Somewhat topical story: A co-worker was part of a jogging group (this was in Virginia, USA), and one of their members died after a fight with cancer. He wanted his ashes to be spread in the Botanical Gardens, where they ran. But said Botanical Gardens had rules denying this (don't recall if it was hygiene, environmental, or just not wanting to open the door to piles of ash). So the group somberly gathered, took his a…
Turns out cremation doesn't result in ONLY ash You actually end up with large, intact bones after cremation. They actually take the bones and grind them up into finer particles. I've never seen cremation, ashes, but I've been told they look similar to gravel.
(1) Prep the body by cutting out anything that will harm the cremator, specifically pacemakers with potentially explosive batteries. (2) Fire. (3) Sift through the ashes/bones for any metal (hips/metal screws) (4) Macerate remaining bits into homogeneous ash.