Did you know that food is the #1 least recycled of all waste materials in the world? Food is also one of the largest components in landfills and accounts for nearly 50% of all municipal solid waste. Watch this video to find out how the NatureMill Compost Bin cleverly helps to recycle food wastage quickly and cleanly.

Compost Like Never Before!

Introducing the all new ECO Series.

We just never stop! Our third-generation ECO Series is the latest in a long line of NatureMills dating back to 2004, with over 50 improvements from the last model. We've spent years listening to customers and dealers, perfecting our technology, and testing under the most demanding conditions.
  • Patented air filter technology
  • Quiet operation
  • Innovative TEMPERENE™ technology
  • Greater capacity
  • Easy operation

NatureMill ULTRA - Timeless style

Our top of the line composter offers the highest capacity, superior durability, and timeless style.
  • Automatic compost bin
  • Indoor / outdoor, no trash odor
  • 1 year warranty / lifetime filter
  • 4 gallon (15 L) weekly capacity
  • Genuine steel exterior available
  • Quietest: 47 db average
Terms & Conditions

Sawdust Pellets

Add a little for perfectly balanced compost. (Improves your compost!)


Needed only if you lose or damage yours. 220 / 240V available.

Spare parts

Needed only if you lose or damage yours.

Cabinet Kit

Ideal for kitchen composting.


Two chamber design

So clean and easy, you can even compost indoors. Add food at any time into the upper chamber. Heat, mixing, and oxygen help the natural cultures break down the food within days - before odors develop. Push a button to transfer to the tray below. It will continue to compost there for another week, while you fill the upper chamber again. Remove the tray at your conveinence.

No worms, bugs, or trash odors

Natural compost cultures consume the food quickly, without trash odors. They produce a mild aroma like sourdough bread, mushrooms, or straw. Balance the compost by adding sawdust pellets to increase "brown" content, and baking soda to reduce acidity (both are included). An air pump draws air into the machine and out through a powerful air filter.

All new ECO Series

Our third generation technology is the best yet, with over 50 improvements from the last model. After years of customer feedback, research, and testing, we have the features that everyone has been asking for. Quieter operation, stronger air filter, more capacity, and rugged materials ensure many years of trouble free composting.

Use it anywhere

Fits inside any standard cabinet (cabinet kit sold separately). Keep it in the kitchen, a garage, or laundry room. Use it indoors or outdoors, even in the snow, rain, or freezing temperatures. Keep the power supply dry with an weatherproof power outlet (available at most hardware stores).

Endless supply of compost

Empty the cure tray when when it is full. You can expect about 1.5 gallons (6L) of finished compost every two weeks, depending on your actual usage. Seventy percent of the initial food disappears into thin air, as the cultures convert it into water which evaporates. What's left is a concentrated compost fertilizer. It's ready for use outdoors, or leave it in a bucket until you are ready to use it.

Good for the garden

Food compost is very high in nitrogen, which is essential for healthy plants. Use it on a garden, lawn, shrubs, trees, or indoor potted plants. Spread over the soil surface, like mulch. Nutrients will gradually enter the soil during watering and annual tilling. One batch is enough for 10-40 sq ft (1-4 sq m) of a lawn or garden, applied once or twice per year. Or use one batch per tree.

Great for the planet

Energy use is just $0.50/month - less than a garbage truck would burn in diesel fuel to haul away the same waste. A NatureMill composter recycles its weight in waste every 10 days, diverting over two tons of waste from landfills over its life. This reduces emissions of methane, a harmful greenhouse gas produced when organic matter decomposes in oxygen-starved landfills. NatureMill is made from recycled and recyclable materials. Every NatureMill composter meets California Energy Efficiency Level IV - the most stringent energy standard in the world.


In the News


Product Review
"The NatureMill Pro XE gets the highest marks..."

Product Review
"...reduce the mountains of garbage..." read review (bottom of page)

Product Review
"The search for the best composter on the market."

Better Business Bureau
Company Reliability Report from the BBB of Greater San Francisco


Design Award
Ecodesign category. IDSA, BusinessWeek, Target and Autodesk proudly present the winners.

Design Award
NatureMill wins prestigious award for eco-responsive design.

Product Award
Home Tech: "Indoor compost without the odor."

In the News

"All Things Green"
"...also liked the NatureMill, a small indoor composter...."

"Spare a landfill, feed a garden."

Oprah's Earth Day Event
"Apartment-dwellers can also reduce waste with small, indoor..."

"Stylish Green Kitchen Gear"
"transform biodegradable items... into fertilizer.

"Better way to handle scraps"
"Less energy than a refrigerator light bulb..."

The Times of London
"For smell-free home-composting that looks good in your kitchen (for around the price of an iPod) look no further..."

"Make Less of a Mess"
"Sleek, odorless composters eat up food..."

Home & Garden TV
"You won't have to worry about any odors."

Main St. Business Report "Small Biz Profiting From Your Trash"

"Compost in the City"
"The answer to an apartment composter's prayers."

"9 Ways to Go Green"
"If you're a serious gardener, compost with an odor-free system..."

Discover Magazine
" might soon become an American household mainstay."

"The Smarter Home"
" easy as tossing scraps into the disposal."

"Trash into Dirt"
"...Turn trash into clean garden dirt with no mess, odor or effort."

Everyday with Rachael Ray
"The composter hides in here. Converts kitchen scraps into fertilizer..."

"The NatureMill indoor composting appliance was developed by some ingenious San Fransiscans... "

"Keep it inside"
"Tools make composting easier. Scraps are placed in the top..."

"Compost indoors with new machine... Free of odor and messiness."

The Daily Planet
"A great way to go green or brown"

"Garbage In...Compost Out..."
"Live downtown, but still have a green thumb and a green heart? Here's the perfect addition...."

"Modern Marvels"
"No smell, no mess, and no new landfills."

"This Kitchen Composter is Naturally Easy on Nose"

"Compact Composter"
"City dwellers take note..."

Indoor composting made easy
"...easy for households to incorporate into their daily routine."

"Uncomplicated Compost"
"...after two weeks you've got garden-ready fertilizer."

The Bay Area's News Station
"San Francisco inventor shows off new composting technology."

"Waste Not, Stink Not"
"The first nose-friendly indoor composter reaches the U.S. "

"Composting without any smell, mess."

"Waste Not, Stink Not"
"The first nose-friendly indoor composter reaches the U.S. "

"MIT Grad Develops Easy to Use Composter."

"Automatic composter recycles effectively."

"Go Ahead... Go Compostal!"
"See how effortless composting indoors can be with this odor-free...."

Easy on the Nose
"Garden ready compost-fertilizer every two weeks...."

"Odor-free and automatic Composter for Paper and Food"


"My NatureMill composter is awesome! We use to throw away so much food because it passed the expiration date, or it was pushed to the back of the refrigerator for too long...I've recommended this product to all my friends and family--especially those with a stinky kitchen trash!! It's infinitely better than baking soda and so good for my plants! The only downside is that we sometimes run out of food to put in it!"
Anna Y. (Arizona)
"This thing is has reduced our household waste 50% and has led us to make healthier food choices.... THANK YOU FROM THE BOTTOM OF MY GARDEN!"
Jacob S. (Wyoming)
"What I love about NatureMill is how EASY it makes composting - no odors, no sifting through the compost layers, no waiting - instant gratification...My household benefits from saving money in not having to acquire a larger trash container. We also are more aware and enlightened about waste. We have our recycling and our composting so we make a conscientious effort to avoid items that would mean additional garbage in the main trash container."
Karen B. (Texas)
"NatureMill has changed my life. As I get older I can't turn my compost pile (and I never really got it to work anyway). Now I have great compost on a regular basis, without the heavy lifting."
Edmond R. (Nevada)
"I think my Nature Mill is the greatest! Within about a week it produces a rich, dark compost that's wonderful for our garden spots, both floral and vegetable. And the compost tea collected in the reservoir is an added bonus very much appreciated by all of my houseplants!"
Valerie M. (Montana)
"We had been making the trip out to the compost bin for years with very little to show for it. Now we get better compost without even stepping outside. Why didn't someone invent this earlier?"
Susan T. (Oregon)
"The great thing is that I didn't have to put anything together. Simply plug it in and start using it... Cuts down on house hold waste and is great for the environment."
Jeffrey B. (New Jersey)
"I'm so pleased that (NatureMill) is selling so well. Good for you for coming up with such an easy way to compost!"
Vanessa Y. (Alberta, Canada)
"NatureMill is great - Its so simple to use and no odor. I was completely surprised to see how fast compost was made....I would recommend NatureMill to anyone."
Erica J. (New York)
"For years, we've wanted to compost, but the condo association wouldn't have been happy with a big bin in the back yard. NatureMill is solving our problem perfectly--we have it in our kitchen ... and we feed it all of our scraps. Thank you for this clever machine!"
Sarah V. (Illinois)
"The compost is sweet, rich, and perfect texture. I'll bet my garden produces like crazy next season. It makes me feel so good that I'm adding really rich soil to the earth."
Cynthia N. (Idaho)
"What a great product this is!I'm the busy-mom type; I'd like to help save the environment for my kids but composting seemed like a lot of work--until I found your product!"
Janet L. (Alabama)
"This thing is built like a gem. Please thank the individual or team who designed it, as I totally appreciate the simplicity!"
Kevin L. (Oregon)
"With NatureMill, I don't have to work so hard at making compost. I have lots of compost bins, but they tend to dry out and require a great deal of time and attention to make compost."
Nicki F. (Arizona)

Press Releases

Press Kit

Company information Electronic press kit (EPK) (2.4MB, PDF)
Company fact sheet (28KB, PDF)
Founder's bio sheet (11KB, PDF)
Brochure Download the brochure (2.9MB, PDF)
Hi-res images Download hi-res images from our image library
Press coverage View press coverage on our In the news page
Review unit To request a review unit, please send us an email with your media credentials and shipping address.

Dealers, members of the media, and other affiliated parties are hereby granted permission to reproduce content from this website, including images, for the purpose of promoting NatureMill and NatureMill products in any way that is beneficial to and without disparaging of NatureMill, Inc.

Images Library

To download, right click and select "Save as..." (for Mac: "Download linked file" from the menu).

Dealers, members of the media, and other affiliated parties are hereby granted permission to reproduce content from this website, including images, for the purpose of promoting NatureMill and NatureMill products in any way that is beneficial to and without disparaging of NatureMill, Inc. If you would like permission to republish information for any other purpose, please contact us.


The Story of Composting

Food is the #1 least recycled of all waste materials. There is just no easy way to recycle food - until now! Our society recycles more and more paper and plastic each year, which shows our potential once a technology is in place to make things easier.

The Biodegradable Irony

Food decomposes by itself in nature. However, it is one of the largest components in landfills, accounting for nearly 50% of all municipal solid waste. There is more food in landfills than diapers, styrofoam, and tires — combined.

Landfills are layered deep and saturated with water. No oxygen can penetrate. As a result, even "biodegradable" waste will remain embalmed for centuries to come. Landfills produce methane, a harmful greenhouse gas 21 times more potent than carbon dioxide (according to the US EPA), and leach toxic chemicals into our air and drinking water.

On a more urgent note, we are running out of landfill space—that is, open space reasonably close to population centers. Stories abound of trash barges with no place to dock, ocean dumping, and trash exported to poorer countries. Landfill costs are skyrocketing, which means higher fees (or taxes) for everyone. The organic nutrients present in food and paper waste are removed from the food chain, requiring gardeners and farmers to instead rely on chemical fertilizers to replenish their soil. National and local governments around the world are enacting regulations to limit trash and increase recycling.

Cultures at work

Microscopic compost cultures, which are present everywhere in nature, eat away at organic waste material. Most of the material is converted into water vapor, which evaporates away. Roughly 25% of the material remains in a highly nutrient rich form which re-enters the food chain as a natural organic fertilizer called compost. Of particular value is nitrogen, which is difficult for plants to obtain in a usable form. Compost is also very useful for retaining moisture due to its spongy, fibrous texture. The most important requirement for compost cultures is oxygen - without it they can not survive.

Spread composting and grass-cycling

Left to itself out in the open with oxygen, compost cultures break down organic matter into fertile soil. In the most primitive form of home composting, simply spread waste out and eventually it will go back to nature. In a process called "grass cycling," just leave grass clippings right there on the lawn rather than collecting them in a bag. They will dry out in a few days and will be hardly noticeable. The process takes a year or more, however, and some organic wastes will attract pets, children, rats, and raccoons. It's fine for grass clippings but not for kitchen compost.

Backyard composting

You can accelerate and partially contain the home composting process by building a heap, compost bin, or compost tumbler. Compost cultures, already present in most foods or added from a starter pack, eat away at the waste material and produce heat as a byproduct. If the material is piled high enough, heat is trapped inside and can raise temperatures significantly. The heat allows the cultures to work faster and reproduce faster to increase their population, which in turn reduces composting time to a few months or weeks. You can build a home compost heap with just a pitch fork, or use any one of a number of inexpensive or home made compost bins and compost tumblers and tools to keep things organized. Many garden centers sell compost bins and compost tumblers and offer courses on how to compost in your backyard.

But backyard composting has drawbacks. The heap must be at least three feet (one meter) high to generate sufficient heat. A typical compost bin or compost tumbler is not big enough and so sufficient heat is never achieved. And if it is too big, oxygen will not penetrate. The compost must be turned periodically so the cold outer layer has a chance to get inside where it is warm. This is backbreaking and dirty work. Moisture level, acidity, and the carbon to nitrogen ratio must be carefully managed. In most climates, winter temperatures destroy the compost cultures. Most compost bins and compost tumblers are not attractive. Certain foods wastes such as meat, fish, and dairy products, have obvious health hazards and are not suitable for a home composting. You may be surprised to find seeds from a single discarded tomato or apple germinating all over your garden. Besides, not everyone has space for a compost heap. It is the same thing for worm composting and using a worm compost bin, which will be explained in better detail later on.

Municipal Composting

Some towns and cities have begun programs to make compost on a massive scale. Food, paper, and yard waste are collected from homes and restaurants, and hauled to a large field. The material is sorted, shredded, and arranged in long rows, called windrows. Each windrow is ten feet high and hundreds of feet long. Industrial fans and ducts blow air through the material to improve oxygen flow. In some cases, windrows are covered with a plastic sheet to contain moisture and reduce odors. Specialized tractors turn the material periodically.

A chemist monitors temperature, moisture level, and other indicators to ensure safe and effective composting. Temperatures inside are so hot that they actually sterilize the compost and render even meat, fish, and dairy products safe for handling. The finished product is often very valuable, and can be sold to the agricultural industry to offset the cost of running the facility. Making composting is very cost effective when compared to landfills.

Windrow composting has drawbacks, namely storing, collecting, hauling, and processing of all that rotting kitchen compost material. Rats, raccoons, flies, fluid dripping, and odors can be hazardous at collection points as well as on route to the composting facility. In most cases, an additional fleet of diesel trucks, with all their dirty emissions, is required. The air ducts and plastic covers are usually discarded after just one or two uses, thus contributing to landfills. Initial startup expenses can be prohibitive.

In-vessel systems

For years, hotels, schools, food processing plants, prisons, and other large institutions have used industrial machines to make compost and reduce waste hauling fees. The machines are essentially big tanks with lots of heavy duty mixing and pumping equipment. The compost is fully contained, such that fluid drippings, flies, and odors are eliminated or otherwise disposed of. High temperatures can be reached quickly and reliably to render meat, fish, and dairy products safe for handling.

But there is a downside. The investment is typically tens of thousands of dollars, and requires a great deal of space with special sewer and electrical hookups. A dedicated, trained, and experienced staff must operate and maintain the equipment. Depending on location, odors can be a problem.

Worm composting

Another approach is to let worms eat your trash, in a process called "vermi-composting." Worms will eat almost any kitchen compost, produce little odor, take up little space, and they work fast. A variety of inexpensive or home made bins contain the worms and wastes such that you can add more waste and remove the finished product in a convenient way.

The disadvantages of worm composting are many. The worms don't sterilize the material with high temperature, so meat, fish, and dairy products are not safe for worm composting, and germination of seeds may occur. Some people encounter smells and excessive fluid drippings, depending on the type of kitchen compost used. And of course, there is always the fear of worms getting loose—whether from the quest for more food, or inadvertent encounters with children or pets. For some, the very idea of squirmy little critters is simply not acceptable.

NatureMill—a home solution

NatureMill brings home composting to the mainstream user. It is essentially a miniature in-vessel kitchen composting system. NatureMill delivers an answer to the problem of space and labor for both traditional composting. It is a great upgrade from an ordinary compost tumbler or worm compost bin. Waste is collected right where it is generated—in the kitchen. A computer controls the temperature, air flow, moisture, and mixing to accelerate the process and eliminate the backbreaking work. Everything is fully self contained in a modern, attractive container. Just a few square feet of floor space is required. No special plumbing or electrical connections are needed, other than a standard electrical outlet. There is no need to handle and transport the rotting material.

Best of all, NatureMill provides home gardeners with a source of rich, organic compost. And there is something uniquely satisfying about witnessing the entire food chain: from the garden, to the dining table, and back to the garden again.


A San Francisco Start

NatureMill inventor Russ Cohn is not easily impressed. Back in 2002, his home town of San Francisco started collecting food scraps for composting, in addition to collecting bottles and cans for recycling. 'Now that really makes sense,' he thought as he eagerly tossed his food scraps into the shiny new green bin provided by the city. Less landfill trash means less global warming. Way to go San Francisco!

Unfortunately, it wasn't so easy. Within a few weeks, the green bins up and down his block became grimy and insect infested. A raccoon family moved into the neighborhood. Trash day became even more unpleasant than usual - especially on a warm day. Soon compost collection became mandatory for all buildings in San Francisco, with "trash police" handing out steep fines to those don't comply.

A Chance Discovery

Then a funny thing happened. Russ went on vacation and forgot to empty hia kitchen compost bucket. A nasty surprise awaited his return: an unbearable smell, fruit flies, and a very unpleasant clean-up job.

Grudgingly cleaning the bucket, he noticed it was warm - evidence that microorganisms were hard at work. The composting process had already begun right in kitchen bucket! Just a little more oxygen, some mixing, insulation, and a filter could make the process clean and reliable. As an MIT graduate and garage tinkerer, it wasn't long until he got to work building a better composter. Dozens of patents and prototypes, the NatureMill home compost machine was born. Within months the product took off and was picked up by Home Depot and Amazon. The rest is history....

We're up to great things. Just watch us. Someday everyone in the world will make compost, and what a difference that will make.

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Technical specifications

Size and weigh 20" long x 12" wide x 20" high (50x30x50H cm); 17 lbs (8 kg)
Capacity 2-4 gallons per week (8-15 L), depending on the model.  Ideal for up to 5 people. Add food items any time, any day.
Foods you can compost Accepts most foods, even meat, fish, and dairy! The hot composting conditions break down most foods quickly and safely. Avoid hard items such as bones, or fiberous items such as paper, corn cobs, and corn husks. Broccoil, cauliflower, cabbage, and related plants cause strong odors, so avoid them or keep your composter outside. The instructions contain a detailed reference sheet with specific examples. 
Temperatures EXTERNAL: use in any location 0-120F (-18-50C)  
INTERNAL: up to 140F (60C) reactor temperatures 
Rate of compost production One batch every 2 weeks, containing approximately 2 gallons (8L), depending on actual usage.  
Finished product High nitrogen compost - a soil amendment for lawns, gardens, trees, or potted plants.  Compost is ready to use outdoors. 
Compaction 70% or more, volume and weight reduction, due to bio-degrading (composting) and mechanical  breakdown
  • External housing: recyclable, durable, recyclable energy-efficient TEMPERENE ™ material
  • Food-grade stainless steel internal components
  • Used properly, will last many, many years.
Installation No installation is required.  Plug into a standard power outlet.  For outdoor use, keep power supply dry.  
For installation inside a cabinet, we recommend our cabinet kit - some assembly required. 
Cost savings
  • Reduce trash enough to qualify for a discounted trash collection rate.  Contact your trash company for details.
  • Save money on fertilizer.
  • Less watering due to high moisture retention of compost.
Power Consumption

About $0.50 per month, depending on local rates.  Uses far less energy than hauling the same amount of waste in a diesel garbage truck.

All NatureMill composters meet or surpass stringent efficiency requirements of California Energy Efficiency Level IV. 

Works with North American (110V/120V) or  European (220V/240V) power supply.  UL and CE compliant. 

Cleaning and Maintenance Wipe the hopper and exterior with a moist towel.  Rinse the cure tray and drip tray when you empty them.  Do not disturb the compost cultures in the reactor chamber.  Do not use soaps or chemicals.   Replace air filter every 5 years or as needed. 
Warranty and returns 1 year warranty / lifetime filter. We will provide free replacement parts, or replacement of entire unit, depending on the situation. 

Return an unused composter within 30 days for a full refund.  Due to the sanitary restrictions, used composters generally can not be return shipped. 


  • 56, Jalan Metro Perdana Barat 13,
    Sri Edaran Industrial Park Off Batu 7,
    Jalan Kepong, 52100,
    Kuala Lumpur, Malaysia.
  • [Tel] +(60)3-6252 9793
  • [Fax] +(60)3-6251 9793