After death, the body starts to decay and the body needs to be preserved to increased longevity either for religious or sanitation purposes. After washing the body with disinfectants, the body undergoes cleansing where all the blood is removed and replaced with formaldehyde based chemical products. All the major organs such as eyes, jaws and even teeth are preserved and fixated in their respective places. Other internal organs are emptied of any gas or fluids and preserved. This is the entire process of embalming following which the body is put into a coffin.