What Is Aquamation
Aquamation is a water-based method of body disposition that has grown in availability across the United States over the past decade. Unlike traditional burial or flame cremation, aquamation uses alkaline hydrolysis—a chemical and heat process involving water, alkali, and gentle agitation—to reduce a body to bone fragments and a sterile liquid byproduct. It produces the same end result as cremation: cremains that can be scattered, buried, or kept by the family. The process is legal in a growing number of U.S. states, though availability and regulation still vary significantly by region.
This guide explains how aquamation works, where it is currently available in the United States, what it typically costs, and how it compares to other disposition methods. The information is national in scope and designed to help you understand your options regardless of where you live.
How Aquamation Works
Aquamation begins when a body is placed in a specialized chamber filled with a solution of water and potassium hydroxide or sodium hydroxide. The chamber is then heated to approximately 200 degrees Fahrenheit. Over a period of 4 to 8 hours, gentle water circulation and heat break down organic tissue. The result is bone fragments similar in appearance to those produced by flame cremation.
The liquid byproduct—sometimes called effluent—contains amino acids, peptides, salts, and sugars. Water treatment facilities can safely process this liquid, and it is typically returned to the municipal wastewater system or treated on-site before disposal. The bone fragments are dried and processed into a fine ash, which is returned to the family in an urn, just as with traditional cremation.
The entire process is faster and uses lower temperatures than flame cremation. It also produces no direct carbon emissions from combustion, which appeals to people seeking environmentally gentler disposition methods. However, the overall environmental footprint—including facility energy use and water treatment—is still being studied and compared directly to other methods.
Legal Availability in the United States
Aquamation is not yet legal in all 50 states. As of the most recent updates, it is permitted in a patchwork of states across the country. States in the Northeast, West, and parts of the Midwest have been earlier adopters, while some Southern and Mountain states are still in the process of legalizing or regulating the practice.
States that currently permit aquamation include Colorado, Vermont, California, New York, Florida, Georgia, and others, though this list continues to evolve. Some states have passed legislation but implementation is pending. Others are considering bills or have not yet addressed aquamation in their funeral and disposition laws.
Because legal status can change, it is important to verify current regulations in your state before planning or discussing aquamation as an option. Your state’s funeral licensing board or cemetery board website typically maintains up-to-date information on approved disposition methods. If you live in a state where aquamation is not yet legal, it may become available in the coming years as more states adopt or amend their regulations.
Cost and Pricing
Aquamation costs vary by facility, location, and the specific services bundled with the process. Typical pricing ranges from $2,000 to $4,000 across the United States, though some facilities charge at the lower or higher end depending on local demand, facility overhead, and what is included.
In most cases, aquamation costs less than a traditional full-service funeral with viewing and ceremony, but may be comparable to or slightly more than direct cremation in the same area. Cost also depends on whether you use a funeral home as an intermediary or work directly with a crematory or aquamation facility.
For detailed regional and state-level cost comparisons, see our guide on average funeral costs by region and burial vs. cremation cost drivers. These resources break down typical pricing variations across different parts of the country and explain what factors influence the final bill.
How Aquamation Compares to Other Disposition Methods
Aquamation vs. Flame Cremation
Both aquamation and flame cremation produce cremains and cost less than traditional burial with a viewing. Flame cremation uses heat around 1,500 degrees Fahrenheit and requires about 2 to 3 hours. Aquamation uses lower heat and takes 4 to 8 hours. Many people view aquamation as more gentle or less intense, though both methods completely reduce the body to bone fragments. Flame cremation is far more widely available nationwide, while aquamation remains limited to specific states. If environmental impact is a priority, aquamation may appeal more, though the comparison depends on your local energy sources and water treatment practices.
Aquamation vs. Burial
Traditional burial and aquamation serve different purposes and family preferences. Burial creates a grave site that can be visited and maintains the body’s physical form in the ground. Aquamation produces cremains and does not involve a grave. Burial typically costs more overall when a casket, vault, plot, and grave opening are included, though basic costs can vary widely by region and cemetery. See green burial vs. traditional burial for more on how burial options compare. For a direct cost comparison, burial vs. cremation cost drivers provides detailed breakdowns.
Who Chooses Aquamation
Aquamation appeals to people for different reasons. Some choose it for environmental reasons, believing water-based alkaline hydrolysis is a gentler alternative to flame cremation. Others select it because it is available and costs less than a full funeral or traditional burial. Some family members prefer aquamation because they view it as a more natural chemical process than high-heat cremation. Others simply appreciate that the option exists and want to explore alternatives in states where it is legal.
As of now, aquamation accounts for a small fraction of all dispositions in the United States, but interest is growing as more states legalize it and more funeral homes and crematories add the service.
Next Steps and Practical Considerations
If you are exploring aquamation as an option, confirm first that it is legal where you live. Contact your state funeral licensing board or the funeral establishment or crematory you are considering to ask about their aquamation services.
Ask what is included in the quoted price: Does it include the aquamation process only, or does it also include a basic service fee, the urn for cremains, a certified death certificate, or other items? Are there separate charges if you work through a funeral home versus a crematory directly?
If you are comparing options across methods, review our guides on funeral costs in specific states and average funeral costs by region to understand typical pricing in your area for burial, cremation, and other services.
Frequently Asked Questions
Is aquamation legal everywhere in the United States?
No. Aquamation is legal in a growing number of states but not all 50. Availability varies by state, with some states in the Northeast, West, and parts of the Midwest currently permitting the practice. Southern and Mountain states have slower adoption rates, though this is changing. You must verify with your state’s funeral licensing board or your chosen facility to confirm legality and availability where you live.
How long does aquamation take?
The aquamation process itself takes between 4 and 8 hours, depending on the body and the facility. This is longer than flame cremation but can be offset by the fact that many facilities operate aquamation chambers continuously. The total timeline from transport to return of cremains typically follows the same schedule as cremation—usually 5 to 7 business days, though this varies by funeral home or crematory practices and any required waiting periods in your state.
Are the cremains from aquamation the same as from flame cremation?
The end product is very similar: a fine ash and bone fragments that look and feel like cremains from flame cremation. Both methods reduce the body to mineral remains that can be scattered, buried, or kept in an urn. The chemical pathway is different (water-based alkaline hydrolysis versus high heat), but families typically cannot visually distinguish between the two final products. Both can be handled the same way for memorialization, scattering, or burial.
Summary
Aquamation is a water-based alternative to flame cremation that is becoming legal in more U.S. states each year. It produces cremains like traditional cremation and often costs somewhat less or is comparable in price. Whether aquamation is a good fit depends on your location, values, and budget.
If you are comparing options, use the resources on this page to see typical cost factors and next steps. We do not place funeral arrangements for you, but we aim to make numbers and choices easier to read.