nor education 10 min read

By TerraCare

What Happens During Terramation? A Detailed Walkthrough for Families (colloquially referred to as human composting)

Choosing how a loved one’s remains will be cared for is one of the most meaningful decisions a family makes. If you are considering terramation—also known as natural organic reduction (NOR)—it is completely natural to want to know exactly what happens, from the moment your loved one arrives at the facility to the day you receive the soil back. This article walks through each stage in detail so you can feel informed and at ease with what you are choosing.

During terramation, the body is gently placed in a specially designed vessel, surrounded by organic materials including wood chips, straw, and wildflowers. Over the course of several weeks to a few months, naturally occurring beneficial microbes transform the body into nutrient-rich soil. Families receive approximately 1/2 cubic yard of Regenerative Living Soil™ that they can use to plant, scatter, or return to the earth in a way that is meaningful to them.

What exactly happens during the terramation process from arrival to soil return?

During terramation, the body arrives at the NOR facility with full identification documentation maintained throughout. After any farewell gathering, it is placed in a vessel surrounded by wood chips, straw, alfalfa, and wildflowers. Over 60–90 days, naturally occurring microbes transform the body into soil — with temperatures rising naturally to pathogen-reduction levels. Bone fragments are screened, processed, and returned to the soil. Families then receive approximately one-half cubic yard of Regenerative Living Soil.

  • Every person goes through the NOR process with full chain-of-custody identification documentation maintained from arrival through soil return — families can be certain the soil they receive is their loved one's.
  • Wood chips provide carbon and airflow, straw and alfalfa provide nitrogen — together they create the carbon-to-nitrogen ratio that supports efficient microbial transformation without any synthetic chemicals.
  • Microbial activity generates internal vessel temperatures that meet or exceed public health pathogen-reduction standards, making the process both biologically complete and hygienically safe.
  • Bone fragments that don't fully break down during the primary phase are separated, processed, and returned to the soil mixture — families receive the complete transformed remains, not a portion.
  • Families can hold a viewing, ceremony, or farewell gathering before the process begins, and many providers accommodate personal items — flowers, herbs, letters — placed into the vessel with their loved one.

For a complete overview of terramation and how it compares to other options, visit our complete guide to terramation and natural organic reduction.

Arrival and Care at the Facility

When a loved one has died, the NOR provider arranges for their respectful transfer—from a hospital, hospice facility, or home—to the terramation facility. This is handled with exactly the same care and professionalism you would expect from any licensed funeral service.

One of the first things providers do is establish and maintain identification documentation. Every person who goes through the NOR process is individually tracked, so families can be confident that the soil they receive is genuinely their loved one’s. This chain of custody is required by law in all states where NOR is legal.

If a family has arranged a viewing, a visitation, or any kind of farewell gathering, that takes place at this stage—before the terramation process begins. Many providers have dedicated spaces where families can gather, hold a ceremony, or simply spend time with their loved one. Some families choose an intimate moment at the facility; others have held a larger memorial service elsewhere and arrive at this point ready to proceed. Terramation is compatible with a wide range of memorial traditions.

The Vessel: What It Is and Why It Works

Once any family time has taken place, the body is gently prepared and placed in a vessel—a specially designed chamber built to create the precise environment that makes natural transformation possible.

The vessel is where the process happens, and its design is intentional. It is constructed to:

  • Maintain warmth — a warm internal environment encourages microbial activity, the same way a well-built compost system generates its own heat
  • Allow oxygen to flow — consistent aeration throughout the vessel ensures the beneficial microbes have what they need to do their work efficiently and safely
  • Contain and protect — the vessel keeps the organic materials in close contact with the body and prevents anything from escaping the managed environment

Some providers use a vessel for individual use; others use larger systems with multiple individually managed chambers. The Chrysalis™ vessel, used by certain NOR providers, is one example of an individual-scale design built specifically for this process. Whatever design a provider uses, the governing principle is the same: create a stable, warm, oxygen-rich environment where biology can proceed naturally and completely.

If you are curious about how this process compares to the more basic overview, our article on the terramation process explained covers the fundamentals alongside this more detailed walkthrough.

The Organic Materials: Wood Chips, Straw, and Wildflowers

The body does not go into the vessel alone. It is surrounded—often layered—within a carefully chosen mixture of organic materials. This is not ceremonial: these materials are doing specific, important work.

Wood chips are the foundation of the blend. They are rich in carbon, and that carbon is exactly what microbial communities need as fuel. Wood chips also create physical structure inside the vessel: the irregular shapes leave gaps and channels that allow oxygen to reach all parts of the chamber. Without airflow, the process slows and the result can be uneven. Wood chips solve both problems at once.

Straw or alfalfa contributes nitrogen, which balances the carbon from the wood chips. The relationship between carbon and nitrogen—the carbon-to-nitrogen ratio—is one of the key conditions that determines how efficiently decomposition proceeds. Straw has been used in composting for generations for exactly this reason: it is inexpensive, effective, and completely natural.

Wildflowers and botanicals serve a dual purpose. They contribute a small amount of additional organic matter and nitrogen, and they also carry meaning. Many providers choose wildflowers in part because families respond to them—they are a familiar and gentle presence. Some providers invite families to bring flowers, herbs, or leaves from a garden their loved one tended, or from a meaningful place. This is one of the ways terramation accommodates personal and family significance at every stage.

The combination of these materials creates the conditions a skilled composter would recognize: the right ratio of carbon to nitrogen, good moisture, and consistent airflow. The difference is that NOR facilities monitor and manage these conditions with precision, ensuring the process meets health and safety standards throughout.

What the Beneficial Microbes Do

Here is the part that often surprises families: no chemicals are introduced during terramation. No accelerants, no additives. What transforms the body is biological — the work of microbes that are already present in the organic materials, on the body, and in the soil ecosystem more broadly.

These are not harmful organisms. They are the same beneficial microbes that break down leaves in a forest, cycle nutrients through healthy soil, and make a garden compost pile work. They are everywhere in nature, and they are extraordinarily good at transformation.

As the microbes become active, the temperature inside the vessel rises. This is not a side effect — it is how the biology works, and it matters for safety. The heat generated by microbial activity reaches levels that meet or exceed public health standards for pathogen reduction, comparable to what regulated composting operations are required to achieve. Washington State, which became the first state to legalize NOR in 2019, established detailed safety requirements for this phase, and those standards have informed regulations across other states that have since followed.

For families who want to go deeper into the science without losing the accessible framing, our companion article body composting explained: the science behind NOR covers the biology in more detail.

How Long the Process Takes

The transformation phase — where the organic materials and the body interact under warm, aerated conditions — takes several weeks to a few months, depending on the provider’s system and the specific conditions they maintain. The exact duration varies across providers because vessel designs, organic material blends, airflow systems, and monitoring approaches differ.

Your provider will give you a realistic timeline based on their specific process and will reach out when the soil is ready. What families consistently report is that providers communicate clearly and that the wait feels purposeful — the time is not empty; it is the process doing what it is designed to do.

If timing is an important factor for your family’s planning, our article on how long terramation takes gives a more complete picture of what to expect and why the timeframe varies.

What Happens to Bone

This is one of the questions families ask most often, and it deserves a direct answer.

Bone material is denser than soft tissue, and some bone fragments may not fully break down during the primary transformation phase — this is normal and expected. When the transformation is complete, the soil is carefully screened. Any remaining bone fragments are separated from the finished soil, processed, and then returned back into the soil mixture.

The result is that what a family receives contains the complete transformed remains of their loved one — not a portion, not a fraction. The entire body has participated in the process. This is different from flame cremation, where what families receive is calcified bone fragments that have been processed into fine ash. With terramation, the outcome is genuine, living soil.

What You Receive: Regenerative Living Soil

At the end of the process, families receive approximately 1/2 cubic yard of Regenerative Living Soil of finished, nutrient-rich soil, about the volume of a large wheelbarrow. It is dark, earthy, and fertile. It is not symbolic. It is genuinely capable of supporting plant life.

What families do with it varies, and there is no single right answer:

  • Plant a tree on private property — a living presence that grows for decades
  • Nourish a garden their loved one tended, or a new one planted in memory
  • Scatter the soil in a meaningful place — a favorite trail, a forest, a body of water — subject to local regulations (similar to rules governing the scattering of cremated remains)
  • Donate a portion to conservation land — many providers have established partnerships with forests, nature preserves, or land trusts for families who want the soil to benefit a larger landscape
  • Keep it close in a planter or container as a living memorial at home

Many families divide the soil among several of these options. Your provider can walk you through any local considerations and help you think through what feels right.

To understand more about what the soil is and how it is used, see our article on what is Regenerative Living Soil and how families use it.

Why Families Choose This

Families who choose terramation most often describe it as feeling right — like the most natural way for a body to return to the earth. For someone who spent a lifetime caring about the environment, gardening, or composting, it can feel like a final coherence between how they lived and what they leave behind.

There are also practical reasons. Terramation produces approximately half a ton less carbon dioxide equivalent than flame cremation — a meaningful difference for environmentally motivated families. No embalming chemicals. No concrete vault. No land permanently dedicated to a burial plot.

And then there is the soil itself. What families receive is not ash. It is something alive, something that can grow.

Where Terramation Is Available

As of 2026, natural organic reduction is legal in 14 states: Washington, Colorado, Oregon, Vermont, California, New York, Nevada, Arizona, Maryland, Delaware, Minnesota, Maine, Georgia, and New Jersey. Washington, Colorado, Oregon, Vermont, Nevada, Arizona, Maryland, Delaware, Minnesota, Maine, and Georgia are legal and currently operational. California, New York, and New Jersey are legal but not yet fully operational — families in those states can begin planning and researching now.

For current, state-specific information, visit states where NOR is currently legal.

Ready to explore terramation options? Contact TerraCare Partners

Find a funeral home offering terramation in your state

Sources

  1. Washington State Department of Health. “Natural Organic Reduction Rules.” WAC 246-500. https://app.leg.wa.gov/wac/default.aspx?cite=246-500
  2. Washington State Legislature — SB 5001 (2019), the first law in the United States legalizing natural organic reduction. https://app.leg.wa.gov/billsummary?BillNumber=5001&Year=2019
  3. Washington State Department of Health. “Natural Organic Reduction Rules.” WAC 246-500. https://app.leg.wa.gov/wac/default.aspx?cite=246-500
  4. Soil Science Society of America — Background on microbial communities, carbon-to-nitrogen ratios, and biological decomposition in managed organic environments. https://www.soils.org/
  5. United States Composting Council — Standards and guidance on temperature requirements for pathogen reduction in managed composting systems. https://www.compostingcouncil.org/
  6. National Funeral Directors Association (NFDA) — 2025 Cremation & Burial Report, disposition statistics and trends. https://nfda.org/news/statistics
  7. Colorado General Assembly — SB 21-006 (2021), legalizing natural organic reduction in Colorado. https://leg.colorado.gov/bills/sb21-006
  8. Oregon Legislative Assembly — HB 2574 (2021), legalizing natural organic reduction in Oregon. https://olis.oregonlegislature.gov/liz/2021R1/Measures/Overview/HB2574