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The Worm Factory Composting System Reviews of 2025

Features

  • Year Round Production
  • Odor Free Operation
  • Expandable with 1, 3, 4, or 5 Trays
  • Easy to Assemble and Manage
  • Ventilation Lid with Tips
  • Can house 8 to 12 thousand worms that consume 5-8 lbs of food per week
  • 5-year warranty on parts and workmanship
  • The Worm Factory is made in the U.S.A.
  • Includes a 16-page instructional booklet with pictures.
  • Built-in worm tea collector tray and spigot for easy draining

Specifications

  • Measures 16" x 16" x 21" for a 3 tray system, 3.5" higher for each tray added
  • The black bin is made from 100% post-consumer recycled plastic
  • The terracotta bin is made from food-grade plastic
  • Weighs 15lb with 3 trays
  • Operational in temperatures between 45 and 85 degrees
  • Colors: Black and Terracotta

Shipping Weights

  • 3 Tray – 12lbs
  • 4 Tray – 13lbs
  • 5 Tray – 14lbs

Included

  • Stacking Trays and Base
  • Instruction Book
  • 1 250gm Coir Brick
  • Shredded Paper
  • Ventilation Tips Lid
  • Spigot
  • Assembly Screws
  • Worm Tea Collection Tray

Compare Products

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2
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4
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    8.6
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Last update on 2025-09-05 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

What is worm composting and why is it beneficial?

Worm composting is an incredibly efficient way to convert kitchen scraps and junk mail into nutrient-rich compost for your plants and garden with the use of worms.

To get the most desirable compost for your plants and gardens is through the use of worms. The worms and bacteria inside them break down kitchen scraps and junk mail and add enzymes and nutrients to the compost. Worm composting creates the kind of compost your plants and gardens will use and thrive off of.

Adding worms to your compost pile helps speed up the composting process as worms continually eat through the waste.

Worm composting also allows you to create your own compost. Worm castings and “worm tea” can be expensive. By making your own, you can have a continuous supply of nutrient-rich compost at a low cost.

Finally, recycling your kitchen scraps and junk mail by worm composting helps reduce your environmental impact while putting something beneficial back into the earth.

What is The Worm Factory and how does it work?

The Worm Factory is a multi-tray worm composter that helps manage the composting process.

Fill each stacking tray with food scraps, junk mail, and other household and garden waste. Worms start in the bottom tray and migrate upward as they break down the waste.

This allows worms to separate themselves from the finished compost making it easy to add nutrient-rich fertilizer to plants and gardens without sorting worms.

Additionally, nutrient-rich moisture is captured in the collection tray and can be drained as liquid fertilizer known as “worm tea”.

What are the benefits of using The Worm Factory?

The Worm Factory is Compact

With its square design and having the smallest footprint of all the worm composters, The Worm Factory works great for anyone with space requirements.

The Worm Factory uses a tray stacking system which allows it to hold the largest capacity of compost in the smallest amount of space.

The Worm Factory is Odorless

The ventilation lid allows proper air flow and the instruction manual helps you manage The Worm Factory correctly to prevent odor.

This means that The Worm Factory can be used year-round and can be housed anywhere including apartments, kitchens, garages, porches, etc.

The Worm Factory is Easy to Manage

The 16-page instruction manual makes the setup process fast and easy and gives detailed instructions on how to manage the bin year-round.

Each tray holds 12.5 lbs of compost which makes lifting and arranging trays effortless. The ventilation lid also contains a list of composting tips for quick reference.

The Worm Factory Saves Time

Let The Worm Factory do the work for you! Instead of spending time turning piles of compost yourself and removing worms by hand, the multi-tray system separates the worms from the compost so you don’t have to.

Also, because the worms continually eat through your kitchen scraps and junk mail, nutrient-rich compost is produced at a faster rate than traditional ways of composting. This allows you to bring rich dark compost to your plants and gardens at a faster rate.

4.7
3 ratings
Doug Hall
WRITTEN BY
Doug Hall