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The Worm Factory Composter

As Low As: $89.95

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The Worm Factory three-tiered composter is perfect for indoor or outdoor use.

Get the refill kits here!


Availability: In stock

Product Name Price Qty
The Worm Factory Composter - Black
3-Tray Composter
The Worm Factory Composter - Terracotta
3-Tray Composter
The Worm Factory Composter - Green
3-Tray Composter
The Worm Factory Composter
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The perfect worm composter!

Worm composting is a naturally efficient way to convert otherwise land-fill garbage such as newspaper, junk mail, fruits, vegetables, egg shells, coffee grounds, and cardboard into nutrient-rich organic compost for your garden.

It is constructed from high quality recycled plastic, made in the USA, and is backed by a limited 5 year warranty.

The Worm Factory is a three-tiered system that separates the worms from the useable organic compost material. The Worm Factory is easy to set up and easy to use, the worms do all the work! Your scraps and worms go into the bottom tray, and as the worms digest, they migrate upward into the tray above, leaving rich worm castings behind. The concentrated liquid created from the worm castings, also known as worm tea, can be effortlessly drained as liquid fertilizer from the spigot at the bottom of composter. The lid also provides proper ventilation so there are no unpleasant odors. Because it's clean, mess free, and odor free, composting with The Worm Factory makes it possible to be placed indoors or outdoors for home owners and apartment dwellers alike.

In full operation, the Worm Factory houses 10,000 to 12,000 worms which consume 5 to 8 pounds of food a week, allowing you to harvest a full tray of nutrient rich castings every month. Each composting unit comes with simple but detailed instructions to help you get started. Your plants will thrive in this rich, organic, natural worm compost!

How much should you feed your worms? Feed one pound of worms one half pound of food per day. You can over feed the worms, but this would create a gooey of "wet garbage" that can cause offensive odors, excess heat and slow down the worms' ability to process food.


  • 1 base tray with legs
  • 1 water collection tray with a large drain hole on the side
  • 1 water collection liner
  • 3-5 working trays with 4 small holes each
  • 1 lid
  • 1 piece of cardboard
  • 1 bag of vermiculite
  • 2 coir bricks
  • 1 bag of shredded paper
  • 2 ᄐ " x 34" stainless bolts
  • 1 plastic valve
  • 1 metal washer
  • 1 plastic valve ring
  • 1 plastic knob (for lid) with spacer nut
  • 1 ᄐ " stainless nut (for knob)
  • 1 bag of plastic shelf clips (12 pieces for 3 tray model)
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    Green first what matters most. Your trusted online source for green products since 1999
    Green Home is the original online ecostore, based in San Francisco, California, in the heart of both the environmental and cleantech industries. Since 1999 Greenhome.com has played its part as one of the most comprehensive online resources for greening your home and greening your business. Our company is on a mission to green the world, one person (and one business) at a time. While all of our products are eco-friendly, we are especially passionate about compostable plates, cups, bowls, cutlery & utensils, take out containers and bags.  If more businesses and individuals switched from disposable to compostable we could make a real impact on the world!

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