What water temperature should I use for tea?
Quick answer
Use the tea's own starting point first: around 80 °C for green, white, and matcha, 90 °C for oolong and sheng puerh, 95 °C for black and shu puerh, and 100 °C for herbal infusions. Treat the number as a repeatable baseline, then adjust only after tasting.
The calculator above compares your current water temperature with the validated temperature stored in TeaForCalm's brewing data. It does not pretend that every kettle cools the same way. It simply tells you whether the water is close enough, too cool, or too hot for the selected tea.
Temperature starting points
| Tea lane | Starting temperature | First thing to adjust |
|---|---|---|
| Green, white, matcha | 80 °C | Cool first if the cup is sharp or grassy |
| Oolong, sheng puerh | 90 °C | Shorten time before making big temperature moves |
| Black, shu puerh | 95 °C | Keep it hot, then adjust steep time |
| Herbal infusions | 100 °C | Use full heat unless the blend tastes harsh |
Steep Time Chart
Once the water is in range, pair it with the matching first-steep time.
Use it with the guides
For the longer explanation, read the water temperature guide and the puerh water temperature guide. If the cup tastes harsh, use why tea gets bitter before changing leaf amount. Then run the same tea in the brewing timer so temperature and time stay repeatable.
Common questions
Do I need a temperature-control kettle? No. A thermometer or a kettle that shows temperature is convenient, but the practical habit is simpler: pick a target, wait or heat toward it, and repeat the same process next time.
Is boiling water always wrong for green tea? It is usually the wrong starting point for delicate green tea. Start cooler, around 80 °C, then adjust only if the cup is thin.
Why does the calculator use one number per tea type? Because these are starting points from the same data that powers the timer and grams calculator. They are not lab claims or universal rules.