Is there any danger of using rancid oils for soap making? (for personal use of course)
I have a bunch of oils that my family stored in the worst of conditions for a long time (in an outdoor shed that's not completely sun-proof). I would feel bad about throwing them out, especially that some were very expensive. Would it be okay to use these oils to make soap? I wouldn't sell them because I realize they would be very bad quality and will develop DOS, but otherwise, is it dangerous to use old oils? I am considering making dishwashing soaps if I can't use them on skin.
Thanks!