Chinese lidded mug

A tall mug with a fitted lid and often a removable inner basket, used for grandpa-style drinking at a desk. The lid does two things worth naming: it holds heat during a long slow drink, and tilted slightly it holds the leaf back while you sip, which is why the basket is optional.

Brewing vesselNon-porousBeginner蓋杯

Identity

Category
Brewing vessel
Native name
蓋杯
Romanised
gai bei, gaibei
Also called
lidded tea mug, office tea mug, covered mug
Material
Porcelain, glass or double-walled steel
Typical capacity
250–500 ml
Skill level
Beginner

Porosity

Not porous. It contributes nothing of its own to the liquor, so it can be moved between teas freely and washed with detergent without consequence.

Where it comes from

Chinese, and the ordinary everyday vessel in offices, on trains and at desks across much of China. It is not a simplified gaiwan and is not part of gongfu practice.

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

A mug and a saucer laid on top. The lid is worth having and nothing else here is; the inner basket, if narrow, is the part most likely to make the tea worse.

This one is not marked essential. The tea can be made without it.

Brewing methods it is used for

  • Grandpa styleLeaf loose in a tall glass or flask, topped up with hot water through the day and drunk around the leaf. It is how an enormous proportion of tea is actually consumed in China, and it needs no equipment whatsoever.
  • Mug infuser brewingLoose leaf in a basket inside a mug — the most common way loose tea is actually made, and the method most often responsible for people concluding that loose leaf is not worth the trouble.

Tea types it suits

Care and maintenance

Nothing unusual. If the lid has a steam hole, keep it clear — a blocked hole makes the lid rattle and spit.

Other brewing vessels

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.

How TeaHQ handles sources

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.

Written comparisons

Where TeaHQ has set this piece of teaware against something it is routinely confused with, and argued the differences out in full.

  • Chinese lidded mug vs gaiwanThe same idea at two scales — a lidded vessel where the lid holds the leaf back — used for two brewing philosophies that are almost opposites. Buying one intending the other is a common first-purchase mistake.