Magimix Portafilter Channeling / Overpressure

Ground coffee model overflows from the portafilter or filter basket during brewing.

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Possible Causes

Too fine grind or too much coffee, Blocked filter basket holes, Incorrect tamping, Blocked group head outlet

How to Fix / Troubleshooting

Safety first: Hot coffee can spill and burn. Stop brewing immediately if overflow occurs.

  • Reduce dose: Use the recommended amount of coffee for your Magimix filter basket and avoid overfilling.
  • Adjust grind: Use a slightly coarser grind suitable for your machine.
  • Clean filter basket: Remove the basket and soak it in hot water, then scrub the holes with a brush.
  • Clean group head: Wipe the group head and run a blank shot to clear any blockage.

If overflow persists with correct technique, the pressure valve or internal passages may be restricted and need service.

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Repair Difficulty

Easy 2/5

Required Part

Filter Basket
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