You pull a cheesecake out of the Instant Pot. It looks perfect. Smooth top, no cracks, the color you wanted. You take a bite and something is off. There’s a faint savory edge underneath the sweetness. Not strong enough to name, but it’s there. A whisper of last night’s curry. A hint of something garlicky.
You start doubting the recipe. Maybe you used the wrong cream cheese. Maybe the vanilla was old. Maybe you grabbed the salted butter by mistake. You’ll probably try the whole thing again next weekend and hope for a different result.
The recipe isn’t the problem. The problem is a part of your Instant Pot you’ve probably never looked at closely, and it’s been quietly changing the taste of everything you cook.
It’s not just you, and it’s not in your head
If you look up cheesecake recipes made in a pressure cooker, you’ll spot the same warning tucked into almost every one, from writers who don’t know each other. Preppy Kitchen tells readers that Instant Pot sealing rings hold onto whatever’s been cooked in the pot, and your cheesecake can end up with a weird savory taste if you use the same ring for everything. Kristine’s Kitchen Blog says if you don’t want the essence of Instant Pot chili or butter chicken in your cheesecake, get a second ring. Spend With Pennies puts it bluntly: for a sweet cheesecake with no hint of pot roast or chicken tacos, use a fresh ring for dessert.
The Kitchn’s editor said the same thing from her own kitchen, that even after cleaning the lid well, the ring held onto the scent of pork shoulder, burrito bowls, and stews. This isn’t one blogger complaining. It’s a whole chorus.
And the part that matters most: the maker of the Instant Pot says the same thing. Their own product pages, on every size of sealing ring they sell, carry the same line. The ring is porous. It soaks up smells. It gets stained. They tell customers to replace it every 12 to 18 months for normal wear, or as often as every 6 to 12 months if smell is the main issue.
When the company that built the pot tells you the part is porous and stains, it’s not a rumor.
Why washing it doesn’t fix it
You’ve probably tried. Most people do. You run the lid through the dishwasher, or you wash the ring by hand in hot soapy water, or you soak it in vinegar for an hour. The ring looks clean. It even smells clean when you sniff it after drying. Then you cook rice in the Instant Pot the next morning and the rice tastes vaguely spicy.
Or you switch dish soaps. Then you switch to fragrance-free soap. Then you try the vinegar and lemon trick from that video you saved. Then you leave the ring out in the sun for an afternoon because someone on Reddit swore by it. The oatmeal you make on Monday still tastes a little like Sunday’s stew. It feels like your pot is haunted.
At some point most people just give up and start using their Instant Pot for savory meals only. Cheesecakes go back to the oven. Rice pudding gets made on the stovetop. That’s a totally fair choice, but it also means you’re getting maybe half the use out of a pot you paid for. And the reason you keep hitting this wall isn’t in any of the cleaning tips you tried. It’s in what the ring itself is actually made of.
Silicone isn’t the solid, sealed wall it looks like. Think of it as a really fine sponge you can’t see with your eyes. It has tiny little spaces built into it. When the ring gets hot during pressure cooking, those spaces open up wider. The strong-smelling oils in onion, garlic, curry powder, chili, and other bold spices turn into steam easily, and that steam pushes right into the open spaces of the ring. Then the ring cools down. The spaces close back up. The smells are now trapped down inside the ring, not sitting on the surface.
That’s why soap and water do almost nothing. Soap cleans surfaces. The smell isn’t on the surface. It’s one layer down, sealed in by the same heat that cooked your dinner.
The dishwasher does help a little because the very high heat opens those tiny spaces back up and lets some of the trapped smells escape, which is why Instant Pot itself lists the ring as dishwasher-safe on the top rack. But no wash cycle pulls the deep-in smells all the way back out. If it did, Instant Pot wouldn’t be quietly telling customers to just replace the ring twice a year for smell reasons.
The fix nobody bothered to tell you
If you’ve been fighting this for months, the fix is smaller than you think, and Instant Pot literally sells the answer as a two-pack.
The company makes a color-coded 2-pack of sealing rings in red and blue, and the whole reason the product exists is written right on the product page: one ring for sweet and dairy dishes, the other for savory ones. That’s the same fix cheesecake bakers have quietly passed around for years, and it turns out the maker of the pot had the same idea from day one.
A genuine Instant Pot 2-pack runs around $8 to $14 for the standard 6-quart size (5.7 liters), often on sale for less. Other brands’ food-grade silicone 2-packs and 3-packs (some add a third color for spicy dishes) sit in the same price range on Amazon and Walmart. The pot has one job. The rings are cheap.
The full routine that actually keeps this working, not just the swap on its own:
- Buy the color-coded 2-pack. Pick one color for savory (chili, curry, pot roast, chicken tacos, anything with onion, garlic, or spice) and the other for sweet and dairy (cheesecake, custards, yogurt, oatmeal, rice pudding, plain rice, steamed eggs).
- Wash both rings after every use. Instant Pot’s own care guide says the ring is dishwasher-safe on the top rack, and the high heat clears surface smells better than washing by hand.
- Let the ring air-dry all the way before putting it back in the lid. Don’t dry it with a towel. Lint sticks to silicone and ends up in your food.
- Store the Instant Pot lid upside-down on top of the pot between uses. This one’s straight from Instant Pot’s care page and takes zero extra effort. Storing the lid closed and sealed traps whatever moisture and smell are left inside, which feeds the exact problem you’re trying to fix.
- Replace both rings every 12 to 18 months. That’s the wear window Instant Pot itself recommends. If either ring still smells strong after washing, or you see cracks, warping, or a loose fit, swap it sooner no matter how new it feels.
The savory ring will take most of the abuse. That’s its job. The sweet ring stays away from garlic and onion, so it stays clean-tasting for as long as the silicone lasts, which is why cheesecake bakers who follow this routine get years of clean desserts out of the same ring.
Sources: (1) Instant Pot 4, 5 & 6 QT Sealing Ring product page; (2) Instant Pot 8QT Sealing Ring product page; (3) Instant Pot Care & Cleaning guide; (4) Kristine’s Kitchen Blog on Instant Pot cheesecake; (5) Preppy Kitchen Instant Pot cheesecake recipe; (6) Spend With Pennies Instant Pot cheesecake; (7) The Kitchn on cleaning the Instant Pot sealing ring; (8) Oh So Spotless on why silicone traps odors.
