What do you add to the ash? September 22, 2019 20:30 Updated We add a small amount of binder to ensure the cremated remains successfully solidify into stones. Related articles Is the process different for humans and pets? How much ash is lost during the process? Will 100% of the ashes be returned to me? Is this process environmentally friendly? Can you process Alkaline Hydrolysis, water cremation, or green cremation remains? What does your logo mean?