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Thinking of cardboard/paper containers, if you take normal cardboard and put water in it, it will be a very short time before it seeps through and gets soggy. T
by DoingIsLearning 4y ago
Thinking of cardboard/paper containers, if you take normal cardboard and put water in it, it will be a very short time before it seeps through and gets soggy. Take your container and do the same? If there is a significant difference it has been waterproofed.
Now specifically on coatings there are beeswax coatings and silicone coatings which judging from other food grade/medical grade applications would be fairly safe. The snag is that on a visual inspection (at least for me) I have no way of telling if a coating is just silicone or contains PFAS. So in general I would apply a cautionary principle and just stay away from them at takeout joints.
- forum_ghost 4y agoSilicone (siloxane) coatings isn't that big of a deal. It's just a different type of glass, fairly inert, fairly safe. It's also extremely unlikely that takeout joints have silicone-coated paper, as it is fairly expensive. "Parchment" paper you buy today is actually coated with Teflon-related fluoridated compounds. Just burn some of the paper, and see if the smell resembles the smell of an empty teflon pan that's overheated until it's giving off scent/smoke.