Dong Ding Oolong
Toasted grain, orchid and a softly creamy finish in Taiwan's classic roasted ball oolong.
Dong Ding is a ball-rolled Taiwanese oolong named for Frozen Summit mountain in Lugu, Nantou. Traditionally it is moderately oxidized and roasted, which gives a warm, toasty cup with orchid and stone-fruit notes.
Sensory profile
You should taste
How it unfolds
Where it sits
That is 38 mg in one serving (8 oz cup (240ml)), a concentration of 15.8 mg per 100 ml. The scale above ranks whole servings, and servings differ in size, so a larger drink can sit further right while being weaker cup for cup.
Editorial estimate, not a laboratory measurement
Related gear
| Brewing method | Gaiwan or Mug |
|---|---|
| Brew ratio | 1:17 |
| Leaf & water per infusion | 6g → 100g |
| Grind size | Ball-Rolled, Roasted |
| Water temperature | 203°F / 95°C |
| Target brew time | 20-30 seconds for the first infusions, plus 10 seconds each round |
| Serving used for caffeine | 8 oz cup (240ml) — see the mug or teapot version below |
What you need
- 6 g loose-leaf oolong
- 100 g filtered water at 95°C
Required gear
Step-by-step protocol
- 0:00Warm the gaiwan or pot with hot water and discard it. Add 6 g of leaf and smell the warmed leaf before brewing.
- 0:20Rinse: cover with water at 95°C and pour off immediately. This wakes the leaf; do not drink it.
- 0:40First infusion — pour off after 20 seconds, decanting completely.
- 1:25Second infusion, 20 seconds.
- 2:10Third infusion, 25 seconds. From here add about 10 seconds each round.
- 3:00Keep going until the liquor pales — good leaf gives six to eight infusions.
Brewing it in a mug or teapot
The gongfu method above packs a lot of leaf into a small vessel. This version is for a 240 ml cup — the serving the caffeine figure describes.
- Leaf
- 3 g
- Water
- 240 ml
- Temperature
- 203°F / 95°C
- Steep
- about 3 minutes
- 0:00Warm the mug or teapot with hot water and pour it away, so the brewing water does not lose heat to cold ceramic.
- 0:15Add 3 g of leaf.
- 0:30Pour 240 g of water at 95°C over the leaf, cover, and start the timer.
- 3:30Lift the leaf out or pour the tea off the leaf completely. Leaf left in the cup keeps extracting and turns the last mouthful bitter.
Roasted oolong stands up to hot water and a full three-minute steep. The same leaf gives two or three more infusions, each about 30 seconds longer.
What it may be good for
How strong is it?
We list about 38 mg for an 8 oz cup.
Hot water for a roasted tea
The roast is what sets Dong Ding apart, and it is why this tea takes water at about 95°C, hotter than the 85 to 90°C often used for unroasted high mountain oolong.
What to watch out for
- Caffeine affects everyone differently. If you are pregnant or nursing, sensitive to caffeine, or have been told to limit it, check with your doctor about how much tea is right for you.
Dong Ding is a ball-rolled Taiwanese oolong named for Frozen Summit mountain in Lugu, Nantou. Traditionally it is moderately oxidized and roasted, which gives a warm, toasty cup with orchid and stone-fruit notes. Brewed with water just off the boil, about 95°C.
Origin & Story
Dong Ding means frozen summit. It is the name of a modest mountain in Lugu township, in Nantou County, at roughly 600 to 800 meters, and of the roasted ball oolong that made the mountain famous. The tea's founding story begins in 1855, when a Lugu scholar named Lin Fengchi is said to have brought Qingxin oolong plants home from the Wuyi Mountains in Fujian and set them out at Dong Ding. Accounts of the date and the details vary, so read it as the tea's legend.
Qingxin is still the backbone of Taiwanese tea, about 60 percent of production, and Dong Ding has been rolled into tight green balls and roasted for as long as anyone can say. The traditional leaf is moderately oxidized, about 30 to 40 percent by two accounts, and then roasted in slow rounds, which is why the dry leaf smells of toast and the liquor runs amber.
In the 1980s Dong Ding sat at the top of the Taiwanese tea world, made in the hong shui, or red water, style, with fuller oxidation and long, slow roasting. Then lighter, unroasted oolongs from higher gardens took the prestige. The Lugu Farmers' Association has held a Dong Ding oolong competition since 1976, and its 50th contest in 2026 was expected to draw more than 5,000 entries.
Dong Ding is both a place and a style. Like Darjeeling, the name once meant tea grown on the mountain, but today it also names a roasted ball oolong made elsewhere in Nantou, so the label matters, and some modern lots skip the roast and are made greener in the high mountain way.
In the cup, a classic Dong Ding tastes of caramel and roasted grain, with orchid and stone fruit underneath, sweet and savory at once, with a nutty or sesame edge. It is warmer and rounder than the bright, floral high mountain oolongs.
Put 6 g in a 100 ml gaiwan with water at 95°C and pour off the first infusion at about 20 seconds, adding ten seconds a round; in a mug, use 3 g in 240 ml at 95°C for three minutes.
Reading the Flavor Profile
| Axis | Score |
|---|---|
| Sweetness | 78/100 |
| Acidity | 24/100 |
| Bitterness | 28/100 |
| Body | 72/100 |
| Aroma | 92/100 |
These values are comparative editorial positions within our own catalog, calibrated so entries can be ranked against each other. They are not laboratory measurements.
How much caffeine is in Dong Ding Oolong?
One serving, 8 oz cup (240ml), contains approximately 38 mg of caffeine.
What temperature should I use for Dong Ding Oolong?
Target 95°C (203°F).
How long should Dong Ding Oolong be extracted?
Timing: 20-30 seconds for the first infusions, plus 10 seconds each round. Method: Gaiwan or Mug. Ratio: 6g per 100ml water (gaiwan). Grind or leaf format: Ball-Rolled, Roasted.
Why does my Dong Ding Oolong taste bitter?
In gongfu, bitterness comes from pours that run too long or from too little leaf for the vessel. Keep the early infusions short, pour the tea off the leaf completely every time, and fill the gaiwan or pot generously; an under-filled vessel tastes thin and tannic rather than gentle.
What does Dong Ding mean?
Dong Ding means frozen summit. It is the name of a mountain in Lugu township, Nantou County, Taiwan, where oolong plants from Fujian were set out in the 1800s. Today it also names a style of roasted ball oolong, so check where a tea was grown.
Is Dong Ding a Wuyi tea?
No. By the tea's founding story the plants came from the Wuyi Mountains in Fujian, but Dong Ding is a Taiwanese tea: rolled into balls, grown in Nantou and roasted in its own style. Wuyi rock oolongs are a different tea.
Is Dong Ding always roasted?
Traditionally yes, with a moderate roast, but some modern lots are made in the greener high mountain style. Look for the word roasted, or hong shui, if you want the classic toasty cup.
Who should avoid Dong Ding Oolong?
Caffeine affects everyone differently. If you are pregnant or nursing, sensitive to caffeine, or have been told to limit it, check with your doctor about how much tea is right for you. This information is educational and is not medical advice. If you are pregnant or breastfeeding, managing a cardiac or gastrointestinal condition, or taking prescription medication, discuss caffeine and botanical intake with a qualified healthcare professional before making changes.
What people say
Plain Porcelain Gaiwan, 110 ml
In this recipe: Gaiwan or small clay pot, 100–150 ml
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