How to Remove Stubborn Odors from a Silicone Pressure Cooker Sealing Ring

Published on June 2, 2026

Why Your Pressure Cooker Ring Smells (and Why Soap Fails)

If your pressure cooker makes everything taste faintly of last week's garlic chicken, you are not alone. Silicone is a highly durable and heat-resistant material, but its molecular structure is porous. When heated under pressure, the pores expand and trap food oils and volatile organic compounds. Standard dish soap only cleans the surface, leaving those trapped odors locked inside. Fortunately, you can easily neutralize these smells using basic pantry staples.

Method 1: The Vinegar and Lemon Steam Bath (Best for Light Odors)

This method uses the pressure cooker's own heat and pressure to force the cleaning agents deep into the silicone's pores.

Step 1: Pour 1 cup of water and 1 cup of plain white vinegar into the inner pot of your pressure cooker.
Step 2: Toss in 2 to 3 thick slices of a fresh lemon (or 2 tablespoons of lemon juice). Lemon contains d-limonene, a natural solvent that cuts through stubborn food oils.
Step 3: Secure the lid with the smelly sealing ring in place. Lock the valve to the "Sealing" position.
Step 4: Set the cooker to run on "High Pressure" for 3 to 5 minutes.
Step 5: Once the timer goes off, let the pressure release naturally for 10 minutes, then vent any remaining steam. Remove the ring and rinse it in cold water.

Method 2: The Oven-Bake Method (Best for Deeply Set-In Smells)

If you have cooked curry, chili, or heavy garlic dishes, the odor might be deeply embedded. High, dry heat is the ultimate weapon to release trapped volatile compounds from silicone.

Step 1: Preheat your oven to 250°F (120°C). Silicone is incredibly heat-resistant and can easily withstand temperatures up to 450°F, so this low temperature is completely safe.
Step 2: Wash the sealing ring thoroughly with dish soap to remove any surface grease, then dry it completely.
Step 3: Place the dry silicone ring directly on a clean baking sheet.
Step 4: Bake the ring for 20 to 30 minutes. As the silicone heats up, the pores expand, allowing the trapped food oils to vaporize and escape.
Step 5: Carefully remove the ring from the oven and let it cool. Give it a sniff—the odor should be completely gone.

Method 3: The Baking Soda Soak (Best for Passive Cleaning)

If you don't want to use your oven or run a pressure cycle, baking soda is an excellent alternative that absorbs odors naturally over a few hours.

Step 1: Find a shallow dish or bowl large enough to submerge the ring.
Step 2: Fill the dish with warm water and mix in 1/2 cup of baking soda until it is mostly dissolved.
Step 3: Submerge the silicone ring fully in the mixture.
Step 4: Let it soak for at least 2 hours, or ideally overnight.
Step 5: Remove the ring, scrub it gently with a non-abrasive sponge, rinse thoroughly with warm water, and dry.

Pro Tips to Prevent Future Odors

Once your ring is fresh and clean, use these habits to keep it that way:

Store the lid upside down: Never store your pressure cooker with the lid locked on. This traps moisture and concentrates residual smells. Instead, rest the lid upside down on top of the pot to allow constant airflow.
Buy a color-coded multi-pack: The most practical long-term solution is to own two rings. Use a blue or black ring strictly for savory dishes (stews, meats, garlic sauces) and a red or clear ring strictly for sweet or neutral dishes (yogurt, cheesecakes, oatmeal).