Tea Brewing Calculator
Enter your cups and strength; get an exact herb weight, water volume, temperature and steeping time.
Calculator
Tea Temperature Calculator
Find the ideal water temperature for any herb in seconds — displayed in both °C and °F.
Temperature is one of the most overlooked brewing variables. Too hot and you scorch delicate flowers; too cool and roots never fully open up.
This calculator gives you the right target temperature for any botanical, with practical kettle tips to hit it without a thermometer.
How to use it
How to use the Tea Temperature Calculator
Select the type of herb or botanical you're brewing — flower, leaf, seed, root or bark — and the tool returns the recommended water temperature in both Celsius and Fahrenheit, along with a plain-English kettle guide.
- Choose your herb category or search for a specific botanical.
- Read the recommended temperature range in °C and °F.
- Follow the kettle tip to reach that temperature without specialist equipment.
- Set your timer and steep as usual.
Temperature and steep time work together — pairing this tool with our Herbal Tea Brewing Basics guide gives you the full picture. You can also explore how heat shapes flavour in our Botanical Brewing Guide.
Getting temperature right is especially important for blends. The tool flags when a blend contains ingredients with conflicting temperature needs and suggests a practical compromise so you do not have to choose between them.
Once you have your target temperature locked in, the Herbal Brewing Timer handles the steep time so both critical variables are covered in the same session.
Questions & answers
FAQs — Tea Temperature Calculator
Boiling water (100 °C / 212 °F) is perfect for hardy roots and seeds. But delicate flowers and some leaves release bitter or astringent compounds at full boil — slightly cooler water draws out the pleasant aromatic notes instead.
Let freshly boiled water rest for 1–2 minutes to drop roughly 5–8 °C. For a bigger drop, pour between two vessels once or twice — each transfer loses around 5 °C more.
Yes — water boils at lower temperatures at altitude. At 2,000 m it boils around 93 °C rather than 100 °C. The calculator shows sea-level targets; at high elevation you may need to steep a little longer to compensate.
For blends, use the temperature that suits the most delicate ingredient. You can always steep the tougher botanicals separately and combine the infusions.