How Does Pet Cremation Work? A Step-by-Step Guide

Pet cremation uses high heat (flame cremation) or warm water and alkali (aquamation) to gently reduce your pet's body to bone, which is then processed into the fine, sand-like ashes you receive back. The entire process is handled with care, identification tracking, and — at reputable providers — documentation at every stage.

If you're reading this, you're probably trying to understand what actually happens after you hand your pet over. That's a completely reasonable thing to want to know. This guide walks through the process honestly and clearly — without being graphic — so you know what to expect.

Step 1: Making Arrangements

After your pet passes — whether at home, at the vet, or at an emergency hospital — you or your vet contacts a cremation provider to arrange aftercare.

You'll need to make a few decisions:

Type of cremation. There are three types offered in the GTHA, and the choice determines whether you receive ashes back:

• Private cremation: your pet is the only animal in the cremation chamber. Ashes are returned to you and are guaranteed to be your pet's alone.
• Individual (partitioned) cremation: multiple pets share the chamber but are separated by physical dividers. Ashes are returned, but there is a possibility of incidental mixing between pets. Gateway Pet Memorial, Ontario's largest cremation network, defines their individual cremation as placing pets in the chamber "separated from the other pets with partitions" — meaning multiple pets share the same space during the same cycle.
• Communal cremation: multiple pets are cremated together without separation. No ashes are returned. Remains are respectfully scattered.

For a detailed comparison of these three types and what they cost, see our [guide to private vs. individual vs. communal cremation].

Keepsakes. Most providers offer optional memorial items — ink or clay paw prints, fur or whisker clippings, upgraded urns, memorial cards. Anything that involves your pet's body (paw prints, fur clippings) needs to be arranged before cremation. It can't be done after.

Urn selection. Private and individual cremation include a basic urn or container. Upgraded options (wood, ceramic, engraved, scatter tubes) are usually available at additional cost.

At Florence, you can make all of these decisions online — enter your pet's details, choose your cremation type, select any add-ons, sign the authorization, and pay — without needing to call anyone. If you'd rather speak to a person, that's available too.

Step 2: Pickup and Transport

Once arrangements are made, your pet is either picked up by the cremation provider or brought to the facility by you.

Pickup from home, vet, or emergency hospital is the most common option. The cremation provider sends a team member to collect your pet, typically in a dedicated vehicle. Your pet is handled gently and with respect — this is someone's job every day, and the good providers treat it that way.

Drop-off is also an option at some providers if you prefer to bring your pet yourself.

At Florence, pickup is included in every cremation — private or communal — from anywhere in the GTHA. No distance surcharges, no extra fees. Pickup is available 8 AM to 9 PM, seven days a week.

Step 3: Identification and Chain of Custody

This is the step most people don't know to ask about — and it's one of the most important.

When your pet arrives at the cremation facility, they're assigned a unique identification tag — typically a metal tag or barcode — that stays with them throughout the entire process: during holding, during cremation, and during ashes processing. This tag is how the facility ensures that the ashes returned to you are your pet's.

At larger facilities that handle dozens of pets per day, this tracking system is what prevents errors. It's the difference between a promise ("we'll make sure you get the right ashes") and a verifiable process ("here's the documented chain of custody connecting your pet to these ashes").

Not all providers offer chain-of-custody tracking. It's worth asking about — especially if you're choosing private cremation specifically because the certainty of receiving your pet's ashes matters to you.

At Florence, every pet receives a unique chain-of-custody ID at pickup. That ID follows your pet through every stage, and it's documented on the cremation certificate you receive with your ashes. You also receive automated text updates at each stage — pickup confirmed, arrival at facility, cremation complete, ashes ready — so you're never left wondering what's happening.

Step 4: Holding Before Cremation

Your pet is stored in a clean, refrigerated holding area until their cremation cycle. This is standard practice — cremation doesn't always happen the same day as pickup, especially for private cremation where each pet requires a dedicated chamber cycle.

Pets are logged and tracked during holding, with their ID tag visible. The holding period is typically a few days, depending on the facility's schedule.

Step 5: The Cremation Process

There are two methods used in the GTHA: flame cremation and aquamation.

Flame Cremation

This is the most common method. Here's what happens:

The chamber. A pet cremation unit (called a retort) is a heavy, insulated metal chamber with gas burners and airflow controls. It looks industrial from the outside — this isn't a ceremonial space; it's purpose-built equipment designed for controlled, complete cremation.

The process. Your pet is placed inside the chamber, typically on a tray. For private cremation, they're the only pet in the chamber. For partitioned cremation, multiple pets are placed on separate trays with dividers between them. For communal, multiple pets are placed together.

The chamber is sealed and heated to approximately 1,400–1,800°F (760–980°C). Over the course of 30 minutes to a few hours — depending on your pet's size — the combination of heat and airflow reduces all soft tissue, leaving behind dry bone fragments and mineral residue.

Any non-combustible items (metal ID tags, surgical implants like pins or plates) remain in the chamber and are separated out afterward.

What's left. At the end of the cycle, what remains in the chamber is clean, dry bone. This is not ash in the way most people imagine — it's bone fragments that will be processed into the fine powder you receive.

Aquamation (Water Cremation)

Aquamation — also called alkaline hydrolysis — is an alternative offered by some GTHA providers, including Tails Farewell and Heart With Wings. It uses water instead of fire.

The vessel. Your pet is placed in a sealed, stainless steel pressure vessel.

The process. The vessel is filled with approximately 95% water and 5% alkali solution (potassium hydroxide or sodium hydroxide). It's heated to around 300–320°F (150–160°C) under gentle pressure — enough to keep the water from boiling while allowing the chemical process to work.

Over 6–8 hours for small pets or 12–20 hours for large dogs, the combination of warm water, alkali, and time breaks down soft tissue at the molecular level. It's essentially the same process that occurs naturally in soil over years, but controlled and accelerated.

What's left. Clean, softened bone — similar to what remains after flame cremation, but often lighter in colour because there was no burning. The liquid that's drained from the vessel contains amino acids, salts, and other organic molecules. It's sterile and pathogen-free.

Aquamation is marketed as a more environmentally friendly option (lower energy use, no direct emissions). The ashes you receive are processed in the same way as flame cremation ashes.

Step 6: Processing the Ashes

Regardless of the cremation method, the bone fragments that remain are not yet in the form you'd recognize as "ashes."

The bone is placed into a cremulator — a machine that uses mechanical action (rotating blades or a ball mill) to grind the fragments into a fine, uniform powder. This is what you receive: a sand-like material that's primarily calcium phosphate, completely safe and inert.

The amount of ash varies by your pet's size. A cat might produce a cup or two. A large dog might produce several cups. A hamster might produce a tablespoon.

Step 7: Packaging and Return

For private or individual cremation, the processed ashes are:

• Placed into your chosen urn or a basic container
• Labeled with your pet's name, ID number, and date of cremation
• Accompanied by a cremation certificate

For communal cremation, the combined ashes from that cycle are respectfully scattered at a designated location — a pet cemetery, memorial garden, or natural area, depending on the provider.

Turnaround time varies. Most GTHA providers return ashes within 7–14 business days. At Florence, standard turnaround is 7–10 business days, with rush service (24–48 hours) available for +$100.

What the Ashes Look Like

This is one of the most common questions people have after receiving ashes for the first time. Pet cremation ashes are a fine, pale grey to off-white powder with a sand-like or slightly gritty texture. They don't look like fireplace ash — they're denser and more uniform.

The colour and texture can vary slightly depending on the cremation method (flame vs. aquamation) and your pet's size. This is normal.

Ashes are completely safe to handle, touch, and store. They're inert calcium and phosphate minerals — the same minerals that made up your pet's bones.

How to Know the Ashes Are Really Your Pet's

This is the question underneath everything else — and it's the reason most people choose private cremation.

The honest answer: it depends entirely on the provider's process. Here's what to look for:

True private cremation. Your pet was the only animal in the chamber. This eliminates any possibility of mixing with other pets' remains.

Chain-of-custody tracking. Your pet was assigned a unique ID at pickup, and that ID followed them through every stage — holding, cremation, processing, packaging. The ID appears on your cremation certificate.

Documentation. You received a certificate that includes your pet's name, species, weight, date of cremation, type of cremation, and a unique identifier that matches the tracking tag used throughout the process.

If a provider can't explain their tracking process clearly, or if they seem uncomfortable with the question, that's worth noting.

At Florence, we use chain-of-custody tracking from the moment we pick up your pet. Your pet's unique ID follows them through every step, and it's documented on the cremation certificate you receive. Combined with true private cremation — one pet, one chamber — it's how we make sure the ashes you receive are your pet's and only your pet's.

Frequently Asked Questions

Is pet cremation the same as human cremation? The process is very similar — both use the same basic technology (high-temperature chambers for flame cremation, alkaline hydrolysis for aquamation) and produce the same result (processed bone fragments). The main difference is that pet cremation in Ontario is not regulated to the same degree as human cremation. There's no provincial body standardizing terminology or overseeing operations, which is why it's important to ask your provider about their identification and tracking process.

Does my pet feel anything during cremation? No. Cremation occurs after death. Your pet is not alive during any part of the process.

Can I watch or be present during the cremation? Some providers offer witnessed cremation or private viewing. This is less common in the GTHA than in some other markets, but providers like In Good Hands do offer it. Ask your provider directly if this is important to you.

What happens to metal implants (pins, plates, microchips)? Metal items don't combust during cremation. They remain in the chamber after the cycle and are separated out by staff before the bone is processed. They're typically recycled or disposed of responsibly.

How much ash will I get back? It depends on your pet's size. A cat typically produces 1–2 cups of ash. A medium dog produces 2–4 cups. A large dog may produce more. A hamster or small bird may produce just a tablespoon. The urn provided is sized to match your pet.

What's the difference between flame cremation and aquamation? Both produce the same end result — processed bone ash returned to you. Flame cremation uses high heat (1,400–1,800°F) and takes 30 minutes to a few hours. Aquamation uses warm water and alkali (300–320°F) and takes 6–20 hours depending on pet size. Aquamation is marketed as more environmentally friendly due to lower energy use and no direct emissions. The ashes from aquamation tend to be slightly lighter in colour.