Curling and down-raising vs flat shaping
The two hand-shaping traditions behind China’s two most famous green teas, and they handle the leaf’s down in opposite ways. Bi Luo Chun’s spirals are produced by palm friction that deliberately lifts the trichomes to the surface; Longjing’s blades are pressed flat against a hot wok, which lays everything down.
processing method
What is being compared
Point by point
| Aspect | Curling and down-raising (cuo tuan xian hao) | Flat shaping |
|---|---|---|
| Action | Warm leaf is rubbed between the palms into loose balls and broken apart repeatedly. | Leaf is pressed flat against the heated side of a wok. |
| What happens to the down | Raised so it stands proud of the surface — the white fuzz is the signature. | Flattened into the blade; a good Longjing looks smooth and slightly glossy. |
| Resulting form | Tight spirals. | Flat pressed blades. |
| Cup appearance | Slightly hazy from suspended down, which is normal rather than a fault. | Clear. |
| Effect on extraction | Fast; a spiral is largely surface. | Moderate, and even, because the blades are uniform. |
| Where the skill lies | In friction and timing while the leaf is still warm and damp. | In pressure and heat management during fixation. |
The short answer
The two shapes encode two different ideas of what a green tea should look like in the glass, and both are functional rather than decorative. The haze in a Bi Luo Chun is the down the process was designed to raise, and a drinker treating it as sediment is objecting to the tea’s defining feature.
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