Teapot Materials Compared: Porcelain, Clay, Glass, Cast Iron
The vessel you brew in is not just a container — its material subtly shapes flavor, heat, and ritual. Here is how the main options compare.
Porcelain (瓷)
- Neutral: does not absorb flavor, so one pot suits all teas.
- Great heat retention and easy to clean.
- The classic choice for gaiwans and most everyday pots.
- Best for: everything, especially delicate greens and whites.
Yixing Clay / Zisha (紫砂)
- Porous: gradually absorbs oils and aroma, “seasoning” over time.
- Traditionally dedicated to one tea type.
- Beautiful and collectible, but easy to fake and pricier.
- Best for: oolong, pu-erh, aged teas.
Glass (玻璃)
- Fully neutral and transparent — perfect for watching buds unfurl.
- Poor heat retention, so pre-warm it.
- Best for: green tea, flower teas, cold brew.
Cast Iron (铁壶/铁壶急须)
- Retains heat exceptionally well; often used to boil water (tetsubin) rather than brew.
- Enamel-lined interiors avoid rust.
- Best for: keeping black/pu-erh hot during long sessions.
How to Choose
Start with porcelain for versatility. Add glass for visual teas, clay for a favorite type, and cast iron only if you love long, hot sessions. Material is the quiet partner to leaf quality — get it roughly right and your tea sings.
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