During the cremation process of the body and coffin, the carbon undergoes a metamorphosis.
The German law stipulates, among other things, a minimum temperature of 650°C in the main combustion chamber, in which the coffin is located. In the downstream chamber, in which the discharged gases are cleaned, a significantly higher temperature of > 850°C prevents the emission of harmful gases. During combustion, much of the carbon escapes as gaseous carbon dioxide. The weight fraction of carbon remaining in the main combustion chamber is generally between 0.5% and 2.5% of the dry incineration ash. This can be proven technologically in appropriately equipped laboratories. At the ALGORDANZA, this carbon is isolated from the ashes using wet chemical methods or pyrolysis and serves as the basis for the subsequent diamond synthesis.