The following submission statement was provided by /u/Gari_305:

From the Article

>Researchers have developed a way of printing edible QR codes -- a kind of barcode -- within cookies, meaning that the tag is embedded within the food itself. Crucially, the tag doesn't change the flavor or outer appearance of the cookie, and can be read using a backlight while the cookie remains intact. This new method has great commercial potential for improving food safety and traceability in an environmentally friendly way.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/yqo770/would_you_like_a_qr_code_embedded_in_that_cookie/ivp8rv5/