Tupperware Silicone is made with 100% Silicone. This means no toxic additives sandwiched between layers of silicone like many silicone baking containers you find in stores.
How do you know if your bakeware is made from 100% silicone? Simply fold or stretch it slightly and if you see a white tinge, you know it is not. Try it with our silicone and you’ll see no white fillers.
Silicone is porous, it absorbs fats which is why it stays sticky after use in the oven. This is also why silicone is such a joy to bake with, as it sweats and releases oils back into food. You should always allow food that has been baked in to cool before releasing, so it releases nicely.
Because silicone holds oils, if those oils have any smell residue such as anything burned (e.g. those cupcake edges due to extra sugary to toppings), then these odors can be left in your bakeware as residue. The silicone will soak any cooking odors back in with the oils.
Don’t fret, you haven’t ruined your good silicone, the good news is, you can host the reset button and draw out the odor with this easy baking soda trick!
How to remove odours from silicone bakeware
Sprinkle a light coating of baking soda (bicarb soda) in or on to dry silicone.
Preheat oven and place silicone in the oven at 180 degrees for 20 minutes.
The baking soda will draw out any unwanted smells and oils from burned edges or anything else with a strong residue.
Remove from oven, allow to cool and tip out the baking soda. You will notice any residue will have coloured the baking soda or created “flakes”.
Rinse and you are ready to go.