Is the coffin cremated with the body?

fbcaYes, the Federation of Burial and Cremation Authorities (FBCA) Code of Cremation Practice states that the coffin and the remains shall be placed in cremator. The coffin or container with the remains inside shall not be opened or otherwise disturbed, other than in exceptional circumstances, and then only with the express permission and in the presence of the Applicant for Cremation (usually The funeral director).