Oolong Brewing

Begin with the water, not the leaf. Oolong is the most demanding of the categories to brew because it is the widest: the oxidation that defines a given oolong runs from roughly eight percent to eighty percent, and a green high-mountain tea and a dark roasted rock tea do not want the same heat, the same ratio, or the same patience. Two methods sit under this range. Gongfu, the small vessel packed with leaf and poured off in seconds across many infusions, is how the leaf is meant to be read. Western, one heaped measure in a larger pot for a few minutes, is the everyday pour. Learn the gongfu numbers and the Western ones follow.

The two methods, stated plainly

Gongfu means a small brewing vessel, a high leaf-to-water ratio, and a series of short infusions. A gaiwan of 100 to 150ml, or a small yixing pot, holds enough leaf that the first steep is counted in seconds. Té Company runs its own gaiwan recipe at 4 grams of leaf to 3.5 ounces (about 100ml) of water, a leaner 1:26 than the working band below, still gongfu-strength and nowhere near Western's dilution. The point is not ceremony. Concentration and control are the point. You extract a little at a time, taste the leaf change across the session, and stop when it has given what it has.

Western brewing does the opposite. More water, less leaf, a single long steep, one or two re-steeps at most. Saratoga Tea and Honey give the working figure as 5 grams per 16 ounces, roughly 5g per 470ml, steeped three minutes, with five to six further infusions at lengthening intervals. It is a fair pour, and it needs only a timer.

The two methods on the same dials, with the reasoning for each figure in the sections below:

Leaf-to-water ratio

Gongfu ratio is the dial that matters most. The standard is about 1 gram of leaf per 15ml of vessel volume, which white2tea states directly¹ and applies as roughly 6 to 7 grams in a 100ml gaiwan. For oolong specifically, a slightly leaner 1:20 is a common and defensible choice, near 5 grams to 100ml, to hold the subtler aromatics rather than crush them. Tealibere frames the gongfu range as 5 to 7 grams per 100 to 120ml. Take 1g per 15 to 20ml as your working band and settle it by taste.

Western ratio runs far leaner. Reckon about 2 to 3 grams per 200ml, in line with the 2 to 3 grams per 250ml Tealibere gives and close to the Saratoga figure of 5 grams per 470ml. The single dial to remember: gongfu concentrates, Western dilutes, and the two are not interchangeable at the same steep time.

Water temperature, set by oxidation

Heat follows oxidation and roast. A greener, less-oxidized oolong wants less of it. Tealibere gives the working bands, and they are the ones to keep.

• Light and green oolongs, tie guan yin and high-mountain gaoshan, want 85 to 90C (about 185 to 194F). Near boiling, never at it.
• Medium oolongs and phoenix dancong want 90 to 96C (about 194 to 205F).
• Dark and roasted oolongs, wuyi yancha and the heavier dong ding, want 96 to 100C (about 205 to 212F), up to a full boil.

The reason is physical. A lightly oxidized leaf still carries green, vegetal notes that scald into bitterness above 90C (about 194F), so you hold the kettle back. A roasted or heavily oxidized leaf has had those volatiles cooked off, and it takes full heat to draw out the heat-stable compounds roasting leaves behind. White2tea places oolong broadly at 95 to 100C (about 203 to 212F) for the darker end of the category, which agrees at the roasted margin. If you are unsure of a tea, start cooler. You can always add heat on the next infusion. You cannot take it back from a scalded first steep.

Anxi's own tieguanyin brewers complicate the tidy rule that lighter oxidation always means cooler water. Chinese-language brewing guidance for tieguanyin puts most modern, lightly-oxidized styles at a still-hot 95C (about 203F), and pushes the fresh-fragrant and rhyme-fragrant (鲜香/韵香) styles all the way to a full 100C boil, on the reasoning that full heat better reveals the tea's yun, the resonant character (韵) the style is named for. A light oolong is not automatically a cool-water oolong.

The rinse, and why rolled and roasted leaf need it

A rolled oolong arrives as a tight pellet. When you brew a ball-rolled tie guan yin or gaoshan, only the outside of the pellet meets the water at first, so the opening infusion tastes thin and closed. The awakening step fixes this. Fill the warmed vessel with your target-temperature water, then pour it straight off and discard it. Eco-Cha describes the step precisely: fill with hot water and immediately pour off the rinse before the first real infusion. It wakes the leaf, warms the gaiwan and pitcher, and lets the pellet begin to unfurl so the first drinking steep arrives already open.

Roasted oolongs take the rinse for a second reason. A quick pass of hot water lifts the surface char and settles the roast, so the first cup reads clean rather than ashy. Rinse rolled and roasted oolong as a rule. A twisted, open-leaf oolong such as a phoenix dancong can skip it, though a fast rinse never hurts. Keep the rinse to a second or two. It is a wash, not a steep.

Steep times, and how they lengthen

Gongfu times start short and grow. After the rinse, begin the first drinking infusion at 20 to 40 seconds for oolong, the band Tealibere gives, leaning longer for a tightly rolled tea still unfurling from its pellet and shorter for an already-open roasted leaf. Then add roughly 10 to 15 seconds to each successive infusion as the leaf gives up flavour more slowly. White2tea's own progression is a flash first steep with about 10 seconds added each round, then stretching toward two-to-three-minute infusions once the tea pales at the end of a long session. The principle is constant. As the leaf tires, you extend the steep to draw the same strength.

Western is one motion. Three minutes for the first pour at 90C (about 194F), per Saratoga, then lengthen each re-steep by a minute or so. Because the ratio is lean and the steep long, the leaf is worked harder per infusion, which is why Western yields fewer rounds than gongfu.

How many infusions oolong sustains

This is oolong's quiet reward. A good gongfu session runs eight to twelve infusions for a well-made oolong, comfortably past the five or six white2tea gives as a floor for any tea, and a dense rolled gaoshan or a well-made yancha will go further. The leaf opens gradually, so the middle infusions, the fourth through the seventh, are often the finest of the session, after the pellet has fully unrolled and before it fades. Western brewing gives less: five or six re-steeps beyond the first, per Saratoga, because each long steep takes more from the leaf at once. Either way, do not throw the leaf after one pour. Oolong that stops at a single infusion has been wasted.

Water, the ingredient you forgot

Tea is almost entirely water, so the water is not a detail. White2tea's guidance is sound: use spring or well water, and if your tap is hard, cut it with distilled to soften the mineral load, but do not brew on pure distilled or reverse-osmosis water, which is too empty to extract properly. Minerals carry flavour. Too many mute it, none at all starve it. Aim for soft, clean, low-mineral water, and never re-boil a kettle that has already been boiled and sat, because flat, over-boiled water dulls the cup.

The method, in one breath

Warm the vessel. Weigh 1 gram of leaf to 15 to 20ml for gongfu, or about 2 to 3 grams to 200ml for Western. Heat the water to 85 to 90C (about 185 to 194F) for a green oolong, 96 to 100C (about 205 to 212F) for a roasted one. Rinse a rolled or roasted leaf and discard it. First gongfu steep 20 to 40 seconds, adding 10 to 15 seconds each round, across eight to twelve infusions, or one three-minute Western steep with a few re-steeps behind it. Then watch the leaf, and let it tell you the rest.