In Germany there is a thermal paper that is considered food contact safe

kuerbel • today at 5:54 AM • 1 reply • view on HN

Maybe someone sells this where you live? I have found a shop in the US: https://www.ncco.com/blue4est/

Searching for blue4est was the key.

V__ • today at 1:59 PM

I just checked and there is even a seller on Amazon delivering in the U.S., so it shouldn't be too hard to get.

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