Zojirushi Lid Seal Failure / Poor Pressure Retention

Steam escapes continuously from around the lid instead of mainly from the steam vent.

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Possible Causes

Worn or hardened lid gasket, Gasket not seated correctly, Debris on lid or pan rim, Warped lid or hinge misalignment

How to Fix / Troubleshooting

Safety first: Keep clear of escaping steam to avoid burns.

  • Clean sealing surfaces: Wipe the lid gasket and the rim of the inner pan with a damp cloth to remove food residue.
  • Inspect gasket condition: Look for cracks, flattening, or stiffness. Replace the gasket if it does not feel flexible.
  • Reseat gasket: Ensure the gasket is fully pressed into its groove all the way around.
  • Check lid closure: Close the lid and verify it latches evenly without gaps.

When to call a technician: If steam still leaks heavily with a new gasket, the lid or hinge may be bent and require professional adjustment or replacement.

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Repair Difficulty

Easy 2/5

Required Part

Lid Gasket, Lid Assembly
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