Cosori Foamy Food / Blocked Anti-Block Shield

Liquid or foam spurting from the steam release valve during pressure release.

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Possible Causes

Cooking foamy foods (beans, grains) without enough oil or water, clogged anti-block shield, overfilled pot, rapid pressure release with starchy contents.

How to Fix / Troubleshooting

Safety first: Keep hands and face away from the steam release. Hot liquid can cause severe burns.

  • Use natural release: For foamy foods, allow pressure to drop naturally for 10–15 minutes before opening the valve.
  • Clean anti-block shield: Remove the metal shield under the steam release and clean thoroughly to ensure steam can pass freely.
  • Adjust recipes: Do not exceed half-full for beans, grains, and foamy foods. Add a spoonful of oil to reduce foaming.
  • Inspect valve: If spurting continues despite proper use, replace the Cosori steam release valve assembly.
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Repair Difficulty

Very Easy 1/5

Required Part

Anti-Block Shield
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