Sha diao (clay water kettle)
A thin-walled unglazed clay kettle with a side handle, used over a charcoal stove in Chaozhou gongfu practice. Thinness is the design: a thin clay wall reaches boiling faster than a thick one and cools faster off the heat, which suits a practice where water is boiled repeatedly in small amounts rather than held hot.
Identity
- Category
- Kettle
- Native name
- 砂銚
- Romanised
- sha diao, shadiao, yushu wei
- Also called
- Chaozhou clay kettle, sand-clay kettle, yushu wei
- Material
- Coarse unglazed sandy clay, thin-walled, with a cane or clay side handle
- Typical capacity
- 200–600 ml
- Skill level
- Advanced
Porous — this changes how it is used
Porous. It takes up a trace of every tea brewed in it and gives some of that back to the next, which is why such a vessel is kept for one tea rather than shared across a shelf.
The body is porous and holds only water, so the dedication convention that governs teapots does not apply. It does mean a kettle left standing full will weep slightly and that a damp body cracks when put straight onto a fire.
Where it comes from
Chinese, from the Chaozhou and Shantou area of eastern Guangdong. It is conventionally counted as one of the four items of a Chaozhou gongfu set, alongside the stove, the small pot and the cups — a grouping TeaHQ reports as a convention of the practice rather than as a fixed inventory.
Named here rather than presented as generic equipment. The object belongs to a practice, and TeaHQ describes it from the outside.
If you do not own one
Any kettle. Water boils at the same temperature in all of them, and the claim that clay-boiled water tastes softer than steel-boiled water is repeated constantly and is not something TeaHQ can source.
This one is not marked essential. The tea can be made without it.
Brewing methods it is used for
- Gongfu brewing (Yixing pot) — The same short-steep, high-leaf approach as gaiwan gongfu, carried out in a small unglazed clay pot that seasons over time and is dedicated to one tea.
Tea types it suits
Care and maintenance
Dry it fully between uses and never put a wet or cold body straight onto a fierce heat. These are consumables in practice: thin clay over charcoal cracks eventually, and a cracked one is finished.
Other kettles
Sources
This page is TeaHQ synthesis. No external source stands behind the description, the material or the account of how the object is cared for. Where the record names a tradition, that attribution is TeaHQ’s own reading of common practice rather than a citation.
TeaHQ names no maker, brand or shop and has nothing to sell. Nothing on this page should be read as advice to buy the object — the substitute note above exists because owning it is usually optional.