Caskets made from either metal or wood will take an average of 50 or more years to decompose underground. The casket's duration depends on the type of wood used to build it and the composition of chemicals found on the grave.
However, on average, a body buried within a typical coffin usually starts to break down within a year, but takes up to a decade to fully decompose, leaving only the skeleton, Daniel Wescott, director of the Forensic Anthropology Center at Texas State University, told Live Science.
In a coffin or casket, a body will decompose over time. During the first few months underground, the body will typically undergo active decay, putrefaction, and blackening. Over several decades, the tissue and organs will continue to break down and liquefy until only the teeth remain.
Even though it's rare, the phenomena exist. Once a body is placed in a sealed casket, the gases from decomposing cannot escape anymore. As the pressure increases, the casket becomes like an overblown balloon. However, it's not going to explode like one.
The body takes between ten to fifteen years to decay to a point where you may just find bones, teeth and hair remaining in the casket. There may also be some excess tissue and clothing fibers that withstood the ten years of decay.
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.
We think this is an urban legend. We've witnessed many cremations and never heard a scream. But then again, cremation retorts aren't silent either. Now, bodies do make all kinds of gnarly noises.
The rate at which this occurs varies depending on the type of casket, the elements in the soil, and its condition. Typically, wooden coffins may take a few years to collapse after being buried, while metal ones are more resistant and can last longer.
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.
Nothing physically prevents a casket from being unlocked and reopened before it is buried in a grave. When preparing for a funeral, funeral directors will seal, lock, and reopen caskets several times. They may close and seal it shut for transport to the funeral, then open it during the service.
A hospital is allowed to keep the body of a deceased person in a hospital mortuary for up to 21 days after the date of death (section 80 of the Regulation). Hospital mortuaries are designed for the short-term storage of a limited number of bodies of persons that pass away in hospitals.
Coffins get tapered to conform to the shape of a human form. A coffin also has a removable lid while caskets have lids with hinges. Coffins are usually made out of wood and lined with cloth interiors. Unlike caskets, they do not have rails that make transportation easier.
(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.)
If the grave site is low on water content or moisture, metal caskets are known to last even longer, over five decades. Under favorable weather conditions, experts say that metal caskets may even last more than that – up to 80 years.
Coffins are not watertight so when the grave fills with water it also fills the coffin, which decomposes and rots the bodies faster.
Also around this time, the molecular structures that hold your cells together break away, so your tissues collapse into a watery mush. And in a little over a year, your cotton clothes disintegrate, as acidic body fluids and toxins break them down. Only the nylon seams and waistband survive.
As mentioned, most of the caskets are not airtight, and advanced decomposition will lead to unpleasant smells even in a closed service. However, it is especially important for funerals with open caskets, as all measures must be taken to ensure that loved ones can say their farewells before decomposition begins.
Unless expertly and expensively embalmed, a dead body will disintegrate. While remaining undisturbed in a horizontal attitude the component bones will approximate to the human form. However, a vertically buried cadaver under gravity would deposit a jumble of disarticulated bones that might be regarded as unacceptable.
The body does not feel pain during cremation because the person is no longer alive. When a person dies, their brain stops sending signals to the body. This means that the person cannot feel pain or any other sensation.
Hindus believe that the soul of the deceased stays attached to its body even after its demise, and by cremating the body, it can be set free. As a final act, a close family member forcefully strikes the burning corpse's skull with a stick as if to crack it open and release the soul.
Yes, the coffin is also cremated. A deceased person is not safely placed within a crematory unless a coffin is used.
As you can see most funeral homes can hold a body indefinitely – but there will likely be holding fees. So, if you can you should speed the process up by finding a reliable funeral home that can deal with the paperwork.
Generally speaking, a body takes 10 or 15 years to decompose to a skeleton. Some of the old Victorian graves hold families of up to eight people. As those coffins decompose, the remains will gradually sink to the bottom of the grave and merge.
Capacity of the grave
Graves can be for a maximum of three full earth burials, depending on ground conditions in the cemetery. The depth has to be determined with the first burial. In a dedicated cremation plot, designed solely for cremated remains, ten caskets can be interred.