I wonder how it’s possible that some people are still perfectly well conserved in their graves without being mummificated.

thanks to the booze^^

They are put in kegs of pickle juice for 4 month. Then they are Planted.

We had a stray cat get in the basement and die while laying on a broom. It was mummified when we found it. It was light but in the perfect shape of a cat.

Surrounding temperature, climate,
and environment, can play a major
role in how corpses decompose.

Maybe because they're good people or people close to God, that's what I heard.

Strange?
I don't dig up graves and look at corpses?
Ewww!

Here at sea level near the beach they bury most in crypts above ground.
Mainly because of the water table and they don't want dead bodies floating around during or right after a heavy rain.

I have watched a few shows that examine decay of things (including dead mice) and most decay happens from microbes breaking down the fibers.
I suppose if the casket were properly sealed and fairly sterile it could slow the decay process but people also have microbes inside them.

There was a traveling show that featured people that had been "plasticized" and that was interesting. I didn't go but I have seen pictures and videos of it. "Dip me in plastic with an erection and flipping a double bird and call me a coat rack"

Many of our modern burial preparations are in place to make sure dead are dead. Before embalming was common, people were buried alive.