Wooden coffins (or caskets) decompose, and often the weight of earth on top of the coffin, or the passage of heavy cemetery maintenance equipment over it, can cause the casket to collapse and the soil above it to settle.
If the coffin is sealed in a very wet, heavy clay ground, the body tends to last longer because the air is not getting to the deceased. If the ground is light, dry soil, decomposition is quicker. Generally speaking, a body takes 10 or 15 years to decompose to a skeleton.
If the body is buried six feet under the ground and in ordinary soil, it usually takes eight to twelve years for the body to decompose to a skeleton. This assumes the body is not placed inside a coffin, which will slow the process down, especially a solid oak coffin.
It is a common practice to cover the legs as there is swelling in the feet and shoes don't fit. As part of funeral care, the body is dressed and preserved, with the prime focus on the face. Post embalming, bodies are often placed without shoes; hence covering the legs is the way to offer a dignified funeral.
After four weeks the body has begun to liquefy, with everything breaking down. Nails and teeth fall out.
Coffin flies have that name because they are particularly talented at getting into sealed places holding decaying matter, including coffins. Given the opportunity, they will indeed lay their eggs on corpses, thus providing food for their offspring as they develop into maggots and ultimately adult flies.
For the most part, however, if a non-embalmed body was viewed one year after burial, it would already be significantly decomposed, the soft tissues gone, and only the bones and some other body parts remaining.
Unless a casket is made of metal and sealed with a material that won't degrade, bugs will eventually get inside.
In a closed casket funeral, the casket remains closed during the viewing and the funeral service. Family members and guests are not able to see the body, and some prefer this option for a variety of reasons.
(Note: If you're buried alive and breathing normally, you're likely to die from suffocation. A person can live on the air in a coffin for a little over five hours, tops. If you start hyperventilating, panicked that you've been buried alive, the oxygen will likely run out sooner.)
Putrefaction (4-10 days after death) – Autolysis occurs and gases (odor) and discoloration starts. Black putrefaction (10-20 days after death) – exposed skin turns black, bloating collapses and fluids are released from the body.
That seems to come down to what your casket is made of. Rats are prodigious chewers and will bite through anything they can. A wooden casket likely isn't going to keep rats out, at least not over the long term.
But by 50 years, the tissues will have liquefied and disappeared, leaving behind mummified skin and tendons. Eventually these too will disintegrate, and after 80 years in that coffin, your bones will crack as the soft collagen inside them deteriorates, leaving nothing but the brittle mineral frame behind.
"The water in the graves seriously affects the coffins already buried. Coffins are not watertight so when the grave fills with water it also fills the coffin, which decomposes and rots the bodies faster.
To Protect the Corpse from Being Stolen. Snatching dead bodies was common in many parts of England and Scotland in the early 1800s. Therefore, graves were always dug six feet deep to prevent body snatchers from gaining access to the buried remains.
What's really returned to you is the person's skeleton. Once you burn off all the water, soft tissue, organs, skin, hair, cremation container/casket, etc., what you're left with is bone. When complete, the bones are allowed to cool to a temperature that they can be handled and are placed into a processing machine.
By 50 years in, your tissues will have liquefied and disappeared, leaving behind mummified skin and tendons. Eventually these too will disintegrate, and after 80 years in that coffin, your bones will crack as the soft collagen inside them deteriorates, leaving nothing but the brittle mineral frame behind.
Flies, maggots, and others flock to the decaying flesh within minutes and begin to lay eggs. According to the Nature Education Knowledge Project, “Carrion flies locate dead animals through a keen sense of smell; they can detect minute traces of decomposition odor in air currents.”
Some adult flies can dig down into the soil to lay eggs on a body, especially if the wooden casket has collapsed. Most cannot go past a few centimeters or a foot of soil, but there are exceptions. One fly species in particular, Conicera tibialis, seems to be found exclusively in buried bodies.
For approximately the first 3 hours after death the body will be flaccid (soft) and warm. After about 3-8 hours is starts to stiffen, and from approximately 8-36 hours it will be stiff and cold. The body becomes stiff because of a range of chemical changes in the muscle fibres after death.
A study carried out by researchers at Australia's first 'body farm' also found that corpses can move during the decay process. And it's more than just a twitch. They found that movement occurred in all limbs after death, including in the advanced decomposition stages.
We enter heaven immediately upon our death, or our souls sleep until the second coming of Christ and the accompanying resurrection.
Yes, it is disrespectful. Always walk between the headstones and avoid standing on top of a gravesite. Be considerate of other mourners. If a funeral is taking place, stay out of the way of the procession and burial.