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Author: michael.rushby

The Future of Cremation: Will Water Complement Flame?

When new technologies emerge, we often assume they must replace whatever came before.

The future of cremation may be more nuanced.

Water cremation does not necessarily have to replace flame cremation.

Instead, the two methods could eventually exist alongside one another, giving families greater choice.

Flame cremation is deeply established

Cremation is a familiar part of British funeral culture.

Existing crematoria, funeral directors, ceremonies and traditions have developed around it over many decades.

Millions of families have meaningful experiences associated with crematorium services.

There is no reason to assume that this will suddenly disappear.

Why introduce another option?

Because different families have different priorities.

Some may prefer the familiarity of flame cremation.

Others may choose burial because of religious, cultural or personal beliefs.

Some may prefer natural burial.

And others may become interested in water cremation.

Providing another choice does not diminish the existing ones.

Water rather than flame

The fundamental distinction is straightforward.

Traditional cremation uses intense heat and flame.

Water cremation uses water, temperature and alkali.

Following the water-cremation process, mineral remains can be prepared and returned to the family.

For many people, this means the practical outcome may feel familiar even though the process itself is different.

The funeral can remain personal

Choosing water cremation does not dictate what kind of funeral a family must have.

A religious service could still take place.

There could be a traditional funeral ceremony.

There could be a celebration of life.

There could be a private family gathering.

Or the committal could take place separately from the memorial.

The method used to care for the body and the way a life is remembered are two different decisions.

Environmental considerations may increase demand

One reason water cremation could become part of future funeral provision is increasing environmental awareness.

Families may increasingly ask about energy, emissions and the wider environmental impact of funeral choices.

That does not mean everyone will reach the same conclusion.

But it does mean funeral providers may need to offer better information about different options.

Crematoria themselves could evolve

The future may also involve facilities offering more than one form of cremation.

Rather than thinking purely in terms of traditional crematoria, it may become possible to imagine modern funeral facilities designed around multiple methods of committal.

The environment surrounding those facilities could evolve too.

Calm architecture, gardens, water, natural materials and spaces designed around remembrance could become increasingly important.

This is central to the thinking behind Aquatorium®.

The future is about choice

The most interesting question may therefore not be:

Will water cremation replace flame cremation?

It may be:

Should families be able to choose between them?

Aquatorium® believes they should.

The future of funeral care can respect established traditions while embracing responsible innovation.

Burial.

Flame cremation.

Natural burial.

Water cremation.

Different choices for different families.

Water cremation does not need to replace the past to become an important part of the future.

It simply needs the opportunity to become another informed, dignified choice.

Water, Not Flame.

Why Access Matters as Much as Awareness

Imagine deciding that water cremation is the right funeral choice for you.

You understand the process.

You have considered the environmental issues.

Your family knows your wishes.

But when the time comes, there is nowhere nearby offering the service.

This illustrates one of the biggest challenges facing any emerging funeral choice.

Awareness alone is not enough.

From awareness to availability

Education is the first step in introducing water cremation.

People need to know that the option exists.

But as awareness increases, the questions change.

People begin asking:

Where can I arrange water cremation?

Is there water cremation near me?

Can my funeral director arrange it?

At this stage, infrastructure becomes just as important as public awareness.

Funeral services are local

Although people research funerals online, funeral care remains fundamentally local.

Families often work with funeral directors within their community.

Transportation also becomes an important consideration when the chosen facility is some distance away.

For water cremation to become genuinely accessible, a network of appropriate facilities and funeral partners will therefore be required.

Funeral directors can extend access

Not every funeral director needs to operate a water-cremation facility.

A more practical model may involve funeral businesses working with specialist facilities.

The funeral director can continue caring for the family, arranging the ceremony and managing the practical aspects of the funeral while the water cremation itself takes place at an appropriate facility.

This type of partnership could significantly expand access.

Why a network matters

Aquatorium® is being developed around the idea that water cremation should eventually become a recognisable and accessible funeral choice.

That requires more than technology.

It requires standards, trained professionals, suitable locations, clear information and trusted partnerships.

Over time, families should be able to discover where water cremation is available and identify funeral professionals who can help them arrange it.

Registering interest can help

One of the challenges with introducing a new service is understanding where demand exists.

Registrations of interest can provide useful indications of the areas in which people want greater funeral choice.

They can also allow us to keep people informed as developments occur.

Building accessibility responsibly

Expanding availability should not mean expanding at any cost.

Facilities need to operate to appropriate technical, environmental and professional standards.

Families also need confidence that the person who has died will be treated with dignity throughout the process.

Access and standards therefore need to develop together.

Finding water cremation in the future

As water cremation becomes better understood, we expect more people to begin searching for:

“Water cremation near me.”

Aquatorium® wants to help make the answer increasingly straightforward.

If you would like to know when water cremation becomes available in your area, you can register your interest with Aquatorium®.

Together, those registrations can help demonstrate where future demand exists.

Water, Not Flame.

Water Cremation Around the World

Water cremation may sound like a completely new idea to many people in Britain.

But the technology is already part of a much wider international conversation about the future of funeral care.

Known technically as alkaline hydrolysis and also referred to as aquamation, the process has attracted attention from funeral professionals, environmental organisations, policymakers and families in different parts of the world.

Why look internationally?

New funeral practices rarely develop at exactly the same pace everywhere.

Regulations differ.

Funeral traditions differ.

Infrastructure differs.

Public attitudes differ.

Looking at international developments can nevertheless help us understand how an unfamiliar funeral method begins to become recognised.

The United States

The United States has become an important market for water cremation.

Availability and legal frameworks vary between states, so it is important not to describe the US as a single regulatory market.

However, commercial market research indicates growing activity and investment in aquamation services.

This provides useful evidence that water cremation is moving beyond purely experimental use.

Canada

Water cremation has also developed in parts of Canada.

As elsewhere, regulation and availability vary geographically.

Canadian experience contributes to the growing body of practical knowledge surrounding the operation of facilities and the way water cremation is presented to families.

Developments elsewhere

Interest in alkaline hydrolysis has extended beyond North America.

Different countries are considering the technology through their own legal, environmental, cultural and funeral-service frameworks.

This is significant because it shows that questions surrounding water cremation are not confined to one market.

What international experience can teach us

Several themes repeatedly emerge when new funeral choices are introduced.

Regulation matters.

Authorities need confidence that facilities can operate safely and appropriately.

Education matters.

Families need clear explanations.

Professional involvement matters.

Funeral directors often become the link between a new technology and the people who may choose it.

Availability matters.

A legal funeral option cannot become a practical choice until suitable facilities exist.

Britain can learn from others

The UK does not need to replicate another country’s approach exactly.

Instead, we can learn from international experience.

What questions did families ask?

How did funeral professionals respond?

How were environmental issues addressed?

What standards were introduced?

How did public understanding change?

These lessons can help inform the responsible development of water cremation in Britain.

A global conversation about funeral choice

Water cremation should not be viewed simply as a technology.

Its development is part of a broader conversation about how societies care for people after death.

Tradition will remain important.

But alongside tradition, families may increasingly expect choice.

Aquatorium® will continue following international developments and sharing credible information as the water-cremation sector evolves.

Water, Not Flame.

Water Cremation and Sustainability: Separating Evidence from Greenwashing

Water Cremation and Sustainability: Separating Evidence from Greenwashing

Water cremation is frequently described as an environmentally friendly alternative to traditional flame cremation.

That is an important claim.

It is also one that deserves careful examination.

If the funeral profession is going to talk about sustainability, environmental benefits should be supported by evidence rather than slogans.

Why cremation has an environmental impact

Traditional flame cremation requires sufficient heat to complete the cremation process.

This requires energy and produces emissions.

The overall environmental impact depends on factors including fuel, cremator efficiency, electricity use and the wider operation of the crematorium.

Burial has a different environmental profile involving land, materials, transportation and long-term land management.

There is therefore no completely impact-free funeral choice.

How is water cremation different?

Water cremation does not use combustion to reduce the body.

Instead, a controlled combination of water, alkali and temperature accelerates natural decomposition.

Because the process does not depend upon flame, its energy and atmospheric-emission profile can differ substantially from conventional cremation.

This is one of the reasons water cremation attracts environmental interest.

Be careful with percentages

You may encounter statements claiming that water cremation uses a particular percentage less energy or produces a specific reduction in carbon emissions.

Such figures can be useful, but only when the underlying comparison is understood.

Results can depend upon:

  • Equipment.
  • Electricity generation.
  • Operating temperature.
  • Facility efficiency.
  • Water treatment.
  • Transportation.
  • The type of cremation system used for comparison.

A percentage from one study should therefore not automatically be treated as universally applicable.

Mercury and atmospheric emissions

Another potential distinction is that water cremation does not rely on combustion.

This can avoid some of the atmospheric emissions associated with burning materials during flame cremation.

Again, the exact environmental comparison should be supported by appropriate technical evidence.

What about the water?

Understandably, people also ask what happens to the water used in the process.

Water cremation facilities need appropriate systems and procedures for managing the resulting liquid in accordance with relevant environmental and wastewater requirements.

This deserves transparent explanation rather than being ignored.

Avoiding greenwashing

If water cremation is to become recognised as a credible environmental alternative, providers have a responsibility to communicate carefully.

Aquatorium® believes that means:

Using evidence.

Explaining limitations.

Updating claims as new research becomes available.

Avoiding exaggerated language.

Distinguishing independent research from manufacturer claims.

A more informed environmental choice

Sustainability may become an increasingly important part of funeral planning.

Families deserve credible information that allows them to compare their options.

Water cremation has the potential to offer meaningful environmental advantages.

Our responsibility is to explain those advantages accurately.

Because building trust in a new funeral choice requires more than saying it is greener.

It requires demonstrating why.

Water, Not Flame.

Why Education Matters in the Adoption of Water Cremation

Ask someone whether they would consider water cremation and their first response may be another question:

What is water cremation?

That simple question illustrates one of the biggest challenges facing any new funeral choice.

Before people can decide whether something is right for them, they need to understand it.

What is water cremation?

Water cremation is an alternative method of caring for the body after death.

Rather than using flame, it uses a controlled combination of water, temperature and alkali.

The technical name for the process is alkaline hydrolysis.

It is also sometimes called aquamation or resomation.

Aquatorium® generally uses water cremation because it provides a straightforward description for families encountering the process for the first time.

Why unfamiliarity matters

Death is an intensely personal subject.

People naturally want reassurance about what will happen to someone they love.

When a process is unfamiliar, uncertainty can easily create misconceptions.

People may wonder what happens to the body, what happens to the water, whether remains are returned and whether a conventional funeral can still take place.

These are reasonable questions and deserve straightforward answers.

Explaining the process openly

Good public education should not avoid difficult questions.

It should explain the process respectfully.

Families should be able to understand what happens before, during and after water cremation without needing specialist scientific knowledge.

Transparency builds trust.

Environmental claims need explanation too

Sustainability is one reason people become interested in water cremation.

But environmental statements should not simply be repeated because they sound attractive.

Different studies can use different assumptions.

Equipment, energy sources and operating conditions can also influence results.

Aquatorium® believes environmental information should therefore be explained with appropriate evidence and context.

Funeral professionals need education as well

Education is not only for families.

Funeral directors, celebrants, faith organisations, local authorities and other professionals may increasingly encounter questions about water cremation.

Providing them with accurate information will be essential to building confidence.

Informed choice

Aquatorium® does not believe families should be told that one funeral choice is right for everyone.

Our aim is to help people understand their options.

For some, burial will be right.

For others, flame cremation.

And for some, water cremation may eventually become their preferred choice.

But genuine choice only exists when people understand what they are choosing.

That is why education is likely to play such an important role in the future of water cremation.

Water, Not Flame.

From Alternative to Accepted: How New Funeral Choices Become Mainstream

Funeral traditions can feel permanent.

History tells a different story.

The way societies care for people after death has continually evolved in response to religion, culture, technology, urbanisation and changing attitudes.

Even practices that are completely familiar today were once considered unusual.

Cremation was once the alternative

Flame cremation is now a familiar part of British funeral care.

That was not always the case.

Its adoption required public discussion, legislation, infrastructure and changing social attitudes.

Over time, familiarity increased.

What had once been an alternative gradually became an established choice.

More recent change

Direct cremation provides a more recent example.

Separating the cremation itself from a traditional attended funeral initially challenged established expectations.

Today, many families understand that a meaningful memorial does not necessarily have to take place at the crematorium.

That has expanded the range of choices available.

The journey towards acceptance

New funeral practices tend to move through several stages.

First comes awareness.

People discover that an alternative exists.

Then comes understanding.

They learn how it works and begin asking questions.

Next comes trust.

Regulation, professional standards, real-world experience and recommendations help make the unfamiliar feel credible.

Finally comes accessibility.

A funeral choice cannot become mainstream if people cannot actually obtain it.

Where does water cremation sit?

Water cremation is at different stages of this journey in different parts of the world.

In some places it is already available.

Elsewhere, awareness is only beginning to develop.

This makes public education particularly important.

Familiarity changes perception

Terms such as alkaline hydrolysis can initially make the process sound highly technical.

The term water cremation makes the principle easier to understand.

Instead of flame, the process uses water, temperature and alkali.

As more people encounter clear explanations, unfamiliarity can gradually decrease.

Choice is the important outcome

The success of water cremation should not be measured by whether it replaces flame cremation or burial.

A better measure is whether families are able to make an informed choice.

For some people, tradition will remain extremely important.

Others may prefer an alternative that reflects different environmental or personal priorities.

The future of funeral care could therefore contain more options rather than fewer.

Water cremation may be unfamiliar today.

But many of the funeral practices we now regard as completely normal began in exactly the same way.

Water, Not Flame.

Why Funeral Directors Will Be Important to the Future of Water Cremation

Technology alone will not determine whether water cremation becomes widely accepted.

People will.

And one of the most important groups involved will be funeral directors.

The trusted relationship with families

Funeral arrangements are made at an exceptionally difficult time.

Families need information, guidance and reassurance.

For generations, funeral directors have helped people navigate decisions surrounding burial, cremation, ceremonies, coffins, transport and memorialisation.

If water cremation becomes more widely available, families are likely to turn to those same professionals for guidance.

Explaining an unfamiliar process

The biggest initial obstacle to water cremation may simply be unfamiliarity.

The process can sound complicated when described using the technical term alkaline hydrolysis.

But the basic principle is much easier to understand.

Instead of using flame, water cremation uses water, temperature and alkali to accelerate the natural process through which the body returns to its constituent elements.

Funeral directors who can explain this sensitively and accurately can remove much of the uncertainty surrounding the process.

Providing balanced information

The role of the funeral director should not be to persuade families to choose water cremation.

It should be to explain the available choices.

That means discussing water cremation alongside burial and flame cremation and allowing families to make their own decision.

Some will prefer established traditions.

Others may be attracted to the environmental characteristics of water cremation.

Neither choice needs to be presented as inherently right or wrong.

Connecting families with facilities

Funeral directors could also become an important bridge between families and water-cremation facilities.

Not every funeral business will need its own facility.

Instead, funeral directors could arrange water cremation through specialist providers in much the same way that many already work with crematoria.

This could make water cremation accessible without requiring every funeral business to invest in equipment.

Professional standards will matter

As a new funeral choice develops, standards will be critical.

Families will need confidence that their loved one is treated with dignity throughout the process.

Clear procedures for identification, transportation, individual care, documentation and the return of mineral remains will therefore be essential.

Aquatorium® believes these standards should form part of the foundations of the emerging sector.

Preparing now

Funeral professionals do not need to wait until families begin requesting water cremation regularly.

They can start learning about it now.

Understanding the technology, terminology, environmental evidence and emerging regulatory framework will allow funeral directors to answer questions confidently.

The funeral profession has always evolved.

Water cremation could simply represent the next stage in giving families greater choice.

Water, Not Flame.

Could Water Cremation Change the Funeral Profession?

The funeral profession has continually adapted to changing social expectations.

From the growth of cremation during the twentieth century to the more recent rise of direct cremation and personalised celebrations of life, funeral services evolve as families’ expectations change.

Water cremation could represent another important development.

A new method of committal

Water cremation uses water, heat and alkali rather than flame.

For funeral professionals, this means water cremation is more than simply a different piece of equipment.

It potentially introduces a new category of funeral choice that will need to be explained and incorporated into existing arrangements.

Families will have questions

Whenever a new funeral option becomes available, funeral directors become an important source of reassurance.

Families may ask:

What exactly happens?

Can we still have a traditional funeral?

What happens to the remains?

Is water cremation environmentally preferable?

Can our faith accommodate it?

How much will it cost?

Where is it available?

Funeral professionals who understand the process will be better positioned to provide clear and balanced answers.

Funeral services need not change

One misconception is that choosing a different method of committal necessarily changes the funeral ceremony.

It does not.

A family could potentially choose water cremation while retaining many of the elements associated with a conventional funeral.

Alternatively, the committal could be separated from a memorial or celebration of life.

Water cremation changes the process used after the funeral, not necessarily the way a family says goodbye.

A commercial consideration for funeral businesses

New funeral choices can also create commercial opportunities.

Funeral businesses may eventually decide to partner with water-cremation facilities rather than investing in their own equipment.

Others may consider developing facilities themselves where regulations, demand and economics make this practical.

This could lead to new partnerships between funeral directors, facility operators and specialist providers.

Education before investment

The first priority for funeral businesses does not necessarily need to be investment.

It should be understanding.

Funeral professionals can begin learning about water cremation, monitoring regulatory developments and listening to what families are asking.

This helps the profession prepare before widespread demand emerges.

Preparing for future funeral choices

Nobody can predict exactly how quickly water cremation will develop in Britain.

But international developments suggest it deserves serious attention.

Funeral businesses that understand emerging choices early will be better prepared to respond if families begin asking for them.

Aquatorium® aims to work with funeral professionals to help develop informed, dignified and responsible water-cremation services.

Because the future of funeral care may not be about choosing between tradition and innovation.

It may be about providing both.

Water, Not Flame.

Water cremation is gaining attention in the US. Discover what growing international interest could mean for funeral choice in the UK.

For generations, funeral choices were largely determined by tradition.

Families generally chose between burial and cremation, often following established religious, cultural or family customs.

Those traditions remain extremely important, but the way people think about funerals is changing.

Today, families are increasingly looking for greater flexibility, personalisation and choice.

From tradition to personal choice

Modern funerals can be very different from those held only a generation ago.

Families may choose a traditional religious ceremony, a celebration of life, a small private gathering, a direct cremation or something entirely personal to the individual who has died.

This reflects a broader change in society.

People increasingly expect important decisions to reflect their own beliefs, values and circumstances.

Funeral care is beginning to follow the same pattern.

Environmental considerations

Environmental awareness is also becoming increasingly relevant.

People who have tried to make environmentally responsible decisions during their lives may naturally consider what happens after their death.

Questions can include:

How much energy does cremation use?

What emissions are produced?

How much land does burial require?

Are there alternatives?

This is one reason interest has developed in natural burial and water cremation.

The growth of direct cremation

The rapid growth of direct cremation has already demonstrated that funeral preferences can change.

Many families now separate the practical process of cremation from the ceremony itself.

A memorial or celebration of life can take place somewhere meaningful, at a time chosen by the family.

This illustrates an important point:

The method of committal does not have to determine the funeral.

The same principle can apply to water cremation.

Technology is creating new possibilities

Water cremation uses a carefully controlled combination of water, temperature and alkali instead of flame.

The process accelerates the natural decomposition that would otherwise occur over a much longer period.

Following the process, mineral remains are prepared and can be returned to the family in a similar way to ashes following flame cremation.

For families, this introduces another possible choice.

Information will be essential

New choices inevitably create questions.

People considering water cremation may want to understand the process, what happens to the water, what happens to the remains and how it fits with religious or personal beliefs.

Clear information is therefore essential.

The funeral profession has an important role to play in helping families understand their options without pressure or judgement.

More choice, not less tradition

The development of new funeral options does not mean traditional funerals are disappearing.

Burial and flame cremation will remain meaningful choices for millions of people.

The change is that families may increasingly expect to be offered alternatives.

Aquatorium® believes that is positive.

The future of funeral care does not need to be about replacing one tradition with another.

It can be about giving families the information and freedom to decide what feels right for them.

Water, Not Flame.

Water Cremation Is Growing in the US – What Could This Mean for the UK?

Water cremation is still unfamiliar to many people in the UK. Internationally, however, interest in this alternative to traditional flame cremation is growing.

Also known as alkaline hydrolysis or aquamation, water cremation uses water, temperature and alkali rather than flame to accelerate the natural process that occurs when a body returns to its constituent elements.

Recent market research in the United States provides an interesting indication of how the funeral sector may be changing.

A growing market for water cremation

Research published by Coherent Market Insights estimates the US aquamation market at approximately $140.5 million in 2026 and forecasts considerable growth through 2033.

Market forecasts should always be treated as projections rather than guarantees. Nevertheless, the research highlights something potentially more important than the headline numbers: growing interest in alternatives to conventional methods of cremation and burial.

This raises an important question.

Could similar changes eventually happen in the UK?

Why are families looking at alternatives?

Funeral choices have evolved considerably over recent decades.

Traditional burial remains important to many families, while flame cremation has become the most common form of committal in Britain.

But expectations surrounding funerals are continuing to change.

Families are increasingly interested in:

  • Greater choice.
  • More personalised funerals.
  • Environmental considerations.
  • Clearer information about what happens after death.
  • Alternatives to traditional funeral practices.

Water cremation potentially adds another choice.

Rather than replacing burial or flame cremation, it could sit alongside them.

Environmental awareness is influencing funeral choices

Sustainability is becoming part of many decisions people make during their lives.

It is therefore unsurprising that people are beginning to ask questions about the environmental impact of what happens after death.

These include questions about energy consumption, emissions, land use, materials and transportation.

Water cremation is frequently discussed as a potentially lower-impact alternative to flame cremation.

However, environmental comparisons need to be made carefully. Energy use and carbon impact can vary depending on technology, energy supply, transportation and how individual facilities operate.

Aquatorium® believes environmental claims should therefore be supported by credible evidence rather than marketing language alone.

Funeral professionals will be important

One of the interesting themes emerging from US market research is the importance of funeral homes in introducing families to water cremation.

This makes sense.

Most people do not spend their lives researching funeral methods. They encounter these decisions at a difficult and emotional moment.

Funeral professionals therefore have an important role in explaining the choices available.

If water cremation develops in Britain, funeral directors are likely to become one of the most important sources of information for families considering it.

Awareness comes before adoption

One of the biggest challenges facing water cremation is simply that many people have never heard of it.

Even the terminology can initially be confusing.

Water cremation may also be described as:

Alkaline hydrolysis

Aquamation

Resomation

Although these terms can be useful technically and for research, Aquatorium® generally uses water cremation because it provides families with a straightforward description of the alternative to flame cremation.

As awareness grows, education will become increasingly important.

Families will understandably want to know how the process works, what happens to the water, what happens to the mineral remains and whether they can still hold the funeral they want.

What could happen in the UK?

It would be wrong to assume that developments in America will automatically be repeated in Britain.

Funeral customs, regulations, infrastructure and consumer expectations differ between countries.

However, international developments can provide useful insight into how new funeral choices emerge.

Water cremation is moving from being an unfamiliar technology towards becoming a recognised funeral option in a growing number of places.

The question for Britain may therefore gradually change from:

“What is water cremation?”

to:

“When and where will water cremation be available?”

Creating another choice for families

Aquatorium® believes the future of funeral care should offer families greater choice.

For some people, traditional burial will remain the right decision.

For others, flame cremation will continue to be preferred.

And for some families, water cremation may offer an alternative that better reflects their personal or environmental values.

The important principle is choice supported by clear, accurate information.

As international experience develops, Aquatorium® will continue following the evidence, regulatory developments and changing attitudes towards water cremation.

Water, Not Flame.

What Happens to the Body During Water Cremation?

Understanding what happens during the water cremation process

One of the first questions people ask when they hear about water cremation is understandably very simple:

What actually happens to the body?

Water cremation — also known as alkaline hydrolysis — uses water rather than flame to care for the body after death.

Instead of exposing the body to the extremely high temperatures used in traditional cremation, water cremation uses a carefully controlled combination of water, temperature and alkaline minerals.

The process gently accelerates the natural changes that would otherwise take place over a much longer period following burial.

Understanding what happens at each stage can make an unfamiliar process much easier to understand.

Before water cremation begins

The care given to someone before water cremation is similar in many respects to the care provided before traditional cremation.

The deceased is identified and cared for according to strict procedures designed to maintain dignity, security and traceability throughout the process.

Once the necessary preparations have been completed, the person is carefully placed inside a specially designed water cremation vessel.

The vessel is then closed and the water cremation process begins.

What happens inside the vessel?

The vessel contains water together with a carefully measured alkaline solution.

The combination of:

  • Water
  • Alkaline minerals
  • Controlled temperature
  • Pressure, depending upon the technology used
  • Gentle circulation

creates the conditions required for alkaline hydrolysis to take place.

There is no flame and no combustion of the body.

Instead, the process accelerates the chemical reactions involved in natural decomposition.

What is alkaline hydrolysis?

The scientific name for water cremation is alkaline hydrolysis.

Hydrolysis describes a chemical reaction involving water.

During water cremation, the alkaline solution and water gently break down the body’s organic materials into their basic components.

These are substances naturally associated with the body’s biological composition.

The process essentially accelerates changes that would otherwise occur naturally after burial, but does so within a carefully managed and controlled environment.

What happens to the soft tissues?

During water cremation, the body’s soft tissues are gradually broken down by the alkaline hydrolysis process.

Proteins, fats and other organic materials are reduced to simpler compounds within the water.

By the end of the process, the soft tissue has been returned to its basic organic components.

This is fundamentally different from traditional cremation.

With flame cremation, organic material is broken down through intense heat and combustion.

With water cremation, it is broken down through water and alkaline hydrolysis.

This difference lies at the heart of the phrase we use at Aquatorium®:

Water, Not Flame.

What happens to the bones?

The mineral structure of the bones remains after water cremation.

When the process has finished, these mineral remains are carefully removed from the vessel.

They are then thoroughly rinsed and dried.

Once dry, the remaining bone minerals are processed into a fine powder.

These are the remains that are returned to the family.

They are commonly referred to as ashes, even though technically they have not been produced by burning.

Are the ashes different from traditional cremation ashes?

Yes, there are some differences.

Traditional cremation leaves calcified bone fragments following exposure to very high temperatures. These are subsequently processed to create the familiar cremated remains returned to families.

Water cremation also leaves the mineral component of the bones, which is dried and processed before being returned to the family.

Water cremation remains are often lighter in colour and can have a finer appearance than remains produced through flame cremation.

For the family, however, their purpose is much the same.

The ashes can be:

  • Kept in an urn.
  • Scattered somewhere meaningful.
  • Buried in a cemetery or memorial garden.
  • Incorporated into a memorial.
  • Divided between family members if desired.

Families therefore retain the same opportunity to create a meaningful memorial following water cremation.

What happens to medical implants?

Certain medical implants and artificial materials do not break down during water cremation.

Where appropriate, these can be carefully separated from the mineral remains following the process.

The way particular medical devices are handled will depend upon their type and the relevant operational and regulatory requirements.

One potential advantage of the process is that metals are not subjected to the intense temperatures associated with flame cremation.

What happens to dental fillings?

This is another important difference between flame and water cremation.

Traditional cremation involves very high temperatures. Where someone has dental amalgam fillings containing mercury, crematoria require appropriate procedures and emissions controls to minimise environmental releases.

Water cremation does not burn the body.

Because there is no combustion, the process does not produce the same type of airborne emissions associated with flame cremation.

This distinction is one of the reasons water cremation has attracted interest as an alternative approach to caring for the dead.

What happens to the water?

Understandably, this is another of the most common questions about water cremation.

The liquid remaining after alkaline hydrolysis contains water together with the dissolved organic components produced during the process.

It does not contain the mineral bone remains returned to the family.

The liquid is handled according to the environmental, wastewater and operational requirements applying to the facility.

This aspect of water cremation can initially sound unfamiliar, but wastewater treatment systems already manage organic materials from many aspects of everyday life.

As water cremation develops in Britain, clear information about this part of the process will be particularly important in helping families understand exactly what happens.

Is the process respectful?

For many people, this is ultimately more important than understanding the chemistry.

Water cremation may use modern technology, but the principles surrounding the care of the deceased remain traditional:

dignity, identification, respect and careful handling.

The deceased remains within a controlled system throughout the process.

The mineral remains are subsequently recovered, prepared and returned to the family with the same respect expected following a traditional cremation.

The technology is different.

The responsibility to care for someone with dignity is not.

Is water cremation the same as dissolving a body?

No.

Descriptions such as “dissolving the body” dramatically oversimplify what is taking place and can create an unnecessarily disturbing impression of the process.

Water cremation is a controlled form of alkaline hydrolysis.

The process breaks down organic tissue into simpler biological components while leaving the mineral structure of the bones.

Those bone minerals are subsequently prepared and returned to the family.

It is therefore more accurate to think of water cremation as accelerating a natural process using water rather than destroying the body through combustion.

How is this different from burial?

There is an interesting connection between burial and water cremation.

Following burial, natural biological and chemical processes gradually return the body’s organic materials to the environment.

This happens over a long period of time and depends upon soil, moisture, temperature and other environmental conditions.

Water cremation accelerates aspects of this natural process within a controlled environment.

Traditional cremation takes a different route, using intense heat and combustion.

In very simple terms:

Burial uses nature and time.

Traditional cremation uses flame and heat.

Water cremation uses water and alkaline hydrolysis.

All three ultimately return the body’s organic components to the natural environment, but they achieve this in very different ways.

Why understanding the process matters

Death and funerals are subjects that people understandably approach with sensitivity.

New funeral technologies can sometimes sound uncomfortable simply because they are unfamiliar.

Traditional flame cremation faced similar concerns when it was introduced into Britain. Over time, greater understanding helped it become an accepted funeral choice.

Water cremation is now beginning a similar conversation.

Clear information about what happens to the body allows people to consider the process based on facts rather than assumptions.

For some families, burial will remain the right choice.

For others, traditional cremation will continue to feel familiar and appropriate.

But some people may prefer a process that uses water rather than flame.

What matters is that families understand the choices available to them.

Water, Not Flame

Water cremation represents a fundamentally different approach to caring for someone after death.

There is no burning of the body.

Instead, water, alkaline minerals and carefully controlled conditions accelerate a process based upon natural decomposition.

The soft tissues return to their basic organic components.

The mineral bones remain.

Those minerals are carefully prepared and returned to the family as ashes.

And throughout the process, the same fundamental principle applies:

the person entrusted into our care should always be treated with dignity and respect.

At Aquatorium®, we believe families should be able to understand exactly what happens before deciding whether water cremation is right for them.

Because greater choice should also mean greater understanding.

Water, Not Flame.


Links

Water cremation — also known as alkaline hydrolysis — uses water rather than flame to care for the body after death.

If you would like to understand each stage in more detail, see our guide to how water cremation works

These are the remains that are returned to the family. You can learn more about what happens to the ashes after water cemation, including how they are prepared and the choices families have afterwards.

What Emissions Does Cremation Produce? Environmental Impact Explained

Traditional flame cremation is widely chosen by families across the UK, but many people are unaware of the energy required by traditional flame cremation has been used in the UK for generations and remains the most common alternative to burial. But as more families consider the environmental impact of the choices they make, there is growing interest in understanding what happens during cremation — including the energy it requires and the emissions it can produce.

Modern crematoria are carefully regulated, with increasingly sophisticated systems used to control emissions. Nevertheless, traditional cremation remains fundamentally a combustion process.

So, what does flame cremation release into the atmosphere, how are those emissions controlled, and how does this differ from water cremation?

How Does Traditional Cremation Work?

Traditional cremation uses intense heat and combustion to reduce the body and coffin to mineral remains.

According to current UK Government technical guidance, a modern cremator typically contains two combustion chambers: a primary chamber, where the coffin and deceased are placed, and a secondary combustion chamber through which the combustion gases pass.

Most cremators currently operating in the UK are fuelled by natural gas or liquefied petroleum gas (LPG), although a small and growing number of electric cremators are also in operation.

Government guidance requires secondary combustion temperatures of at least 800°C for most cremators and 850°C for unabated cremators, subject to specific operating conditions.

The time required varies. Government guidance indicates that gas-fired cremations can take from around 50 minutes to more than two hours, depending on factors including body size.

This need to achieve and maintain high temperatures is one of the fundamental differences between traditional flame cremation and water cremation.

What Emissions Can Traditional Cremation Produce?

Combustion inevitably creates emissions.

Current UK Government guidance regulates and monitors a number of substances associated with crematoria.

These include:

  • Carbon monoxide (CO)
  • Particulate matter
  • Hydrogen chloride (HCl)
  • Mercury
  • Nitrogen oxides (NOx)
  • Dioxins and furans

Other emissions and environmental considerations can arise from the fuel, coffin and materials involved in the cremation.

The original research material used in preparing this article also identifies carbon dioxide, sulphur dioxide, hydrogen fluoride and various organic compounds among substances potentially associated with flame cremation.

The precise emissions from an individual cremation are not identical in every case. They depend on the type and age of the cremator, fuel source, coffin and other materials, combustion conditions and whether the cremator has flue-gas treatment or other abatement technology.

Why Does Cremation Produce Carbon Emissions?

The fundamental reason is combustion.

Most UK cremators currently use natural gas or LPG. These fuels are burned to generate the temperatures necessary for cremation.

Carbon emissions can therefore arise from several sources, including:

  • fuel used by the cremator
  • electricity consumed by the facility
  • combustion of the coffin

Current Government guidance specifically requires crematoria to consider ways of reducing energy consumption and carbon emissions.

The industry itself is changing. Electric cremators are increasingly being introduced, partly because of the reducing carbon intensity of the UK’s electricity supply. There is also growing interest in alternative fuels, including biogas and hydrogen.

Traditional cremation technology may therefore become more efficient and less carbon intensive.

However, irrespective of the fuel used to heat the cremator, traditional cremation remains a process involving combustion.

What About Mercury?

Mercury has been a particular environmental concern for crematoria because of its historical use in dental amalgam fillings.

During flame cremation, mercury contained within dental amalgam can be released into the flue gases.

This is one reason why modern crematoria use flue-gas treatment systems.

According to current UK Government guidance, approximately 70% of UK cremations in 2023 were carried out in cremators fitted with flue-gas treatment systems.

These systems were originally introduced primarily to reduce mercury emissions.

The technology can also reduce:

  • particulate matter
  • acid gases
  • dioxins

The latest guidance further requires new and replacement cremators, subject to specified exemptions, to be fitted with flue-gas treatment incorporating mercury abatement.

How Are Crematorium Emissions Controlled?

Modern crematoria are regulated facilities.

Current UK technical guidance establishes operating conditions, emissions limits, monitoring requirements and Best Available Techniques (BAT) designed to minimise environmental impact.

Controlling combustion conditions is particularly important.

Government guidance identifies factors including combustion temperature, oxygen levels, residence time within the secondary combustion chamber and carbon monoxide concentrations as important controls.

Flue-gas treatment provides an additional layer of emissions control.

Typically, reagents such as sodium bicarbonate or lime and activated carbon are introduced into the flue gases. These materials can help capture acid gases, mercury and dioxins before the remaining gases are released through the crematorium stack.

Particulate matter can subsequently be captured using filtration systems.

Can All Crematorium Emissions Be Removed?

No combustion process is entirely without environmental consequences.

Flue-gas treatment can substantially reduce certain pollutants, but different emissions require different control technologies.

For example, current Government guidance states that conventional flue-gas treatment does not remove nitrogen oxides (NOx).

Additional NOx reduction technology is available and is beginning to become more widely used, although its adoption remains limited.

This distinction is important.

Modern crematoria can significantly control their emissions, but controlling pollutants after combustion is different from using a process that avoids combustion in the first place.

Are Dioxins and Furans Produced by Cremation?

Dioxins and furans are among the pollutants addressed by UK crematoria regulation.

Government Best Available Techniques guidance explains that good combustion control is important because reducing carbon monoxide also helps minimise emissions of unburnt organic compounds, including dioxins and furans.

Modern flue-gas treatment incorporating activated carbon can further reduce these emissions.

This is another reason why the environmental performance of a modern regulated crematorium should not simply be compared with much older cremation technology.

Technology and regulation continue to improve.

Is Traditional Cremation Bad for the Environment?

It is more useful to recognise that traditional cremation has an environmental impact rather than simply describing it as environmentally “good” or “bad”.

The process consumes energy and produces emissions, but modern UK crematoria are subject to environmental controls designed to minimise those impacts.

The original source material used for this article also makes an important point: compared with worldwide emissions, crematoria account for only a relatively small proportion of harmful compounds and greenhouse gases.

The environmental discussion is therefore not about suggesting that crematoria are one of society’s largest sources of pollution.

Instead, it raises a different question:

If families could choose a dignified alternative that does not require flame cremation, should that choice be available?

This is where water cremation becomes particularly interesting.

How Is Water Cremation Different?

Water cremation — also known as alkaline hydrolysis, aquamation or resomation — does not cremate the body using flame.

Instead, it uses water, alkaline minerals and carefully controlled conditions to accelerate the natural process that occurs following death.

There is no burning of the body.

And this distinction is recognised explicitly in current UK Government environmental guidance.

The Government’s 2026 crematoria technical guidance states that alkaline hydrolysis does not have emissions to air and therefore does not fall within the scope of Part B air-pollution regulation applying to traditional crematoria.

That represents a fundamental environmental difference between the two processes.

Traditional cremation seeks to control and reduce the emissions produced by combustion.

Water cremation removes the combustion stage itself.

Water, Not Flame

For generations, families in Britain have largely been presented with two choices following a death:

Burial or flame cremation.

Water cremation introduces another possibility.

This doesn’t mean traditional cremation should be portrayed negatively. Modern crematoria are highly regulated, and advances in abatement, energy efficiency, electric cremation and alternative fuels continue to reduce their environmental impact.

The question is about choice.

As our understanding of environmental impact develops, families should be able to make informed decisions about what happens to them or someone they love after death.

At Aquatorium®, we believe that includes the opportunity to choose a process based on water, not flame.

Discover Water Cremation

Water cremation offers a different approach to the end of life — one based on water rather than combustion.

Discover what happens during water cremation, how the process works, what happens to the water afterwards and how the mineral remains are returned to the family.

[Discover How Water Cremation Works →]


Sources & Further Reading

This article draws primarily upon the latest UK Government technical guidance governing crematoria, supplemented by background material on the environmental impact of traditional cremation.

Department for Environment, Food & Rural Affairs — Crematoria: Process Guidance Note (PGN 5/2 (25))
Statutory technical guidance applying across the UK covering the regulation and environmental performance of crematoria. Published December 2025 and updated July 2026.

UK Government — Crematoria: Process, Types of Fuels and Flue Gas Treatment
Explains how modern gas and electric cremators operate, the fuels used and the role of flue-gas treatment in reducing mercury, particulate matter, acid gases and dioxins.

UK Government — Crematoria: Emissions Limits, Monitoring and Other Provisions
Sets out operating controls, emissions monitoring, emission limits and requirements relating to energy consumption and carbon emissions.

UK Government — Crematoria: Best Available Techniques (BAT)
Details the techniques available to crematorium operators for controlling emissions and improving environmental performance.

UK Government — Crematoria Technical Guidance: Who It’s For and How to Use It
Explains the scope of the UK’s crematoria emissions regulations and specifically confirms that alkaline hydrolysis does not produce emissions to air and consequently falls outside the relevant Part B air-emissions regulation.

Calgary Co-operative Memorial Society — More About Cremation and its Impact on the Environment
Background material discussing energy use, combustion and potential emissions associated with traditional flame cremation.