Aug 12, 2026

What is cremation, and what happens to the ashes?

Cremation is an option that more and more people are choosing when saying goodbye to a loved one. However, while many people are familiar with the general concept, there are still questions about how the process works, what happens to the ashes, and how to choose a suitable urn to hold them.

That is why we have prepared this guide, where you will find clear answers to the most frequently asked questions about cremation and cremated ashes. Plus, practical tips for selecting the right urn.

What is cremation?

It is a process that uses high temperatures to reduce a human or pet's body to bone fragments. These fragments are then carefully processed to obtain the cremated ashes, which are given to the family.

Today, cremation has become a popular option due to its flexibility, reduced need for physical space, and the possibility of keeping, scattering, or commemorating the ashes in different ways.

What happens during the cremation process?

The cremation process takes place in a specialized chamber called a crematorium. Once all necessary authorizations have been obtained, the human body or pet's body is placed in the chamber, where high temperatures break down the organic tissues.

At the end of the process, only the skeletal remains are left. These are cooled and processed until they become a uniform texture commonly known as “ashes.”

The entire procedure is carried out following strict protocols of identification and respect to ensure that the ashes delivered belong exclusively to the deceased.

What are cremation ashes made of?

Cremation ashes are not ashes in the traditional sense, contrary to what many people believe.

They are composed mainly of minerals found in bones, such as calcium and phosphates. Because of this, they have a consistency similar to coarse sand or small mineral grains.

The color may vary depending on various factors, including the person’s bone composition and the process used.

How much ash remains after cremation?

The amount of ash remaining after cremation depends primarily on the person’s size and bone structure.

Generally speaking, an adult typically produces between 3 and 7 pounds (1.4 to 3.2 kg) of cremated ashes.

However, people with a larger bone structure tend to produce a greater amount of cremated remains.

How much do cremated ashes weigh?

The weight of the ashes represents approximately 3% to 7% of the original body weight. This is a common rule of thumb used by funeral homes.

But on average, the ashes of an adult typically weigh between 4 and 6 pounds (1.8 to 2.7 kg).

This information is crucial for determining or selecting an urn with the appropriate capacity.

What do cremation ashes look like?

Cremation ashes typically have a grainy appearance and a texture similar to coarse sand. Their color generally ranges from light gray to white and various shades of beige. 

They are not usually fine or powdery like the ashes produced by burning paper or wood. Additionally, it’s worth noting that the texture may include small visible mineral particles, which is completely normal.

Does aquamation leave more ashes than traditional cremation?

Aquamation, also known as water cremation or alkaline hydrolysis, is a more recent alternative to traditional cremation.

Aquamation typically produces approximately 15% to 30% more remains than conventional cremation. This is because the process preserves certain bone minerals that are not preserved in traditional cremation.

That is why some families need a larger urn to hold all the ashes obtained through this method.

How to Choose the Right Size for an Urn

Choosing an urn and selecting the right size is one of the most important decisions when it comes to preserving ashes.

Here is a tip for calculating urn size: one cubic inch of capacity for every pound of body weight before cremation.

  • For example:

  • A person weighing 150 pounds will require an urn of at least 150 cubic inches.

  • A person weighing 200 pounds will need an urn of at least 200 cubic inches.

Something you should always keep in mind is that it’s advisable to choose an urn with a little extra space for peace of mind.

What should you do if you’re not sure how much space you need?

If you have doubts about the person’s exact weight or the capacity you should consider for the urn, opt for a standard-sized urn for adults.

Another option is to consult with the funeral home or crematorium, as they can estimate the approximate volume of ashes you will receive based on their experience.

If you are unsure or cannot determine the appropriate size, it is better to choose an urn that is slightly larger than one that is too small.

How to Place Ashes in an Urn

In most cases, the ashes are delivered in a sealed bag placed inside a temporary container.

Modern urns have an opening at the base or back to facilitate the transfer.

Before beginning this process, you should consider the following:

  • Place the urn on a stable surface, and preferably put a cloth over this surface.

  • Make sure the opening is fully accessible.

  • Handle the bag carefully to avoid spills.

  • Make sure to close the urn properly once the process is complete.

If this process is emotionally difficult for you, and if you prefer, some funeral homes can perform this task for you.

Keeping Cremation Ashes at Home

Many families find comfort in keeping the ashes of a loved one at home.

However, if you choose to keep the urn at home, it is important to consider the following:

  • A stable and secure surface.

  • Protection against accidental falls.

  • Avoid direct exposure to sunlight for long periods.

  • A quiet and meaningful space for the family.

In many cases, people create or choose small memorial spaces alongside photographs, flowers, or special mementos.

Frequently Asked Questions About Cremation Ashes

Do ashes have a smell?

The answer is no. Cremation ashes have no noticeable odor.

Can the ashes be divided among several family members?

Yes. This has become a very popular choice, as many families choose to divide the ashes using small urns or keepsake urns.

Is it safe to keep ashes at home?

Yes. Cremation ashes are stable and, when placed in a suitable urn, can be kept at home.

Can ashes be transported during travel?

Yes. However, it is always important to check the regulations for this, as they may vary depending on the country, airline, or mode of transportation used.

Can the ashes be scattered?

Yes, that is also an option. Many families choose to scatter them in meaningful places. But you must remember to always consider local laws and regulations when doing so.

Conclusion 

Choosing an urn is a deeply personal decision. It goes beyond size, material, or design. An urn is a meaningful way to honor the memory of someone special whom you want to keep close to you.

But it’s also important that, during this process, you understand what cremated remains are, how much space they require, and how to care for them, this can help you make your decision with greater peace of mind. And always keep in mind that when the time comes to choose an urn, the most important thing is to find an option that reflects your loved one’s personality, values, and memory.