Your water matters. Now you can see how much.
Tea is almost all water, and hard, alkaline, or chlorinated water can flatten even great leaf. Save the waters you use with their chemistry, compare them side by side, and see which suits each tea.
Tea NerdWater tracker is part of Tea Nerd, $7 a year or $20 for life. Unlocked for everyone during early access.Compare plans
Same tea, same recipe, same vessel. Only the water changed. Low alkalinity with modest mineral content is a good starting point; the best water depends on the tea.
How it works
- 01
Add your waters
Filtered tap, a spring water, whatever you use. Add TDS, hardness, alkalinity, calcium, magnesium, and pH from the label or a test kit if you know them.
- 02
Pick one when you brew
The water you used last for that tea is selected for you.
- 03
Run an A/B test
Same tea, same recipe, same vessel, one cup per water. Score them side by side and see which wins for that tea.
The details
Fair comparisons
Everyday averages mix different teas and recipes. An A/B test changes only the water, so the answer is like for like.
A starting point
Low alkalinity with modest mineral content is a good starting point; the best water depends on the tea.
A default
Set the water you use most as the default so you rarely have to pick.
Questions
What water is best for tea?
Low alkalinity with modest mineral content is a good starting point; the best water depends on the tea. Distilled water tends to taste flat, and very hard water dulls aroma. That's why it's worth testing your own.
Is this part of the free plan?
The water tracker is part of Tea Nerd, and is unlocked for everyone during early access.