Tea Brewing Calculator
Enter your cups and strength; get an exact herb weight, water volume, temperature and steeping time.
Calculator
Brew Strength Calculator
Adjust brew strength and instantly see how herb, time and temperature should change together.
Strength isn't just about adding more herb. It's a balance of ratio, time and temperature that all shift together.
Move the strength slider and this tool recalculates all three variables so your cup lands exactly where you want it.
How to use it
How to use the Brew Strength Calculator
Select your herb and drag the strength slider from delicate to bold. The tool updates herb weight, steep time and water temperature in real time so all three variables stay balanced.
- Choose your botanical from the list or type to search.
- Drag the strength slider to your preferred intensity.
- Review the updated ratio, time and temperature combination.
- Save or copy the result for your next brew session.
Understanding why these three variables move together is the key insight in our Herbal Tea Brewing Basics guide. For a look at how flavour character changes with strength, our Understanding Tea Flavor Profiles guide goes into detail.
The strength slider is also a useful learning tool. Moving it from one end to the other shows clearly how much each variable shifts for a given herb — a practical way to build intuition about how ratio, time and temperature interact before experimenting at the kettle.
Questions & answers
FAQs — Brew Strength Calculator
A bold brew has a higher herb-to-water ratio and a longer steep time. The result is a fuller, more concentrated flavour. It can also make some herbs taste more bitter, which is why the tool adjusts temperature too — to keep bitterness in check.
You can, but most herbs become astringent or bitter if steeped too long rather than simply stronger. Increasing the ratio first and keeping the steep time moderate gives a cleaner result.
Light strength produces a more delicate, nuanced cup — often the best choice for subtle florals like rose or elderflower where a heavier brew would overwhelm the aroma.
Yes — adding milk or sweetener softens the intensity of the infusion. If you usually add either, you may want to brew at the next strength level up before adding them.