Epoxy is safely used by professional in lots of commercial food applications.
Epoxy that is not mixed at exactly the right ratios will have uncombined resin or hardener. I think these could be problematic in a food application.
I'll only speak for myself, but I don't think I've ever gotten the ratios exactly right. It's good enough for my decorative applications, but I would not eat or drink from anything that I covered with epoxy.
Everyone has to make their own decision. Some people don't mind eating pesticides on vegetables.
Ed