Why does my water taste bitter?
A bitter taste usually comes from a high mineral content or metals, or from acidic (low-pH) water.
The likely causes
A lot of dissolved minerals — calcium, magnesium, sulfates — can read as bitter or “heavy.”
Copper from corroding pipes tastes bitter and metallic, especially in acidic water.
Acidic water tastes sour or sharp and corrodes plumbing, which then adds a metallic bitterness.
Is it dangerous?
Mineral bitterness is generally harmless. But bitterness driven by copper or corrosive low-pH water is worth confirming, since it points to metals leaching from your pipes.
How to tell what it is
A TDS meter shows overall mineral load; a pH test shows whether acidity is the driver; a metals test confirms copper. If it is worse from the hot tap or after water sits, suspect pipe corrosion.
The fix
Reverse osmosis strips the dissolved minerals and metals that cause bitterness. If low pH is the root cause, a whole-house neutralizer treats it at the source and protects your pipes.
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