
Human Composting 101
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November 13, 2025
- Human composting is available to California families from Earth Funeral
- Soil transformation is a gentle, natural, and eco-friendly end-of-life option
- Earth Funeral is available to California families facing an immediate need, imminent loss, or planning ahead
- Earth Funeral is the national market leader in soil transformation
- Human composting is legal in California, and California families can access services today
Earth Funeral's soil transformation services are available to California families.
This gentle, natural, and environmentally conscious method is an alternative to traditional burial and cremation, and for California families, our team is ready to help today.
What is Human Composting?
Human composting, also known as soil transformation, natural organic reduction (NOR), or terramation, is a process that gently transforms a body into nutrient-rich soil over 30 to 45 days.
Rather than burial or cremation, the body is placed in a purpose-built individual vessel alongside organic materials like wood chips and mulch. Naturally occurring microbes do what nature has always done: they break down organic matter and return it to the earth. The result is approximately 250 pounds of clean, nutrient-rich soil that families can use to plant a tree, nurture a memorial garden, or donate to conservation projects that restore ecosystems across the country.
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Is Human Composting Legal in California?
Yes. California signed AB-351 into law in September 2022, recognizing soil transformation as a legal disposition option. California families can access services through Earth Funeral today, and as in-state facilities come online in 2027, service will be even closer to home.
Can I Choose Human Composting as an California Resident?
Yes, Earth Funeral provides end-to-end care for California families. Our comprehensive packages include:
- Services of a licensed funeral director
- Collection & care from place of passing
- Filing of all necessary paperwork & permits
- Transportation to one of our state-of-the-art facilities
- An Earth soil transformation
- The soil returned to the family
- Worldwide travel protection
- Access to the Earth Family Portal
We can work with you to arrange transportation of a loved one to our facilities for immediate need services or help you pre-plan and secure today's pricing for future arrangements.
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How Does Human Composting Work in California?
When a California family chooses Earth Funeral, here is what happens:
Care and transport. Our Care Team coordinates collection from the place of passing and transportation to one of our state-of-the-art facilities, powered by renewable energy. Earth Funeral handles all transportation, paperwork, and permits so the family doesn't coordinate logistics.
The transformation. The body is placed in a proprietary stainless steel vessel, continuously monitored for temperature, moisture, and airflow. Over 30 to 45 days, the body is gently transformed into soil. Families receive updates at each stage through the Earth Family Portal.
Return of soil. Approximately 250 pounds of nutrient-rich soil is returned to the family. They then choose what to do with it, plant it, spread it somewhere meaningful, share it, or donate the remainder to land conservation.
Create an instant quote to see exactly what's included for California families.
Is Human Composting Environmentally Friendly?
Yes, soil transformation is significantly more environmentally sustainable than traditional burial or cremation. Soil transformation produces no net COâ‚‚, versus the 535 pounds emitted by the average cremation. It requires no land, uses no toxic chemicals, and runs on renewable energy. The soil it creates can nourish trees that capture carbon for decades.
For California families who have spent their lives caring about the land, the ancient redwoods of the Northern Coast, the wild Sierra Nevada, the rugged shores of Big Sur, soil transformation is an end-of-life choice that gives back rather than takes away.
Our process:
- Uses renewable energy
- Requires minimal water compared to other disposition methods
- Creates nutrient-rich soil that supports conservation projects and ecosystem restoration
- Avoids the land consumption, toxic chemicals, and resource intensity of traditional burial
- Eliminates the fossil fuel consumption and emissions of cremation
You can learn detailed comparisons and environmental data in our comprehensive Environmental Impact of Funeral Choices research report.

Can I Pre-Plan Human Composting in California?
Yes, and it is one of the most meaningful things you can do for the people you love.
Earth Funeral offers flexible pre-planning options that provide both peace of mind and practical benefits.
Emotional benefits:
- Gain "mortality ease," a sense of completion that allows you to focus fully on living
- Eliminate anxiety about "what ifs" by knowing your wishes will be honored exactly as specified
- Create clear guidance that prevents family conflicts and confusion during grief
Practical advantages:
- Lock in current pricing and protect against inflation. Funeral costs have risen consistently faster than regular inflation
- Spare your family from making over 125 decisions while grieving (only 36% of Americans have documented funeral plans)
- Prevent emotional overspending as grieving families often make expensive choices due to guilt and time pressure
Our streamlined process takes just minutes and can be completed online, by phone, or in person, whatever feels most comfortable for you.
You can learn more about the benefits of funeral pre-planning in our Complete Guide to Funeral Pre-Planning.
What Can California Families Do with the Soil?
Every family's answer is different. California families have used their soil to plant memorial gardens, nurture trees in a loved one's favorite outdoor spot, and share portions among family members across generations. Some keep a small amount crafted into memorial jewelry. Others spread it along a favorite hiking trail or in a cherished backyard. As with any organic material, we always recommend verifying local rules and regulations before spreading soil on public or private land, as these vary by location.
Families can:
- Pot their soil in a houseplant
- Plant their soil in a memorial garden or tree
- Spread soil in a sentimental location
- Share soil with friends and family
- Wear soil in memorial jewelry
- Keep a portion for future meaningful moments
- Use the soil to create living memorials that continue to grow and benefit the environment
Any soil the family chooses not to keep is donated to conservation projects, growing trees, restoring habitats, and nurturing native plants across the country.
There is no single right answer. Our How to Use Your Soil guide shares real stories from families who have found what felt most meaningful to them.
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Where is Earth Funeral Available in California?
Earth Funeral is currently available to families in the following California counties:
Alameda, Alpine, Amador, Butte, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humboldt, Imperial, Inyo, Kern, Kings, Lake, Lassen, Los Angeles, Madera, Marin, Mariposa, Mendocino, Merced, Modoc, Mono, Monterey, Napa, Nevada, Orange, Placer, Plumas, Riverside, Sacramento, San Benito, San Bernardino, San Diego, San Francisco, San Joaquin, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Santa Cruz, Shasta, Sierra, Siskiyou, Solano, Sonoma, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Ventura, Yolo, and Yuba.
Create a quote here to see what's available where you live.
Learn More
Ready to explore soil transformation for your California family?
- Create a personalized quote — Get pricing and service details tailored to your needs
- Contact our Care Team — Speak with a licensed funeral director about your options
- Watch how it works — See our facilities, our process, and the families who chose Earth Funeral



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