Bone Glue for Bookbinding?
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Question
Hello Rabbi, When binding a book in a hard cover, the first and last pages are glued to the cover so that the pages are attached to the cover. I saw in stores that 'bone glue' is sold for this purpose, apparently it is stronger and more suitable for this. The question is whether there is any concern about kashrut? Prohibition of benefit? Thank you very much!
Answer
Shalom and blessings
Bone glue is made from bones and other animal remnants, and it is not kosher.
There is no problem using this glue. However, of course, it is forbidden to eat it.