Indigestible Materials

Paper, string, undigested plant fibers, and wood shavings (bedding) are among the cellulose-based items that may be associated with animal carcasses but are not digestible by alkaline hydrolysis. Rubber, most plastics, ceramics and stainless steel (catheters, needles, clips, and staples) also cannot be digested by alkaline hydrolysis, although silk and collagen sutures, which are protein in nature are rapidly digested. However, the indigestible materials are completely sterilized by the BioSAFE Engineering process. They can be removed from the basket of the Tissue Digester and disposed of as ordinary waste at a sanitary landfill, with appropriate treatment of any sharps.