For a natural burial a body is prepared without the use of embalming chemicals or disinfectants.  Washing with soap, essential oils and warm water, and keeping the body cool is adequate preparation.  If clothing is desired, selecting items of cotton and/or other natural products is encouraged.  The body may be buried in a biodegradable coffin, casket, or shroud (fabric) of natural fibers, such as linen, silk and cotton.