A worm harvester

A worm harvester is a machine that is used by many professional worm farmers. They come in many shapes and sizes and speed up the harvesting of both worms and worm castings dramatically.

The machine helps to separate large volumes of worm castings, worm food and worms in a very short time. What essentially happens is that you throw worm rich bedding into the opening on the upper side of the harvester that rotates continuously.

There are different kinds of mesh along the cylindrical body of the harvester that will allow the castings, bedding, cocoons and small worms to fall through the holes into holding containers below the machine, while the large worms will travel down to the end of the machine where they can be easily harvested.

Our home made harvesting machine

What does a worm harvester do?

In this way you are actually harvesting worms and worm castings at the same time.

Because worms strongly dislike sunlight which can kill them in just a few minutes if they get exposed to it without a way of hiding away it is best to harvest worms and worm castings either in a shaded area or on days with moderate themperatures and overcast skies.

There are quite a few suppliers offering these harvesters especially in the United States, but the cost for one machine is at least $3000 (excluding transport).

I believe a worm harvesting machine is not needed for success when starting out, so don’t worry if you cannot afford one of these machines right now. You can run your worm farm or your worm business without one for quite some time.

If you want one of those machines but would like to save on costs, try to build one yourself or ask a friend to assist you. We built our machine ourselves and it definitely saved us a nice sum of money.

For more worm compost related information!

Type your question or keywords (for example “earthworm”) into the search box below.

Worm farming a sustainable business


Return to the home page


How to harvest worm castings from a 3 bin worm farm


Benefits of worm farming


Bokashi composting

New! Comments

Have your say about what you just read! Leave me a comment in the box below.


How to make

$ -MONEY - $

with earthworms! 

The Book 

"How to start a profitable worm business on a shoestring budget 

Order a printed copy from "Amazon"  for


or a digital version from the "Kindle" store at the SPECIAL PRICE of only


How worms recycle human manure

Disclaimer: The link to the worm farm is my affiliate link. Meaning, I will get a small commission at no extra cost to you, should you purchase the product through my affiliate link.

Recent Articles

  1. europian night crawler

    Aug 10, 18 03:37 AM


    Read More

  2. Earthworm farming

    Aug 08, 18 11:53 AM

    Earthworm farming is the implementation of different procedures that will assist to convert large volumes of organic waste materials, grow huge amounts of earthworms

    Read More

  3. Eisenia fetida supply

    Aug 08, 18 06:28 AM

    Hi there,Firstly, congratulations on your your book - it's really insightful! I was just wondering whether it is possible to obtain some Eisenia fetida

    Read More

Use worms

against climate change

Wurmzucht gegen den Klimawandel

Recycling food waste with earthworms

Recycling von Essensresten

Start a worm business without having to buy worms

My book below explains in detail how to make money with earthworms!

Find out what actual customers had to say about the book

Dealing with Maggots in a worm farm

Your Questions about worm composting?

Do you have any questions or suggestions about worm composting?

This is the place where you can interact with us and other worm composting friends!

[ ? ]

Here yu can upload 1-4 Pictures or Graphics (optional)[ ? ]


Click here to upload more images (optional)

Author Information (optional)

To receive credit as the author, enter your information below.

(first or full name)

(e.g., City, State, Country)

Submit Your Contribution

  •  submission guidelines.

(You can preview and edit on the next page)