Fu Zhuan Dark Tea Brick
Malt, dried fruit and a honeyed sweetness from a Hunan brick grown through with golden flower.
Fu zhuan, or fu brick, is a dark tea from Hunan pressed into a brick and grown through with golden flower, a yellow bloom that gives the tea its sweetness. The cup is dark amber, with malt, dried fruit and date.
Sensory profile
You should taste
How it unfolds
Where it sits
That is 40 mg in one serving (8 oz cup (240ml)), a concentration of 16.7 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 | 1:20 |
| Leaf & water per infusion | 5g → 100g |
| Grind size | Pressed Brick, Broken into Chunks |
| Water temperature | 212°F / 100°C |
| Target brew time | 15 seconds for the first infusions, plus about 8 seconds each round |
| Serving used for caffeine | 8 oz cup (240ml) — see the mug or teapot version below |
What you need
- 5 g compressed or loose dark tea
- 100 g filtered water at 100°C
Required gear
Step-by-step protocol
- 0:00Warm the gaiwan or pot with hot water and discard it. Add 5 g of leaf and smell the warmed leaf before brewing.
- 0:20Rinse: cover with water at 100°C and pour off immediately. This wakes the leaf; do not drink it.
- 0:40First infusion — pour off after 15 seconds, decanting completely.
- 1:20Second infusion, 15 seconds.
- 2:00Third infusion, 20 seconds. From here add about 8 seconds each round.
- 2:45Keep going until the liquor pales — good leaf gives eight to fifteen 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
- 212°F / 100°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.
- 0:30Rinse: cover the leaf with water at 100°C and pour it off after a few seconds. Do not drink it.
- 0:50Pour 240 g of water at 100°C over the leaf, cover, and start the timer.
- 3:50Lift the leaf out or pour the tea off the leaf completely. Leaf left in the cup keeps extracting and turns the last mouthful bitter.
For a bigger pot, simmer 5 to 10 g of broken brick in 500 ml of water for three to five minutes and strain.
What it may be good for
The caffeine count
We list about 40 mg for an 8 oz cup.
Find the golden flowers
The golden specks in the brick are the golden flower, and a brick with plenty of them, spread evenly, is generally taken as a sign of good tea. Break a corner open to see them.
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.
- Some sellers advise people with a gluten allergy or celiac disease to avoid fu brick tea, which is grown through with the golden flower fungus. If that applies to you, check with your doctor first.
Fu zhuan, or fu brick, is a dark tea from Hunan pressed into a brick and grown through with golden flower, a yellow bloom that gives the tea its sweetness. The cup is dark amber, with malt, dried fruit and date. Brewed gongfu style in boiling water, or simmered.
Origin & Story
The name carries a history. Fu brick tea began more than 600 years ago in Jingyang, in Shaanxi, where tea from Hunan and Sichuan came to be finished before it went north and west. Jingyang sat at the last crossroads between farming China and the nomadic lands, and the tea was a necessity for the herders of Tibet, Mongolia and Xinjiang.
Zhuan simply means brick. Fu is said to come from the fu days, the hottest stretch of summer, when the bricks were dried and the golden flower grew best, though some say it also echoes the word for good fortune.
In Jingyang's warehouses a golden-yellow mold, Eurotium cristatum, now classed as Aspergillus cristatus, appeared in the bricks. It was found by accident, and tea makers learned that it made the tea sweeter and less bitter.
In the 1950s production moved to Anhua in Hunan, where the leaf grows, because hauling it all the way to Shaanxi no longer made sense, and the first Anhua fu brick was made in 1953. The leaf is steamed, piled, pressed into a brick, and then held warm and humid for weeks so that the golden flower can grow before the brick is aged.
In the cup, fu brick tastes earthy and honeyed, with malt, brown sugar and red dates, and sometimes a note like bread dough.
Break 5 g from the brick, rinse it with boiling water for five seconds, pour the first infusion off at 15 seconds and add about eight seconds a round; for a mug, 3 g in 240 ml of boiling water for three minutes, or simmer 5 to 10 g in 500 ml for three to five minutes.
Reading the Flavor Profile
| Axis | Score |
|---|---|
| Sweetness | 70/100 |
| Acidity | 20/100 |
| Bitterness | 34/100 |
| Body | 84/100 |
| Aroma | 86/100 |
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 Fu Zhuan Dark Tea Brick?
One serving, 8 oz cup (240ml), contains approximately 40 mg of caffeine.
What temperature should I use for Fu Zhuan Dark Tea Brick?
Target 100°C (212°F).
How long should Fu Zhuan Dark Tea Brick be extracted?
Timing: 15 seconds for the first infusions, plus about 8 seconds each round. Method: Gaiwan or Mug. Ratio: 5g per 100ml water (gaiwan). Grind or leaf format: Pressed Brick, Broken into Chunks.
Why does my Fu Zhuan Dark Tea Brick 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 is the golden flower in fu brick tea?
Jinhua, golden flower, is a yellow fungus, Eurotium cristatum, now classed as Aspergillus cristatus, that grows in the brick during its warm, humid stage. It shows as golden specks and gives the tea a honeyed sweetness; more of it is generally taken as a sign of better tea.
Why is it called fu zhuan?
Zhuan means brick. Fu is said to come from the fu days, the hottest part of the summer, when the bricks were made and the golden flower grew best, though some say it also echoes the word for good fortune.
Can I boil fu brick tea?
Yes, and in northwest China that is the usual way. Simmer about 5 to 10 g of broken brick in 500 ml of water for three to five minutes, then strain it.
Who should avoid Fu Zhuan Dark Tea Brick?
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. Some sellers advise people with a gluten allergy or celiac disease to avoid fu brick tea, which is grown through with the golden flower fungus. If that applies to you, check with your doctor first. 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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