Breville Excessive Foaming / Vent Blockage Risk

Steam or liquid spurts out of the steam release valve violently during pressure cooking.

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Possible Causes

Cooking foamy foods above recommended fill level, Starch buildup in anti-block shield, Partially blocked steam release valve, Float valve not sealing properly

How to Fix / Troubleshooting

Safety first: Keep clear of the steam outlet to avoid burns. Do not cover the valve.

  • Cancel cooking: Turn off and unplug the cooker. Allow pressure to drop naturally if venting is unstable.
  • Check fill level and food type: Avoid filling above the max line, especially with beans, grains, or porridge. Use oil or butter to reduce foaming if recommended.
  • Clean vent components: Once cool, remove and clean the steam release valve, anti-block shield, and float valve thoroughly.
  • Use appropriate settings: For very foamy foods, use "Slow Cook" instead of high-pressure modes.
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Repair Difficulty

Very Easy 1/5

Required Part

Steam Release Valve and Anti-Block Shield
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