A missing section of a bowl can be replaced with a fragment from another vessel. In yobitsugi (呼び継ぎ), that borrowed piece remains visible: a blue-and-white shard might interrupt a plain rim, or porcelain meet a darker ceramic body. Its curvature and thickness must fit the damaged vessel as well as its appearance.
Image note: The photographic-style repair scenes below are editorial illustrations of hypothetical examples, not photographs of documented repairs, museum objects, workshops, or ZenKiln products. Repair methods and materials vary; captions identify the limits of each image.
The name combines yobu, to call or invite, with tsugi, joining. Contrast between the original vessel and the donor shard is a visible part of the repair. The maker may choose a marked difference in colour or a subtler pairing.
Joining methods and metal finishes
The terms can overlap:
- Kintsugi (金継ぎ) names gold-finished repair and need not be restricted to an object’s original fragments. See Kintsugi: The Japanese Art of Gold-Repaired Pottery.
- Gin-tsugi (銀継ぎ) uses a silver finish. Our gin-tsugi guide explains its appearance and care.
- Other repairs reunite original fragments or fit a visually matched replacement. Ask the repairer how the join is constructed instead of relying on a term alone.
Urushi-based mixtures can bond fragments and fill losses. Mugi urushi combines lacquer with wheat flour; other mixtures serve as fillers. Curing conditions and timing depend on the materials and layers, so there is no universal humidity setting or completion time.
Where the Taste for Visible Repair Came From
Staple repairs offer an earlier way to retain damaged ceramics. Metal staples fitted into holes on either side of a crack held the pieces together, leaving the repair visible.
Tokyo National Museum records the tradition of Bakōhan: the damaged bowl was sent to China in search of a replacement and returned with staples when none could be found. This account does not prove the origin of lacquer-and-gold repair.
A patchwork repair adds the colour and shape of a second vessel. Its appearance can be appreciated without assigning an undocumented origin date or assuming that every repair expresses the same philosophy.
How a Yobitsugi Repair Is Made
Finding the borrowed shard
A repairer selects a donor fragment by curvature, thickness and appearance, then fits it to the loss. This is a craft description, not a home grinding procedure: ceramic edges and dust need appropriate precautions, and raw urushi can cause contact dermatitis.
Building the joint
Edges are cleaned and sometimes primed with raw urushi. Mugi urushi bonds the borrowed shard and any original fragments; excess is trimmed before it sets. Once the structure holds, sabi urushi fills the remaining gaps and steps, applied in thin layers and shaved level between coats.
Curing in the furo
The lacquer layers cure in controlled humid conditions, often in a cabinet called a furo. The process can take weeks or months. Each layer needs the conditions and time appropriate to the materials used.
Finishing the seam
Metal powder is applied while the finishing lacquer is still tacky. A repair may combine different adhesives, fills and finishes, so neither the visible gold nor the word “urushi” reveals the entire construction. Ask for a complete materials record.
Living With a Yobitsugi Piece: Care Rules
Confirm the repaired piece’s intended use and washing method with the repairer. See our urushi care guide for general lacquer care; the repairer’s instructions take priority.
- If washing is approved, use the repairer’s gentle method and avoid prolonged soaking. An undocumented or fragile repair should not be assumed washable.
- Keep metal-finished lacquer repairs out of microwaves and dishwashers. Metal can arc in a microwave; heat, detergent and mechanical action can damage the join.
- Avoid cooking heat and sudden temperature changes. Do not pour boiling liquid into a repaired vessel.
- Display the piece away from prolonged direct sunlight, which can damage lacquer.
- Food contact requires confirmation of all adhesives, fillers, pigments, finishes and the intended temperature and contact conditions. Natural lacquer or pure gold alone does not certify a repair; keep an undocumented piece for display until assessed.
- Support the whole vessel when storing or moving it, and keep pressure off the seam. Our long-term storage guide covers wrapping and boxes.
Ceramic forms and surfaces to compare
These catalogue pieces are examples of different bodies and decorations, not examples of yobitsugi or promises of future repairability.
The Hagi yaki pink coffee pair by Tsubakihidegama, Arita Ko-Imari lidded bowl, Arita faceted bowl and Arita sakura kyusu teapot illustrate different surfaces and forms. Consult each listing for its verified production details, condition and current availability. Browse the Arita & Hasami Ware collection and Arita Ware: The Story of Japan's First Porcelain for further background.
FAQ
Does yobitsugi lower a vessel's value?
A repair changes condition and can add visual or historical interest, but it does not guarantee a higher value. Attribution, documentation, execution and market context all matter.
Sources: the museum record above supports the Bakōhan account; the Kintsugi overview on Wikipedia provides general background. Neither assesses the materials or food suitability of an individual repair.
