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Water Checklist

A quick tea-water checklist for chlorine, hard water, stale kettle water, RO water, and temperature mistakes.

Water check

Find the first water fix

Tick what you notice in the cup. The checklist keeps the advice narrow: fix one water variable, then brew again.

What do you notice?

Try this next

Start with the boring good default

Use fresh cold water, filter obvious chlorine, avoid distilled water on its own, and match temperature to the tea.

  • Fill the kettle with fresh cold water.
  • Use filtered tap water if your tap smells clean enough after filtering.
  • Change only one thing on the next brew.
Read the water guideFix bad teaOpen timerCalculate grams

Water is most of the cup, but it is easy to blame the tea first. This checklist is a tiny diagnostic step before you buy new leaves, change the ratio, or decide a tea is bad. Pick the water symptoms you actually notice and test one fix on the next brew.

What this checklist helps with

  • Chemical smell: usually chlorine, an old filter, or water that needs to stand.
  • Muted aroma or chalky finish: often hard water or kettle scale.
  • Flat body: sometimes distilled, RO, or very low-mineral water used on its own.
  • Dull taste: old kettle water that has been heated again and again.
  • Bitterness or weakness: sometimes temperature, not the water source.

Use it with the guides

For the longer explanation, read best water for brewing tea and tap vs filtered water for tea. If the cup still tastes wrong after the water check, go to the bad-tea troubleshooting guide, then tighten the brew with the brewing timer and grams calculator.