Why not do bone broth? It only takes 3 hrs. in the pressure cooker. I put mine in with chicken parts, carrots, onion, celery. If I want to use the meat off the bones, I cook for 1 hr., pull the bones out and remove the meat, then put the bones back in the cooker for 2 more hrs. After that period, I strain the liquid and that's it--it's wonderfully healthy and would be great for a patient.