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Polyester should not go in the oven with food - if you are thinking of using polyester yarn or string instead of proper kitchen twine I would advise against that. Polyester melts at somewhere around 220 to 230 C, which is a temperature easily reached in the oven. Even if the oven is set at a lower temperature, say 180 C, it will momentarily and locally get a lot warmer when the heating elements are on. Possible outcomes would be that the string softens up or melts and consequently tears. But it may also be possible that the polyester enters a chemical reaction with the food, and I don't want to predict the outcomes of that, but they could be unhealthy (never mind the taste).

Proper kitchen twine is made from cotton or linen, both natural fibres that do not melt. (The only thing that can happen to them is that they burn or char, but if your oven is so hot that it burns the cotton, then your chicken won't come out unharmed either...)

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12y ago

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