottles across the body — deep maroon pooling near the base, thinning to lighter rose tones and small pitted specks near the rim — a classic effect of copper-red glazes reacting under variable kiln atmosphere. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe interior and rim are left in a contrasting pale, crackled glaze, creating a striking two-tone effect between exterior and interior. The unglazed footring exposes a warm orange-buff stoneware body, with a carved seal mark visible in the centre, indicating a specific kiln or maker.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCopper red glaze is called \u003c\/span\u003e\u003cspan\u003eshinsha (辰砂)\u003c\/span\u003e\u003cspan\u003e in Japanese ceramics (also seen as \u003c\/span\u003e\u003cspan\u003ekōyū\/紅釉\u003c\/span\u003e\u003cspan\u003e or, for Chinese-origin ware, \u003c\/span\u003e\u003cspan\u003erōkōyū\/郎紅釉\u003c\/span\u003e\u003cspan\u003e). It's a notoriously difficult glaze to fire correctly — the copper oxide is highly sensitive to kiln atmosphere, so achieving an even, vivid red without going brown, grey, or blotchy has historically been considered a mark of skill. This technical difficulty is part of why it carries prestige in Japanese ceramics circles, especially in Kyoto-yaki, Kutani, and studio-potter work.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDetails:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eForm: Small rounded mug with loop handle\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eGlaze: Copper-red (oxblood) reduction glaze on exterior, contrasting pale crackle glaze on interior\/rim\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eSurface: Mottled, pitted copper-red tones from reduction firing; visible glaze pooling at base\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eBase: Unglazed footring, orange-buff clay body, carved seal mark\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eCondition: Small black speck\/inclusion visible on body — check in hand; crackle glaze is characteristic, not damage; inspect handle join for hairline stress cracks\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eCapacity: approx. 120ml\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-tab-span\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eDimensions: (L) 7.7cm x (H) 6.3cm\u003c\/span\u003e\u003c\/p\u003e","brand":"Tsuchi Ceramic","offers":[{"title":"Default Title","offer_id":58896372040064,"sku":null,"price":20.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1014\/6037\/7984\/files\/E155A2B8-647F-4BF0-B542-7945CF659FBB.jpg?v=1788897359","url":"https:\/\/tsuchi-ceramic.com\/products\/copper-red-glazed-studio-mug-oxblood-drip-glaze-crackle-interior","provider":"Tsuchi Ceramic","version":"1.0","type":"link"}