Gongfu Ratios and Infusion Schedules: The Numbers Behind the Method

Gongfu Brewing 101 covers the idea behind the method: more leaf, a smaller vessel, and a series of short, escalating infusions instead of one long steep. This is the numbers version — a complete worked session from gram amount through the full infusion schedule, and why those numbers differ as much as they do from one tea type to the next. Knowing the concept is enough to try the method once; knowing the actual numbers is what makes it repeatable, since "more leaf, shorter steeps" on its own doesn't tell you how much more or how much shorter.

Starting point: how much leaf for how much water

For a 120ml gaiwan — a common size for gongfu brewing — the gongfu-style ratio works out to: white tea 4.2g, green and yellow tea 3.6g, oolong 6.6g, black tea 4.8g, pu-erh 6g, and herbal tisane 2.4g. Compare that to the same 120ml at Western-style ratios (roughly 1.0–1.4g depending on type) and the gap is obvious: gongfu brewing uses somewhere between three and five times as much leaf in the same volume of water, with oolong showing the widest gap of any type, since its dense, rolled leaf structure supports the highest ratio in the gongfu column at 55g per litre.

A full oolong session, infusion by infusion

Take that 6.6g of oolong in a 120ml gaiwan through an 8-infusion session. Starting at 20 seconds and adding 10 seconds each round, the schedule runs: 20s, 30s, 40s, 50s, 60s, 70s, 80s, 90s. Add every infusion together and the entire session totals 7 minutes 20 seconds of steeping time, spread across eight separate cups, from the same 6.6g of leaf. A single Western-style steep of that same oolong, by contrast, would use roughly 1.2g of leaf (for the same 120ml) in one 3–5 minute pour, extracting whatever that one steep can pull out and then discarding leaf that, in the gongfu version, would still have several more rounds left to give.

Why the increments differ by type

The starting time and the amount added each round aren't arbitrary, and they differ meaningfully across tea types. Over six infusions, green and yellow tea run 10, 15, 20, 25, 30, 35 seconds — a light 10-second start with a small 5-second increment, suited to delicate, quick-extracting leaf. Oolong runs 20, 30, 40, 50, 60, 70 — a longer 20-second start with a bigger 10-second increment, reflecting both its denser leaf and the extra time rolled leaf needs to unfurl. Black tea runs 15, 23, 31, 39, 47, 55, an 8-second increment on a 15-second start. Pu-erh starts at just 10 seconds (its compressed, aged leaf gives up flavor readily once broken apart) but also increments by 8 seconds a round. Herbal tisane is the outlier by a wide margin, starting at a full 60 seconds and adding 30 seconds each round, since dried flowers, roots, and barks give up their flavor far more slowly than actual tea leaf.

Why 120ml specifically

120ml is used as the worked example here because it's a common, middle-of-the-road gaiwan size — small enough to fit the gongfu premise of a concentrated, quickly-decanted vessel, large enough to be a practical everyday size rather than a specialty miniature. Vendors sell gaiwans anywhere from roughly 80ml up to 200ml or more, and there's no single "correct" size; the ratio math simply needs to track whichever vessel you actually own.

Scaling the ratio to a different vessel

The gram figures above are specific to a 120ml gaiwan, and they scale linearly with vessel size rather than staying fixed — the ratio itself (grams per litre) is what's constant for a given tea type and style, not the gram amount. A smaller 80ml gaiwan of the same oolong would take roughly 4.4g rather than 6.6g; a larger 150ml gaiwan would take roughly 8.25g. This matters because gongfu vessels vary more in size than most people expect — anywhere from a tiny 60ml gaiwan to a 200ml or larger teapot is common — and using a fixed "gongfu-style" gram amount regardless of vessel size reintroduces exactly the ratio problem that a Western-style fixed teaspoon causes, just at a higher baseline. Always scale from the vessel's actual volume, not from a remembered gram figure that worked for a different pot.

The ceiling that keeps late infusions reasonable

Left unchecked, a simple "add a fixed amount every round" schedule would eventually demand an unreasonably long final infusion in a long session. The schedule caps every infusion at two minutes, regardless of how many rounds have already happened. A 15-infusion pu-erh session, for instance, climbs 10, 18, 26, 34, 42, 50, 58, 66, 74, 82, 90, 98, 106, 114, and then holds at 120 seconds for infusion 15 rather than climbing to 122 — the ceiling keeps a long session's last few rounds from becoming a several-minute steep that would defeat the entire premise of quick, successive infusions.

Common mistakes with the gongfu numbers

A few specific errors show up often enough to call out directly. Using a Western-style gram amount in a gongfu-sized vessel — say, the roughly 1.2g a 120ml Western steep would call for — produces a session so weak it can make a genuinely good tea seem unremarkable, since the entire premise of many short infusions depends on having enough leaf mass to sustain them. Going the other direction, guessing at a "generous pinch" without weighing anything, often overshoots the gongfu ratio further still, since gongfu amounts already look surprisingly large the first time you see them on a scale, and an ungauged guess tends to compound that impression rather than correct for it. And keeping the same seconds-based schedule while switching to a noticeably larger or smaller vessel ignores that the schedule's timing was calibrated against a specific leaf mass and surface area; if the ratio changes with vessel size, treating the timing as fixed regardless is really applying half of a scaled recipe without the other half.

What this costs in leaf, concretely

Because gongfu brewing uses several times as much leaf per session as a single Western steep, it's worth being honest about the tradeoff rather than treating it as free. That 6.6g of oolong for one session is roughly what a Western-style brewer would use across two full 350ml pots (at 3.5g per pot); the leaf is simply being spent differently — concentrated into one small-vessel session with many infusions instead of stretched across fewer, larger steeps. Neither approach uses "more tea" in any absolute sense over the course of a day if you account for how much liquid each style actually produces; gongfu just front-loads more leaf into a smaller volume per pour.

Why decanting fully matters for the numbers to hold

The whole schedule assumes each infusion starts from a fully drained, empty vessel — leaf sitting in residual water between pours keeps extracting during the "gap" between timed infusions, adding an untimed, unaccounted-for steep on top of the scheduled one. Over a long session, this compounds: a gaiwan that isn't fully decanted after each round effectively runs a slightly longer, uncontrolled version of the schedule every single time, and by infusion six or seven the accumulated extra contact time can be substantial even though no single round looks obviously off. Decanting fully and promptly — tipping out every last drop rather than "close enough" — is what keeps the escalating-seconds math actually meaningful rather than a rough suggestion.

How many infusions is "worth it"

The schedule's slope also hints at how many rounds a tea type can reasonably sustain before diminishing returns set in. Green and yellow tea, with a small 5-second increment, climb slowly — by infusion six they're only at 35 seconds, still well within a quick, easy pour, which is part of why a good green tea can often go a further round or two past where a black or oolong session might start to taper. Oolong and black tea, with steeper 8–10 second increments, reach 70–90 second infusions by round six or seven, noticeably slower pours that make each additional round a bigger time commitment. None of this is a hard rule for exactly when to stop — the tea's own flavor, not the clock, is still the real signal — but the shape of the schedule is a reasonable preview of how a session with a given tea type will feel to sit through.

Putting it together

A complete gongfu session, start to finish: weigh leaf at the gongfu ratio for your vessel's actual volume (not a rough guess — the ratio gap between styles is too large for eyeballing to land close), rinse briefly and discard that pour, then work through the infusion schedule for your tea type, decanting fully and promptly after each one. Watch the cup rather than the clock alone as the session goes on — once an infusion tastes noticeably thinner than the one before it despite following the schedule, the leaf is spent regardless of what infusion number you're on. For the exact grams for your own vessel size, the Tea-to-Water Ratio Calculator handles the conversion, and the Gongfu Brew Timer runs the escalating schedule and counts down each round automatically.