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Silicone bakeware as source of human exposure to cyclic siloxanes

sciencedirect.com

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Re: Silicone bakeware as source of human exposure to cyclic siloxanes

#3
> Repeated baking shows a steady decline in migration and emissions, suggesting depletion of siloxanes in the products over time.

I wonder what the fall-off curve looks like for siloxane transfer out of the bakeware. If e.g. 70% of it comes out in the first 15 baking cycles, there could be a reasonable path to massively reducing exposure from this source. Just cook a few sacrificial recipes on new bakeware and throw them out uneaten.

Re: Silicone bakeware as source of human exposure to cyclic siloxanes

#6

> Repeated baking shows a steady decline in migration and emissions, suggesting depletion of siloxanes in the products over time. I wonder what the fall-off curve looks like for siloxane transfer out of the bakeware. If e.g. 70% of it comes out in the first 15 baking cycles, there could be a reasonable path to massively reducing exposure from this source. Just cook a few sacrificial recipes on new bakeware and throw…

This wouldn't even need to be done.

Initial wear cycles could be simulated prior to shipment.

Re: Silicone bakeware as source of human exposure to cyclic siloxanes

#7
post #2

Most parchment paper (baking paper) is silicone-coated as well, no?

PFAS coated. Many products including floss, contact lenses, tampons, weatherproof gear also.

"In February 2024, the FDA announced that substances containing PFAS used as grease-proofing agents on paper and paperboard for food contact use are no longer being sold by manufacturers into the U.S. market." [0]

[0] https://www.fda.gov/food/process-contaminants-food/authorize...

Re: Silicone bakeware as source of human exposure to cyclic siloxanes

#8
Silicones are common food additives, including use as an anti-foaming agent in frying oil. If you are trying to avoid them, you may rethink having those fries next time you are at the drive through.

They are also used almost everywhere around us... shampoos, lotions, cleaning agents, cosmetics, medical implants, electronics, lubricants, etc. It seems a few ppm improves every kind of product.

Re: Silicone bakeware as source of human exposure to cyclic siloxanes

#9

Earlier quoted context omitted.

PFAS coated. Many products including floss, contact lenses, tampons, weatherproof gear also.

"In February 2024, the FDA announced that substances containing PFAS used as grease-proofing agents on paper and paperboard for food contact use are no longer being sold by manufacturers into the U.S. market." [0] [0] https://www.fda.gov/food/process-contaminants-food/authorize...

They could be sitting on ten years of supply.

Re: Silicone bakeware as source of human exposure to cyclic siloxanes

#10
post #2

Most parchment paper (baking paper) is silicone-coated as well, no?

If you use an air fryer oven, not a regular air fryer, you no longer need parchment paper except if heating very small items. You can use aluminum foil just fine if really needed.
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