Many questions are asked about cremation, most peoples idea of what goes on behind the scenes is often arrived at through myth and mis-information. i.e Bodies being removed from coffins and then the coffins being re-used!
But i found this on a website which may answer the OP question:
How are cremated remains kept separate?
A cremator can only accept one coffin at a time and all the remains are removed from the cremator before the next cremation. An identity card is used throughout the whole process until the final disposal, thereby ensuring correct identification.
What happens to the cremated remains after cremation?
The law relating to cremation requires that cremated remains are disposed of in accordance with the written instructions of the applicant (usually the executor or nearest surviving relative). Most crematoria have a range of options which might include scattering or burying in the garden of remembrance, placing in a columbarium, interring in a small family vault or niche. Options for memorials are also available which might include plaques, beneath rose bushes, trees or shrubs and memorial benches with plaques. The simplest form of memorial is an entry inscribed in a book of remembrance. Your nearest crematorium will provide details of their facilities.
Cremated remains may also be buried in family graves that are full for coffined burials. Alternatively you may be able to purchase a new cremated remains grave in a cemetery.
There is no need to make a hurried decision with regard the final resting place of the remains with most crematoria having a facility to hold the remains until a decision is made. Should a crematorium not be contacted with a decision after a period of time has elapsed you may receive a letter asking if you are ready to go ahead. If you are not, simply tell the crematorium that you need more time (a fee may be applicable). Should a crematorium receive no reply to their letter they may legally scatter or bury the cremated remains within their grounds after giving 2 weeks written notice.
Can more than one body be cremated at a time?
No, each cremation is carried out separately. The aperture through which the coffin passes in the cremator and the cremation chamber are of dimensions that will only safely accept one coffin. However, exceptions can be made in the case of a mother and baby or small twin children, so long as the next of kin or executor has made this specific request.
Most crematoria will allow public inspection of the ‘behind the scenes’ procedures in an attempt to enlighten the public on all aspects of the cremation process.
