How long to steep tea

Art of Tea publishes one to three minutes for green and white tea, three to five for black, three to seven for oolong depending on leaf style, and five to seven for herbal tisanes. Within those ranges it is your preference. Beyond the top of them it stops being preference and starts being chemistry.

The times

Why the ranges are wide

Because time is the parameter you are most entitled to adjust. If you like your black tea at four minutes and someone else likes it at three, neither of you is doing it wrong.

Leaf grade also moves the number. Finer, more broken leaf extracts faster because there is more cut surface per gram; whole leaf extracts more slowly and more evenly. That is why long-leaf oolong gets a longer published range than rolled oolong at the same temperature.

What over-steeping actually does

It is not simply stronger tea. Different compounds come out of the leaf at different rates, and the ones that arrive late are tannins, which taste bitter and feel drying in the mouth.

So a ten-minute green tea is not a concentrated three-minute green tea. It is a three-minute green tea plus a load of astringency you did not want, and no amount of milk or sugar puts that back.

Temperature and time work together

The two parameters are not independent. Hotter water extracts faster, so the same green tea at 212F for two minutes will be harsher than at 175F for three.

This matters when you are adjusting. If a tea is coming out astringent, drop the temperature before you cut the time — you will keep the body and lose the harshness, where cutting time loses both.

Removing the leaves is part of the time

Extraction stops when the leaves leave the water, not when the timer sounds. An infuser left sitting in the mug is still steeping, and a teapot with leaves in it is still steeping between the first cup and the third.

This is the practical argument for a liftable basket and for a press pot. The Bodum Assam plunges the leaves below its filter, which ends extraction mechanically — the only reliable solution if the pot sits on a table.

Re-steeping changes the arithmetic

Whole-leaf tea will often give a second and third infusion, and each successive one needs a little more time because the most soluble compounds have already gone.

Gongfu-style brewing inverts the whole table: far more leaf, twenty to thirty seconds per infusion, many rounds. Both approaches are correct; they are answering different questions about the same tea.

What we did not do

No timed tastings, no extraction measurements, no laboratory. The times above are Art of Tea's published guidance and the explanations are the standard account of how tea extracts. If we ever publish a figure of our own, it will be labeled as ours.