Ejsmond cringed when recalling the way mummified remains used to be treated.
This explains in part why the remains of King Tutankhamun, a Pharoah of the 18th dynasty buried with the famous golden mask pictured above, are in such poor shape today.
After uncovering the remains in the 1920s, the Egyptologists were so frustrated at not being able to unstick the mummy from the bottom of the coffin that they sawed him in half and chiseled his remains out.
Victorian Egyptologists would host public unwrapping parties that were thought to be the height of sophistication.
They were disastrous for the remains, exposing them to air and humidity that can do irreparable damage.
Some royal mummies were unveiled by running a knife straight from their head to their toes, with little care.
"It took them like 15 minutes or 10 minutes to unwrap a mummy fully," he said.
Scientists at the time did not keep precise records, and a lot of valuable information has been lost over time.
"CT scanning and X-rays are the basic ways of searching mummies nowadays because you cannot unwrap mummies in museums," Ejsmond said.