If your sealing ring is getting stinky, steam it with vinegar

Your Instant Pot's silicone sealing ring is slightly porous and has a tendency to retain the flavors of the food you cook in the pot. The scent shouldn't accumulate if you wash it right away after each usage, but if you've been ignoring your ring, you might need to give it a thorough cleaning. Fortunately, you can remove the stench from your sealing ring and restore its original scent by using the steam feature of your Instant Pot.

Your ring may be steam cleaned quickly, easily, and affordably. If you don't like the vinegar scent, you may substitute water and a lemon peel for the white vinegar while filling your pot. Press the "steam" button after sealing the lid with the problematic silicone ring. After two minutes of cooking, remove the seal and wipe the ring with water. The aroma from the Instant Pot pot roast dish from last week ought to be entirely gone. According to the Food Network, using two distinct sealing rings can prevent flavor contamination if you use your Instant Pot to cook both sweet and savory meals.