Coffee is mostly water—so water quality can quietly make or break the cup. If your coffee tastes flat, harsh, or inconsistent, water may be the reason.
Not sure which roast fits your brew method? Read our guide on how to choose the right roast for your setup.
The Short Answer
Use clean, filtered water that tastes good on its own. You don’t need lab measurements to brew better coffee at home.
Complent approach: Fix the basics first—clean taste and consistency.
Simple Fixes That Matter
- Use a basic carbon filter
- Stick with one water source
- Clean kettle and brewer regularly
Once water is dialed in, recipes become far more predictable—especially for drip and espresso.
Consistency loves balanced roasts:
Medium to medium-dark performs well across common home water profiles.
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