Silicone cookware is a kitchen workhorse. It is non-stick, dishwasher safe, affordable, and it lasts for years. It has one weakness though: it drinks up odors like a sponge.
That is why your ice trays can smell like the freezer and your favorite spatula still carries the ghost of garlic past. The trapped smell drifts into your food and greets you every time you open the cupboard. The reason is physical. Silicone is slightly porous, so cooking heat opens those pores and lets oil and odor molecules seep in, then the material cools, the pores close, and the smell is locked inside.
Do not toss your gear. Below are five ways to pull the stink back out and a few habits that keep it from settling in again. Most take less than an hour.
Key Takeaways
- Soak silicone in hot, soapy water for 20 minutes to lift surface oil and food residue.
- Bake oven-safe silicone at 350 degrees Fahrenheit for 20 minutes to force trapped odor compounds out of the pores.
- Boil items for three to five minutes to kill bacteria and deep-clean the pores.
- Use a baking soda paste followed by a vinegar soak to neutralize strong smells like garlic or freezer burn.
How To Remove Smells From Silicone
The first step is a simple deep clean. A quality grease-fighting dish soap cuts through the oily film that holds smells in place. This method works best for everyday food odors or that chemical “new product” scent fresh silicone often has.
- Time: About one hour.
- Difficulty: Easy.
What You’ll Need
Gather these supplies before you start:
- Dish soap (grease-fighting formula).
- Non-abrasive sponge.
- Microfiber cloth.
- Sink or large basin.
- Rubber gloves.
1. Fill the Sink
Fill your sink with the hottest water your tap gives and add a generous squirt of dish soap. Swish it around to work up plenty of suds.
2. Soak the Silicone
Submerge the silicone completely. Let it soak for at least 20 minutes, or up to an hour for stronger smells, so the hot water and soap can loosen the trapped oils.
3. Scrub
Scrub gently with a non-abrasive sponge. Pay attention to corners and crevices, where oils and food particles like to collect.
4. Rinse
Rinse thoroughly under hot running water until no suds remain.
5. Dry
Dry the pieces right away with a microfiber cloth. Air drying can leave water spots or let a fresh odor settle back in.
Other Ways To Get Smells Out of Silicone
If soap and water did not do it, you need something stronger. Because silicone pores open under heat, deep-set smells sit below the surface where a quick wash cannot reach. Here are four methods that get down into the material.
Note: These methods are for cookware and utensils. Do not use them on silicone sealants or caulking.
In the Dishwasher
Your dishwasher doubles as a deodorizer when you use it right. A hot cycle melts away the greasy film that holds onto smells.
- Check the label: Confirm your item is dishwasher safe. Most silicone is, but verify with the manufacturer so nothing warps.
- Load correctly: Place silicone on the top rack. The bottom rack runs hotter and sits closer to the heating element.
- Separate items: Keep sharp objects like knives away from the silicone so it does not get nicked.
- Run the cycle: Use a strong dishwasher detergent and pick a sanitizing or high-heat cycle.
In the Oven
Heat is what pulls trapped odors back out. Baking clean, oven-safe silicone at 350 degrees Fahrenheit for about 20 minutes forces the trapped odor compounds to evaporate out of the material, according to Food Republic (1). This is the most reliable fix for smelly ice trays or a garlicky baking mat.
- Preheat: Set your oven to 350 degrees Fahrenheit.
- Clean first: Wash the items with soap and water to remove any stuck-on food.
- Bake: Place the clean pieces on a baking sheet and slide them into the oven.
- Wait: Bake for 20 minutes so the trapped odor compounds can cook off.
- Sniff test: Carefully take the tray out and smell it (without singeing your nose). If any odor lingers, bake for another 10 minutes.
- Wash again: Once the smell is gone and the pieces cool, wash and dry them one last time.
Caution
Not all silicone is created equal. If your item contains plastic fillers or rubber, it can soften or melt at 350 degrees. If you are unsure, stick to a lower 250 degrees Fahrenheit to stay safe.
By Boiling the Silicone
Boiling is a quick alternative to the oven. The high heat kills bacteria and opens the pores without drying the material out. It is ideal for Instant Pot rings or bottle gaskets that will not fit on a baking sheet.
- Boil water: Fill a large pot with water and bring it to a rolling boil.
- Submerge: Lower your silicone items into the water carefully.
- Cook: Let them boil for three to five minutes. Adding a little baking soda to the water can help, since it naturally adsorbs odor molecules.
- Dry: Lift the items out with tongs and let them air dry completely.
With Vinegar and Baking Soda
Baking soda is a natural adsorbent that pulls in and neutralizes odor molecules instead of masking them, while vinegar kills bacteria and cuts grease. Together they handle the smells soap leaves behind.
- Make a paste: Mix baking soda with a little water into a thick paste.
- Apply: Rub the paste over the damp silicone. For a light smell, 15 to 20 minutes of contact is plenty, per Cleanipedia’s cleaning guidance; a strong odor can sit for a few hours, but do not leave a paste on for days, since long contact can dull the surface sheen.
- Scrub and rinse: Scrub the paste off in the sink and rinse with hot water.
- Vinegar soak: Fill a bowl with white vinegar and soak the item for 30 minutes to neutralize any leftover baking soda and tackle lingering bacteria.
- Final rinse: Rinse well and dry with a cloth.
Tips for Preventing Odors on Silicone
Prevention beats the cure. These habits keep your baking mats, cups, and trays smelling like nothing at all:
- Clean while it is warm: Silicone pores stay open while the item is hot. Washing your baking mats right after use stops oils and smells from getting trapped as the material cools and the pores close.
- Skip the abrasives: Steel wool and rough scrubbers carve micro-scratches into silicone, and bacteria and odors love to hide there. Stick to soft cloths and sponges.
- Try a lemon rub: Rub a cut lemon over the surface before rinsing. The citric acid is a natural deodorizer that cuts lingering food smells with nothing harsh.
- Use sunlight: The sun’s UV rays are germicidal, so a few hours in direct sunlight kills surface bacteria and helps break down odor-causing residue. It also lightens stains for free.
- Separate sweet and savory: Keep two sets of silicone sealing rings for your pressure cooker, one color for curries and savory dishes and another for yogurt or desserts, so flavors never cross over.
- Store it sealed: Keep silicone in airtight containers or bags so it cannot soak up ambient smells from the cupboard or freezer.
FAQs
No More Smelly Silicone
Silicone is great for modern cooking, but nobody wants ice water that tastes like lasagna. Because the material is porous, it grabs strong odors and holds them below the surface.
You do not have to live with the stink. A simple vinegar soak, a hot dishwasher cycle, or the high-heat oven method can bring your cookware back in under an hour.
Always check the manufacturer’s instructions before applying high heat, and clean spills while the item is still warm so odors never get the chance to settle in.
