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A comment on Show HN: Printercow – Turn any thermal printer into an API endpoint. Parent comment

Re:Show HN: Printercow – Turn any thermal printer into an AP... by kube-system on Tuesday January 21, 2025 @09:49AM (#42780690)
> E.g. one type of paper claims to use Ascorbic Acid (vitamin C). No idea what else is in it of course, but it's not a BGA-analogue plasticizer.

How would you know it doesn't, if you don't know what's in it?

Regardless, my point is that many BPA-analogue containing products advertise their BPA-free status.

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Re:Show HN: Printercow – Turn any thermal printer into an AP... by heeton on Tuesday January 21, 2025 @07:17PM (#42787011)
My comment was that BPA is not used in thermal paper as a plasticizer, which that linked study was examining.
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Re:Show HN: Printercow – Turn any thermal printer into an AP... by kube-system on Tuesday January 21, 2025 @09:43PM (#42788301)
Yes, it's a used as a developer, but as is common in many cases when replacing chemicals with other chemicals -- similar chemicals have similar properties. And in fact, some BPA-free thermal paper use BPS for example.
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