Gongfu brewing (gaiwan)

How it works

A gaiwan of roughly 100-150 ml is filled perhaps a fifth to a third with leaf, and each infusion is poured off entirely after a short steep — often ten to twenty seconds early on, extending as the session continues. Because the leaf is never left sitting in water, extraction is controlled by time rather than limited by dilution, and the same leaf yields a sequence of distinctly different cups rather than one average one.

Why choose it

It shows a tea changing across a session, which is most of the point with complex oolongs and aged dark teas. It also rewards attention: small adjustments to timing are immediately audible in the cup.

Equipment

• Gaiwan — Porcelain (also glass; occasionally glazed stoneware)

Tea types it suits

Recorded on the method rather than inferred from the catalogue. A type missing here is not ruled out; it simply has not been written down.

• Dark tea and pu-erh
• White tea

Common problems

• Pouring off incompletely, so the next infusion starts already over-extracted
• Treating early infusion times as fixed rather than extending them as the leaf gives out
• Using a vessel too large for the amount of leaf, which turns the session into western brewing with extra steps

Diagnosed problems

Written from the symptom, with the likely causes in order and a question to rule each one out.

• Every infusion in my gongfu session tastes the same — The cups are pleasant and interchangeable, with none of the change from steep to steep the method is supposed to show.
• I cannot taste the difference between my expensive tea and my cheap one — Two teas at very different prices taste much the same in the cup, and the tasting notes on both packets describe things you cannot find.
• I filtered my water and the tea got worse — After switching to filtered, distilled or reverse-osmosis water the tea is cleaner and emptier — no off-notes, and no body either. It tastes thin and slightly hollow.
• My first infusion is always the worst one — The opening cup is thin, dusty or flat, and the second is markedly better — consistently, across different teas.
• My gaiwan is too hot to hold — The rim and lid become uncomfortable within seconds, the pour is rushed, and tea ends up on the tray.
• My gongfu brewing falls apart when I have guests — Sessions that work perfectly alone become chaotic with three or four people: the tea is inconsistent, the pours are rushed, and the cups arrive at different strengths and temperatures.
• My gongfu tea is bitter even at five seconds — The timer says five or ten seconds and the cup is over-extracted anyway, with the later infusions dropping off sharply.
• My green tea tastes flat and looks dark in this house — A delicate green tea that tasted bright elsewhere comes out dull and heavy here, with a darker, browner liquor than it should have and none of its aroma.
• My pu-erh cake will not break apart cleanly — The cake resists the pick, then gives way suddenly into powder and fragments rather than intact leaf.
• My pu-erh or dark tea tastes sour — A sharp, tart, almost vinegary note runs through a ripe pu-erh, a sheng or another dark tea where the description promised earthy sweetness.
• My pu-erh tastes exactly the same as when I bought it — A cake bought several years ago to age has not noticeably changed, and it was stored carefully.
• My roasted oolong tastes only of burnt toast — Char and ash dominate, and none of the fruit, mineral or floral character the tea was described as having comes through.
• My rolled oolong tastes of almost nothing — A tightly rolled oolong gives a pale, thin first cup, and the pellets are still mostly closed afterwards.
• My second infusion is much worse than the first — The first steep is good and the second is bitter, flat or both.
• My shou pu-erh tastes fishy or muddy — A ripe pu-erh has a pond-like, fishy or muddy note that overwhelms everything else.
• My tea arrived broken, with dust at the bottom of the packet — Whole-leaf tea bought at a whole-leaf price contains a lot of fragments, and there is fine material in the bottom of the bag.
• My tea goes cold before I finish it — The cup is lukewarm within a few minutes, and in a gongfu session the later infusions arrive noticeably cooler than the early ones.
• My teapot came out of the dishwasher damaged or tasting wrong — A pot or cup returns from a dishwasher cycle dulled, with faded decoration, a fine web of surface cracks, or a persistent taste that was not there before.
• My water is not the temperature the kettle says — The kettle is set to 80 °C and the tea behaves as though it were much hotter or much cooler, and the same setting gives different results on different days.
• My white tea cake tastes nothing like the loose version — A pressed white tea cake gives a darker, heavier, fruitier cup than loose white tea from the same grade, and the delicate hay-and-melon character is missing.
• My white tea tastes of almost nothing — The cup is pale and barely flavoured, and it stays that way whatever is adjusted.
• My young sheng pu-erh is unbearably harsh — A recent raw pu-erh is aggressively bitter and drying from the first infusion, with a rasping quality that stays in the throat.
• Tea runs down the outside when I pour — Liquor escapes past the lid or dribbles down the outside of the gaiwan or pot instead of going into the pitcher.
• The dry leaf smells wonderful and the tea tastes of nothing — Opening the packet gives a strong, attractive aroma that has largely disappeared by the time the tea is in the cup.
• The tea I loved in the shop is disappointing at home — A tea that was remarkable when it was tasted in the shop is ordinary in your own kitchen, from the same packet, within days of buying it.
• There is sediment in the bottom of my cup — A layer of fine dark particles settles out, and the last mouthful is gritty.

Teas with parameters authored for this method

255 teas have a parameter set written for gongfu brewing (gaiwan). The first 40 are shown, in alphabetical order. Each row is transcribed from that tea’s own record.

Other gongfu methods

Same family, so the approach is close — the vessel, the ratio and the intent still differ.

• Chaozhou gongfu brewing (three cups) — The eastern Guangdong household form of gongfu: a red-clay pot well under 100 ml packed with strip leaf, water off a hard boil, seconds-long infusions, and the liquor distributed by a continuous rotation into three cups rather than poured one cup at a time.
• Gongfu brewing (Yixing pot) — The same short-steep, high-leaf approach as gaiwan gongfu, carried out in a small unglazed clay pot that seasons over time and is dedicated to one tea.

Sources