Aquamation for Pets: What It Is and How It Works
Aquamation — also called water cremation or alkaline hydrolysis — uses warm water and a chemical solution instead of flame to reduce a pet’s body to ash. It produces more ash than flame cremation and has a smaller environmental footprint. Not every state permits it for pets, and fewer providers offer it than traditional cremation.
How aquamation works
The process uses a combination of warm water (around 200°F), pressure, and potassium hydroxide to accelerate natural decomposition. Over 4–8 hours, soft tissue is broken down. What remains is the bone structure, processed into ash much like flame cremation. The resulting ash is white or off-white rather than grey, and about 20–30% more in volume.
Environmental considerations
Aquamation uses no fossil fuels during the process and produces no direct emissions. Energy use is lower than flame cremation. The liquid byproduct is a sterile effluent disposed of through standard wastewater systems. For families who want a lower-footprint option, the difference is meaningful.
Cost and availability
Aquamation for pets typically costs $200–$500, somewhat more than flame cremation for the same service type. As of 2026, it is legal for pets in most US states but availability remains limited — fewer providers offer it than traditional cremation. Search specifically for “alkaline hydrolysis” or “water cremation” when contacting providers.
What to ask a provider
Not all providers who advertise aquamation operate their own equipment — some use a third-party facility. Ask where the aquamation takes place and how identification is maintained. The same tag-based system used in private flame cremation should apply. Find providers near you.
Common questions
Is aquamation legal in my state?
As of 2026, aquamation for pets is legal in the majority of US states. A small number have not yet addressed the practice for animals. Contact providers in your area to confirm local availability.
How is the ash different from flame cremation?
Aquamation ash is typically white or off-white rather than grey, and there is about 20–30% more of it. The composition is similar: primarily calcium phosphate from the bones.
Is the water used in aquamation a biohazard?
No. The liquid effluent is sterile and is typically disposed of through standard municipal wastewater systems. It poses no contamination risk.
How long does aquamation take compared to flame cremation?
The aquamation process itself takes 4–8 hours, compared to 1–3 hours for flame cremation. Total turnaround from pickup to ashes returned is similar — typically 3–10 days.
Can I witness the aquamation?
Some providers allow witnessed intake. The full process takes 4–8 hours, which makes witnessing the entire procedure impractical for most families. Ask what the provider allows.
Aquamation pet cremation: 5 essential benefits at a glance
Aquamation pet cremation (also called alkaline hydrolysis or water cremation) uses heated water and a potassium hydroxide solution to return your pet’s remains. It produces the same result as flame cremation — ashes you can keep — but through a fundamentally different process.
1. Significantly lower energy use
Aquamation uses roughly 90% less energy than flame cremation, according to the American Veterinary Medical Association. No combustion means no fossil fuels burned during the process itself.
2. No air emissions
Flame cremation releases CO₂ and fine particles. Aquamation pet cremation produces no airborne emissions. For pet owners concerned about environmental footprint, this is the material difference between the two methods.
3. More remains returned
Aquamation typically returns 20–30% more bone material by weight than flame cremation. The ashes are white rather than grey. Some families find this meaningful for memorial purposes; others have no preference.
4. Same individual chain of custody
A reputable aquamation pet cremation provider follows the same individual identification protocol as private flame cremation — your pet is processed individually and the remains returned to you in an urn or container. Ask any provider to describe their chain-of-custody process before booking.
5. Available in most U.S. states
Aquamation for pets is now legal in most states; a small number still restrict or prohibit it. Costs run slightly higher than flame cremation for private service — typically $200–$500 depending on your pet’s size and location. See our full pet cremation cost guide for current pricing by state, or find a verified aquamation provider near you.