In the past, some older JWs felt embalming was wrong and can be quite pushy about these concepts with newer JWs. Their reasoning is:
Among the ancient Egyptians embalming was customary. They evidently did it because of their belief that the preserved body was necessary so the persons soul could eventually be reunited with it.
But both Jacob and Joseph were embalmed in Egypt and by Egyptian physicians. So the WTS says it is acceptable for Christians today.
Of course, if also depends on the laws and customs where you live.
Some JWs feel autopsies are wrong too.
*** w87 4/1 31 Questions From Readers ***
Is
it
fitting
for
a
Christian
to
permit
an
autopsy
on
a
relative?The Bible does not directly comment on autopsy, but there are some relevant Biblical thoughts that a Christian can consider. Then a personal decision can be made in the light of such texts and the particulars of the given situation.
These are pre-1950 thinking (that they are wrong) and do not appear on the WT-CD.
This thinking goes hand in hand with the immunization stance and then sudden change.