What Is Pet Aquamation?
Aquamation — also called alkaline hydrolysis, water cremation, or bio-cremation — is a water-based process for caring for your pet's remains after they pass. It is a gentle alternative to traditional flame cremation that uses warm water and a naturally occurring alkali solution to return your companion to their essential elements.
The process was developed in the 1990s and has been used in veterinary medicine and university research settings for decades. In recent years, it has become increasingly available to pet families as a compassionate, environmentally considerate aftercare option.
How the Process Works
Aquamation uses a solution of approximately 95% water and 5% alkali (potassium hydroxide), gently heated to 200–300°F. Your pet is placed in a stainless steel chamber, and over a period of 6–20 hours — depending on your pet's size — the warm alkaline solution naturally accelerates the same process that occurs in nature, returning the body to its basic organic components.
What remains are the mineral bone fragments, which are dried, processed into a fine white powder, and returned to you. The process produces 20–40% more remains than flame cremation, because it preserves more of the bone mineral content.
The solution that remains after the process is a sterile liquid composed of salts, amino acids, and sugars — the same basic building blocks of all organic matter. It is safely processed through standard water treatment systems. Multiple municipal water authorities, including Portland, Oregon (which has allowed aquamation since 2009), have confirmed the effluent is safe for standard wastewater processing.
Is Aquamation Legal?
Pet aquamation is legal in all 50 U.S. states. There are no state-level bans or restrictions on aquamation for pets.
This is worth noting because human aquamation has a more complex legal landscape — it is legal in roughly 29 states and still being evaluated in others. Pet aquamation does not face these restrictions. If you can find a provider in your area, you can choose aquamation for your pet.
What Does Aquamation Cost?
Aquamation pricing is generally comparable to private flame cremation, with some variation by region, pet size, and provider:
- Small pets (cats, small dogs under 30 lbs): $150–$400
- Medium dogs (30–80 lbs): $250–$550
- Large dogs (80+ lbs): $400–$800
- Communal aquamation (remains not returned): pricing similar to communal flame cremation, typically $50–$200
These ranges are comparable to private flame cremation pricing in most markets. Some providers charge a modest premium for aquamation over flame cremation; others price them identically. The price difference, where one exists, is typically $50–$150.
The reason for any premium: aquamation equipment costs more than traditional cremation retorts ($180,000–$270,000 vs. approximately $130,000), and the process takes longer (6–20 hours vs. 2–3 hours), which affects throughput. As more providers adopt the technology, pricing is expected to converge further with flame cremation.
What You Receive
After aquamation, you receive your pet's remains in a container or urn of your choosing — just as you would with private flame cremation. The remains are a fine, white powder. Because aquamation preserves more bone mineral content, you will receive approximately 20–40% more remains than you would from flame cremation. Many families find this meaningful.
You can scatter the remains, keep them in an urn, divide them among family members, incorporate them into memorial jewelry or glass art, or bury them — all the same options available with flame cremation remains.
The Environmental Consideration
Many families choose aquamation because of its environmental profile. The key differences from flame cremation:
- Energy use: Aquamation uses significantly less energy than flame cremation. Industry data indicates approximately 90% less energy consumption, though this figure comes from equipment manufacturers and has not been independently verified in a peer-reviewed study. The directional claim is sound — the process operates at lower temperatures and does not require sustained combustion.
- Emissions: Flame cremation involves burning natural gas at 1,400–1,800°F and produces carbon dioxide, nitrogen oxides, and — when dental fillings are present — trace mercury emissions. Aquamation produces zero direct airborne emissions. There is no combustion and no smokestack.
- Carbon footprint: The Cremation Association of North America has reported that each flame cremation releases an average of approximately 600 pounds of CO2. Aquamation does not produce direct CO2 emissions.
- Water use: The process uses approximately 300 gallons of water per cycle — roughly equivalent to one day of household water use, according to EPA residential estimates.
It is important to note: both flame cremation and aquamation are respectful, dignified options. The environmental difference is real but should not be the sole basis for your decision. Choose what feels right for your family.
How Many Providers Are There?
Aquamation is still an emerging service. As of early 2026, there are an estimated 30–60 dedicated aquamation facilities in the United States, with a growing number of veterinary clinics partnering with aquamation providers to offer it as an option. The number of providers is increasing steadily as demand grows and equipment becomes more widely available.
This means aquamation is not yet available in every community. If there is no aquamation provider near you, a growing number of providers offer transport services — picking up your pet from your home or veterinarian and returning the remains to you after the process is complete.
Professional Standards
The Cremation Association of North America (CANA) and the International Association of Pet Cemeteries and Crematories (IAOPCC) jointly offer a Certified Pet Alkaline Hydrolysis Operator Training program. This certification covers process operations, safety standards, and professional ethics. When evaluating aquamation providers, ask whether their operators have completed this or equivalent training.
The Pet Loss Professionals Alliance (PLPA), a committee within the International Cemetery, Cremation and Funeral Association, also provides ethical guidelines and professional development for pet aftercare providers, including those offering aquamation.
Who Chooses Aquamation?
Aquamation appeals to a range of pet families, but it tends to resonate most with those who value environmental sustainability in their daily lives. Surveys of pet owners show that younger generations — millennials and Gen Z — are the most likely to consider eco-friendly options for their pets. Approximately 60% of Gen Z pet owners report that they usually consider eco-friendly options for their pets, and nearly 75% of millennial pet owners say they are willing to pay more for sustainable choices.
That said, many families choose aquamation simply because the process feels gentler — the idea of warm water rather than flame can be comforting, regardless of environmental considerations. The decision is deeply personal, and there is no wrong answer.
Questions to Ask an Aquamation Provider
When you contact an aquamation provider, consider asking:
- Is this a private aquamation? Just like with flame cremation, you want to confirm whether your pet will be the only animal in the chamber during the process.
- How long does the process take? Typical range is 6–20 hours depending on your pet's size.
- When will I receive the remains? Most providers return remains within 3–7 business days.
- Do you offer pickup and transport? Many providers will come to your home or veterinarian's office.
- Are your operators certified? Look for CANA/IAOPCC training or equivalent.
- What container options do you offer? Some providers include a standard container; others offer upgraded urns, keepsake jewelry, or memorial glass.
Finding Aquamation Near You
Search Gentle Crossings to find pet aftercare providers in your area, including those offering aquamation. If aquamation is important to you, filter by service type or call providers directly to confirm availability. The number of aquamation providers is growing — if one is not available in your community today, it may be soon.
Your companion deserves the aftercare that feels right to you. Whether you choose aquamation, flame cremation, burial, or another option, the most important thing is that the choice reflects your love for them.