The colour hue is a result of the temperature of the cremation chamber. During cremation, the body is exposed to temperatures ranging from 760 to over 980 degrees Celsius or 1,400 to 1,800 degrees Fahrenheit. Bones need to reach a temperature higher than 800 degrees Celsius (1,472 F) to produce lighter-coloured ashes.
The colour of ashes can vary
Ashes are between grey or grey-brown in colour. They are usually mid-to-light grey, but it's normal for them to be darker grey, or to have a brown tinge.
The colour of ash ranges from grey to grey-brown or from medium to light grey, although it is common for them to be a darker shade of grey or have just a hint of brown too. One thing is for sure; ashes are not black.
According to Ragland and Aerts 1991, wood ashes are brown because of the onset of pyrolysis and shrinkage at a temperature of 250ºC and turn black at a temperature above 300ºC.
Most cremation chambers will not mix the remains of your loved ones—they'll usually leave that up to the family to do. In those cases, crematories will return cremated remains in a temporary urn so you can transfer the remains into an urn of your choice.
During cremation, the body parts that do burn consist of organs, soft tissue, hair, and skin, while the water in our bodies evaporates. The body parts that do not burn are bone fragments. Teeth usually burn during cremation, but not entirely.
You don't get ash back.
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.
There is no obligation to leave ashes on the forehead for a particular period of time. Some wipe them off right away, some leave them for the day.
If you are concerned that the ashes will smell after the cremation, the answer is no. There is no odor emitted from ashes that have been properly cremated. Even over time, you shouldn't expect any particular smells to develop. If anything, certain cremation containers will simply emit a slight incense-like smell.
Can You Get DNA From Cremated Remains? Yes. DNA testing is often done on the bodies of the dead, even after they've been cremated. The immense heat of the cremation ovens breaks down the body's organic matter, leaving bone fragments and teeth behind as they don't disintegrate during the cremation process.
How long do cremated ashes last? In theory, cremated ashes can last forever. Some funeral homes have ashes from the 19th Century that are still in their urns, and archeologists have been known to discover ashes that are thousands of years old.
Here are the answers to some of the most common weird cremation questions. Do teeth burn during cremation? Teeth usually burn up during the cremation process. Tooth fragments that are not burnt up will be ground during the ash processing.
An indestructible identification disk is placed in the chamber with your loved one. The disk is approximately the size of a quarter and is made of stainless steel. It will not melt despite the intense heat of the chamber. Unique identification numbers are stamped onto the disk for future verification.
The bones become brittle and easy to grind down into “ashes” once the chemical bonds within them are weakened. Most importantly, phosphorous and calcium change color, from light to dark, and back to light, based on temperature. This process is explained more in detail below.
A person may want to keep ashes with them or have them nearby or place them in a piece of keepsake jewelry, create a memorial diamond or a parting stone. Regardless of the reason, dividing ashes allows everyone the freedom to do what they wish with their loved one's cremated remains.
Can a dog recognize another dog's ashes? Cremated ash generally does not have an odor. Although it's unlikely that any remaining pets at home would have a reaction to the presence of their lost friend and companion's ashes in an urn, expect a surviving pet to show signs of loss.
There's nothing wrong with keeping cremated remains at home – but because our beliefs about these remains are different, some people may look at it as inappropriate.
Cremation occurs at such a hot temperature all micro-organisms are destroyed, and the remaining ashes are inert. After cremation there are no public health risks associated with handling ashes.
While wood ashes are considered nontoxic, they contain alkaline material in the form of potassium carbonate and potassium hydroxide, often referred to as pearl potash and potash, respectively. These compounds are very soluble in water and react with water to release hydroxide ions which can produce a pH as high as 12.
It marks the first day of Lent in Western churches. The ashes symbolize penance and the dust from which God made people. When priests mark Christian's forehead the ashes they often say, “Repent and believe in the Gospel,” or “Remember that you are dust, and to dust you shall return.”
People walk up to the altar using the same process as Communion. The person distributing the ashes marks the recipient's forehead and says either, “Remember that we are dust and unto dust we shall return,” or “Repent and believe in the Gospel.”
The ash cross marking observers' foreheads is meant to represent mortality and penance for their sins. It is applied by a priest during a morning mass, often along with a small blessing: "Remember that you are dust and to dust you shall return." Many choose to keep it on all day.
Cremation Involves Lighting the Body on Fire
One of the most misguided cremation myths is that the body is set on fire. The cremation process uses flames to create extreme heat in a specially designed furnace. During the cremation process, the furnace (also called a retort) reaches temperatures around 1800° F.
Preparing the Body for Cremation – The cremation provider will prep the body by removing all jewelry, pacemakers, or medical devices in order to prevent melting or explosions during the cremation process. Jewelry is returned to the family and medical devices are often recycled or returned to the family.
The bones, which are the last to go, become calcified as they are exposed to the heat and begin to flake or crumble [source: Pope].