Choosing a Gaiwan: Capacity, Clay, Glass, and Porcelain

A gaiwan is a lidded bowl for brewing tea by short, repeated infusion. Its simplicity is the point: nothing between the leaf and the water, and complete control over when the infusion stops.

Capacity is the first decision

Smaller than you would expect is usually right. A 100-150ml gaiwan suits one or two drinkers and is the most common size for good reason: it delivers a full infusion into small cups without leaving tea sitting and over-steeping in the vessel.

Larger gaiwans of 200ml and up are harder to handle when full, because the whole rim gets hot and the pour becomes heavy. If you are buying your first, err smaller.

Material changes what you taste

The porosity point is worth taking seriously. Unglazed clay genuinely absorbs aromatic compounds and gradually conditions toward whatever you brew in it. That is why clay vessels are traditionally dedicated to a single category. Brewing jasmine green and then aged pu-erh in the same unglazed pot muddies both.

For a first gaiwan, porcelain is the honest recommendation. It tells you what the tea tastes like rather than what the vessel has learned.

Handling without burning yourself

The technique is real and worth learning. Fill to just below the rim rather than to it, so the lid seats without tea touching the top edge. Hold the rim between thumb and middle finger with the index finger on the lid knob, and tilt so the lid becomes the strainer. Pour decisively; hesitation is what burns fingers.

A flared, everted rim stays noticeably cooler than a straight one. If you have small hands or are nervous about heat, prioritise rim shape over everything else.

Why use one at all

Because it stops the infusion completely. Anything with an integrated basket keeps some leaf in contact with residual liquid; a gaiwan empties fully, so infusion five tastes like infusion five rather than like a continuation of four. For teas that evolve across many steeps, that separation is the entire experience.