Brew assistant
Pick a tea and a brewing style. Everything below is transcribed from that tea's own authored parameters — nothing is scaled from another style, because a ratio and a steep time do not transfer between styles.
Water temperature
40–55 °C
Typically 45 °C
Leaf for 250 ml
20–37.5 g
Typically 25 g
Ratio
8–15 g /100 ml
No rinse
Infusion schedule
A session of 3–4 infusions is typical. The schedule below is authored to 4; beyond that, extend each steep noticeably rather than repeating the last time.
- Infusion 1150sUnhurried by Japanese standards, and correct. At this temperature the leaf gives up its sweetness slowly and its harshness barely at all.
- Infusion 245sat 60 °CHotter and far shorter. The leaf is already open, and the second steep is where most of the remaining volume comes from.
- Infusion 325sat 70 °C
- Infusion 420sat 80 °C
Equipment
- Houhin
- Shiboridashi
- Kyusu
- Thermometer
- Water cooling bowl (sukwoo)
- Yuzamashi (water cooler) — Broad surface, shallow layer, fast heat loss — the standard way to reach gyokuro temperatures without guessing.
- Kyusu filter — Shaded leaf sheds a great deal of fine material, so filtration area decides whether the cup arrives clear.
Vessel: A houhin or shiboridashi: handleless, because at this temperature there is nothing to burn a hand on, and broad and shallow, so pouring cools the water further. Drain it to the last drop — leaf sitting in warm water starts the next steep already spent.
Note: The temperature range is for the first steep; the schedule carries the rest. Long shading is what makes this worth doing: the leaf carries more of what dissolves readily in cool water and less of what needs heat, so cool water selects rather than merely slows. The liquor is a mouthful rather than a cup, and that is the method working rather than a mistake.
What this does not tell you
These parameters are a synthesis of common practice rather than recorded practice for this specific tea.
Leaf weight is a weight. A teaspoon is not — a fluffy white tea and a tightly rolled oolong differ several-fold by volume, so scales beat spoons here.
Other authored styles for this tea: Western brewing (teapot or mug) · Kyusu brewing (Japanese style) · Cold brew tea · Gongfu brewing (gaiwan) · Ice steeping (kōridashi)
Methods TeaHQ describes but cannot give numbers for
1 of 28 brewing methods have no authored parameters on any tea. They are listed rather than hidden: the method exists and is described, the numbers are simply not written yet. Nothing here is estimated from a neighbouring style.
- Herbal infusion (tisane)
Herbal infusion is on that list for a second reason as well: the herbal catalogue is two records held in review, so there is nothing to brew even once parameters exist.