The cremation process in Texas can take between two or four hours. First, the body is placed in a large chamber, and then it is heated. The body will then begin to break down, and become ashes. After the cremation has been completed, the ashes can be collected and placed into an urn. There are many factors that can affect the time taken to cremate a body. These include the size and type of chamber used. The entire process can usually be completed in a matter of hours.