Gaggia Over-Extraction / Excessive Brew Temperature

Coffee tastes burnt or too bitter

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Possible Causes

Grind too fine, Coffee dose too high, Brew temperature set too high, Stale or dark-roast beans, Limescale affecting temperature control

How to Fix / Troubleshooting

Adjustments:

  • Grind setting: Adjust the grinder one or two steps coarser while it is running.
  • Strength: Reduce the coffee strength/dose setting.
  • Temperature: If your Gaggia model allows, lower the brew temperature setting in the menu.

Maintenance:

  • Descale the machine to ensure accurate temperature control.
  • Use fresh, medium roast beans instead of very dark roasts, which can taste burnt more easily.

If the taste issue persists, the temperature sensor or control algorithm may be faulty and should be checked by a service center.

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Repair Difficulty

Very Easy 1/5
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