Tea Lab

The History: The Frozen Summit

Dong Ding (literally “Frozen Summit”) is perhaps the most famous of all Taiwanese oolongs. Its origins date back to the mid-19th century when a scholar brought 12 tea seedlings from the Wuyi Mountains in Fujian to the Lugu area of Taiwan.

The name “Frozen Summit” refers to the steep, slippery slopes of the mountain where the tea was grown—local farmers had to “freeze” their toes to grip the muddy path as they climbed. This tea pioneered the traditional medium-roast, medium-oxidation style that defined Taiwanese tea for generations before the modern trend toward “high mountain” light oolongs.


Geography: The Mist of Lugu

The heart of Dong Ding production is Lugu Township in Nantou County, Central Taiwan.


Decoding the Styles: Traditional vs. Competition

In Taiwan, Dong Ding is the star of the world’s largest tea competition.

1. Traditional Dong Ding

Slow-roasted over charcoal for several days.

2. Modern/Competition Style

Often lighter in roast to highlight the floral notes of the leaf.


How to Identify Quality

A true Dong Ding should have a “honey-sweet” roasted character, never an ashy or burnt taste.

FeatureHigh-Quality (Premium)Lower-Quality (Mass Market)
AppearanceTightly rolled “hemispherical” beads; dark green-brown.Loose, uneven rolls or many stems; grayish-black.
AromaToasted nuts, honey, dried fruit, and a hint of orchid.Burnt charcoal, stale hay, or no aroma.
LiquorClear, bright amber or golden-orange; viscous.Dull yellow or murky brown.
Taste“Hou Yun” (throat rhyme)—a sweet, lingering finish; thick body.Thin, watery, or harshly bitter.

Reputable Brands & Where to Buy

Genuine Lugu Dong Ding is distinct from generic “Taiwan Oolong” grown in other regions.

Reputable Specialized Brands:


Dong Ding is the “steak” of Taiwanese teas—bold, savory, and satisfying. If you are new to oolongs, a medium-roast Dong Ding is the perfect introduction to the world of roasted teas.