Polaris Excessive Foaming / Boil-Over Through Valve

Water or foam spurts from the steam valve during cooking, making a mess on the countertop.

Advertisements

Possible Causes

Overfilled inner pot, Cooking very starchy or foamy foods without enough oil or water, Blocked anti-block shield redirecting foam, Worn sealing components causing unstable boiling

How to Fix / Troubleshooting

Safety first: Keep hands and face away from the steam outlet. Allow the cooker to depressurize before cleaning.

  • Reduce fill level: For foamy foods (beans, porridge, pasta), fill only to the lower max line or 1/2–2/3 of capacity.
  • Use oil or pre-rinse: Add a small amount of oil or pre-rinse starchy foods to reduce foam.
  • Clean anti-block shield: Remove and thoroughly clean the anti-block shield and steam path.
  • Check sealing ring: Replace if worn, as poor sealing can cause unstable boiling and surging.
Advertisements

Repair Difficulty

Very Easy 1/5

Required Part

Anti-Block Shield / Lid Sealing Ring
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements