The remains of a pig after processing at Return Home in Auburn, the world’s first, large-scale terramation facility. (Nathan Janser)

The remains of a pig after processing at Return Home in Auburn, the world’s first, large-scale terramation facility. (Nathan Janser)

Large-scale, human composting facility set to open in Auburn

The chemical-free “terramation” process takes two months to turn a body into a dark, odorless soil.

Returning the human body to the earth without flames or chemicals.

Such has been a long desired alternative to pumping formaldehyde into a loved one, encasing them in a concrete vault reinforced with rebar and burying them in a six foot deep hole.

Or to reducing one’s once-larger-than-life mama or papa, sister, brother or dear friend to a handful of grey ashes.

At last, technology, time and the law have aligned to allow what some once might have considered a fantasy of aging hippies to become reality, poised to reform and rock the death care industry.

As soon as April or mid-May 2021, Return Home, the first, large-scale “terramation” — human composting — facility ever built in the world, opens in an 11,500-square-foot warehouse on Auburn’s north end, with 72 vessels that can transform 72 bodies per month into soil at 30 times the rate of ground burial.

To bring “sustainable disposition to the mainstream,” said Return Home’s CEO and founder, Micah Truman.

At the outset, Return Home’s approach is no different than traditional burial or cremation. When someone has died, it’s usually family or friends who reach out, and people are highly directed in what they want to do. For example, last week, Return Home got a call from people in Los Angeles who were unwilling to use a crematorium and had already heard about Return Home.

“We can either work with funeral homes, or we can take the body and work directly with the family,” said Truman. “We deal with transportation, both to here and back with the soil. It’s completely turn-key, so the family has nothing to worry about. And we have the facility internally, and the technology, which is entirely unique, to completely transform a body into soil, at incredible rates of speed.”

How it works

The process uses a vessel, or pod — 8 feet long by 3.5 feet by 3.5 feet — into which workers first place the all-organic bulking material of alfalfa, straw and sawdust. When they have placed the body inside, they close the pod.

The pod includes proprietary machinery and technology that Return Home will not allow the public to see.

What happens next is analogous with composting. In this case, the mix and the body reach a temperature just south of 140 degrees, which is almost cooking heat. The process is aerobic, meaning oxygen flows continuously in and out of the vessel. It takes the microbes in the body and puts them on hyper-drive, making them work incredibly fast. Typically, it takes many years to get that done, leaving behind soil.

“It’s what nature meant us to do. We just do it faster,” Truman said.

Carefully-trained technicians monitor the process. An air-filtration system informally called “The Octopus,” which is attached to all 72 pods, carries the odors to a machine where they are treated.

Within a month, the body is gone, leaving only the bones, which workers reduce and then return to the soil in the pod.

After one more month — two months in total — the remains are given to the family.

“This is what we give the family,” Truman said, nodding to a bowl brimming with what had once been a dead pig, but was now a fine, dark brown, odorless compost, which slips with ease from the hands and through the fingers. “This is something you can plant in your rose garden, Uncle George no less.”

People, Truman noted, have a legal right to use that compost in whatever way they want, just as they are allowed to do with cremated remains.

“We have been working on this for 26 months now, and our facility is just getting up. The science was a heckuva lot of work. Then, after we did the science, we had to build the technology, and every machine was individually-designed and custom-produced. That was its own thing. Then we had to find a facility, and the facility had to be zoned as a crematorium, of a certain size, at a certain place, and that was its own adventure.

“We had to design this air filtration system we call Octopus, and Octopus was its own animal, pun fully intended. It’s a very specific design that we did and unique to our industry. So, basically, all the things that we’ve created have taken a great deal of time and expertise to complete, but I think we’re there, we’re ready to go,” Truman said.

Public is ready

On average in the United States, funeral services and all things associated cost a grieving family about $6,000, though there is no limit on the price of caskets. Return Home offers its services plus transportation for $5,000.

“So, we are very moderately priced, and we ensure that your last act on this planet is to give back to it, and not pollute it,” Truman said.

Truman said he is confident “the mainstream” is ready to embrace the idea of turning a body into compost that can be returned to the earth without polluting it.

Indeed, the first human composting company, Recompost, opened weeks ago in downtown Kent, though at a much smaller scale, with 10 vessels, and another facility in the southern part of the state is already open with two vessels. Both facilities are already at capacity.

Of course, Truman is aware that some people will be queasy at first about this notion of planting one’s beloved in the backyard garden.

“I think we always state that we’re uncomfortable with Uncle George going to feed the roses, but Uncle George is going to feed the roses, no matter what,” Truman said. “It’s a little bit of a misnomer to assume that we’re doing something different than the world has always done. So, as I look at weird, I can see our way as fairly sensible, and the other ones as a little more of a twist. It’s not a matter of our disposition method because ours is the most benign of the bunch.

“I think what concerns us most isn’t our final disposition. I think what concerns us most is that in order to talk about this, we have to talk about dying. And we don’t like to talk about dying. It involves even our own mortality, and, more difficult, the mortality of the people we love,” Truman said.

The reaction from faith communities has been mostly positive to date, Truman said.

“Well, there are always going to be certain objections,” Truman said. “The Catholic Church objected to cremation for a long time, but I think they’ve come around. I was just talking on our webinar with a group of rabbis two weeks ago, and they were incredibly interested. They were saying, ‘You know. Jewish burial tradition is just that: it’s tradition; it’s not scripture. What Scripture says is we’re supposed to give back to the earth. That’s our obligation.’ So I was really blown away by the Jewish community I was listening to. In fact, three rabbis are coming here to tour our facility right after Passover. There is a spectrum, but I don’t actually see huge resistance from a great deal of it, no more than with any other effort that I would see.”

Before any of this could happen, Truman noted, the Washington state Legislature had to approve SB 5001, which legalized terramation starting in 2020.

“This is unprecedented,” said Truman. “Iceland, Norway, no one has it. This is the first place in the world to do it. And for some crazy reason, Kent, and Auburn where I am, are at the epicenter of this industry. So suddenly, we have this particular region that the whole world is going to be looking at, and that’s kind of crackers. SB 5001 literally changes how we do death care in America. We have cremation, we have burial, and now we have been given a third option.”

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Northwest

The U.S. Capitol building in Washington, D.C., on May 7, 2025. (Photo by Jennifer Shutt/States Newsroom)
End of shutdown ignites sparring among congressional lawmakers

Meanwhile, U.S. Rep. Marie Gluesenkamp Perez was among six Democrats who sided with Republicans in voting the legislation out of the House.

Attorney General Nick Brown has proposed new advice for locales on how to interpret state public records law, with a focus on providing records faster. (Stock photo)
Need for speed: Plan to unclog WA public records system gets mixed reviews

Washington’s attorney general is seeking to reduce public record backlogs as concerns… Continue reading

Washington state Commissioner of Public Lands Dave Upthegrove waves to the crowd during inauguration ceremonies at the Washington state Capitol, in Olympia, on Jan. 15, 2025. (Photo by Ryan Berry/Washington State Standard)
Dave Upthegrove on land sales, federal funding cuts and wildfire immigration raids

Washington state’s new public lands commissioner came into office with his own ambitious agenda. It’s playing out against a shifting backdrop in D.C.

The so-called “big, beautiful bill” that congressional Republicans approved in July included a total of $50 billion for the Rural Health Transformation Program. The money is meant to offset some of the expected damage to rural hospitals from the law’s steep cuts to Medicaid. (Olivia Vanni / The Herald)
Washington makes pitch to feds for $1B in rural health funding

The money was included in Republicans’ “big, beautiful bill.” The state’s goals include strengthening the rural health workforce and improving care in tribal communities.

Screenshot from the state Employment Security Department’s website at esd.wa.gov. (File photo)
Expected slide in WA unemployment trust fund balance could trigger new tax

Washington businesses would need to shoulder roughly $700 million in additional taxes… Continue reading

The Washington state Capitol. (Jerry Cornfield/Washington State Standard)
State Democrats mull imposing income tax on higher earners

The idea is brewing ahead of the 2026 legislative session. It would target those making above $1 million. The state is one of nine that does not tax wages.

Washington state Commissioner of Public Lands Dave Upthegrove speaks at a press conference on wildfire issues Monday in Tumwater. (Photo by Bill Lucia/Washington State Standard)
Climate dollars eyed to backfill WA wildfire funding

Washington’s lands commissioner, Dave Upthegrove, is on a mission to secure $60… Continue reading

Washington Gov. Bob Ferguson, left, shakes hands with Cowlitz Indian Tribe Chairman Bill Iyall after signing an executive order to improve the state’s relations with tribal governments on Wednesday. (Photo courtesy of Washington governor’s office)
WA governor moves to improve state consultation with tribes

A new directive expands tribal relations training for state workers among other actions. Tribal leaders voiced support.

New map tracks measles exposures across Washington

Afraid you may have been exposed to measles? Washington’s Department of Health… Continue reading

A combine at work in wheat fields in the Walla Walla region during 2018. (Washington State Department of Agriculture)
State halts rebates to farmers hit with fuel fees under WA climate law

Instead, a new online directory shows retailers who provide the farm fuel exemption by not imposing surcharges.

Washington transportation officials say a lack of funding means dollars intended for preservation and maintenance are the ones diverted to deal with emergency situations. Before (left) and after (right) photos of the mudslide and cleanup on State Route 20 following an Aug. 11 mudslide. (Washington State Department of Transportation)
‘Early stages of critical failure’: Outlook grim for road upkeep

Billions more dollars are needed for preserving highways and bridges, WSDOT says. The agency’s leader didn’t request more maintenance money for 2026.

Washington state Attorney General Nick Brown, seen here during a January interview, is sparring with members of Congress over the state’s immigration policy (Photo by Ryan Berry/Washington state Standard)
Washington AG pushing new law to protect workers from immigration raids

The proposal would require businesses to tell employees if ICE is coming to inspect company records in search of employees who are not legally able to work in the country.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.