Cooking with any plastic is a dubious enterprise, because heat encourages potentially harmful plastic compounds to migrate out of the polymers and potentially into the food. But, as Andrew Turner, a biochemist at the University of Plymouth recently told me, black plastic is particularly crucial to avoid.
In 2018, Turner published one of the earliest papers positing that black plastic products were likely regularly being made from recycled electronic waste. The clue was the plastic’s concerning levels of flame retardants. In some cases, the mix of chemicals matched the profile of those commonly found in computer and television housing, many of which are treated with flame retardants to prevent them from catching fire.
Would silicone be a safe alternative?
I’m not sure but silicone is just another plastic so I don’t make any assumptions about its safety, since that’s what industry seems to rely on.
Like when they reacted to BPA being found to have issues by replacing it with other compounds that just haven’t proven to also have those issues instead of specifically looking for ones that have evidence they don’t.