A Visit to John Anderson's Worm Farm

June 28th, 2009

When I was up in Fort Collins for the Rocky Mountain Compost School, some classmates and I were able to get a tour of the facility of John Anderson (aka, ‘The Worm Man’). I was able to snap a few photos, and you can see most of them below.

View of entire operation

Here is a view of the entire Worm Man operation, including fridges, wormbulances, and windrows.

One windrow

Windrow containing worms. Notice the carpet covering the windrow, and the bales of hay.

Carpet covering windrow

Carpet covers all Johns windrows, preventing light from entering and moisture and smells from leaving.

Bales of hay preserve a windrow.

Protecting the windrows from freezing is key. John uses bales of hay to prevent the prevailing winds from stealing heat and moisture from the windrows.

Another open windrow

Here is a better shot of a windrow with the carpet pulled back. John is using a pitchfork to move some of the bedding to better show the redworms.

Worm pile

On the right is a pile of bedding and worms, covered in carpet. I believe the left is an uncovered pile of bedding.

Fridges containing worms

John uses fridges as a cheap, effective worm bin. They are almost water tight, insulate well, and hold a large number of worms.

Happy warm redworms

Here are some happy happy worms in the bowels of one of the modified refrigerators.

Fridge prepared for redworms

Fridge with plastic door present

Here is a fridge that John made early in his experimentation. You can see the plastic on the door was not removed, and it is starting to get squishy.

Back of redworm fridge

Large compost bin for preparing worm food

John hot composts a lot of his feedstock for the worms. He got these large square bins from an A/C company, and mounted them on an axis so he can rotate the compost.

Rotating the tumbler

Here you can see John rotating the tumbler, using rope and his truck. I wish I had gotten video!

Castings

John makes money selling castings as well as worms. He stores finished castings in these 55 gallon plastic drums.

Old farm equipment

This was a piece of old farm equipment that John had on his site. A classmate of mine is indicating how it could be used as a continuous flow harvester. You would scrape off the bottom of the worm bin periodicaly, getting most of the castings and few of the redworms.

Separating operation

John built a separator on an old gurney; here is his primary casting separation setup. Worms and castings and bedding are taken from the wheelbarrow and put into the upper end. The barrel is rotated and the worms and vermicompost fall to the lower end. Castings fall through the screen onto the tarp.

Open windrow

The wormbulance

The back of the ever popular Wormbulance.

Entry Filed under: Uncategorized

6 Comments Add your own

  • 1. Interview: Tips from an i&hellip  |  August 7th, 2009 at 5:14 pm

    [...] Cool.  I visited his worm farm in April and it is quite a place.  Did you buy the 5 gallon bucket?  If so, did you separate out the worms from the vermicompost [...]

  • 2. Worm bins for offices &la&hellip  |  December 15th, 2009 at 8:55 am

    [...] here in Colorado.  Just make sure the worms can escape into the ground and insulate.  You can see pictures of John’s worm windrows here, and they definitely survive the Fort Collins [...]

  • 3. Dan  |  May 29th, 2010 at 8:27 pm

    Hi I have a chest deep freezer.Do you have to put any holes in it?And if so how many and what size?.We are going to keep it outside in northern Indiana.And do you put any holes in the lid?.Thank’s Dan

  • 4. vermicomposting  |  June 11th, 2010 at 3:17 pm

    Hi Dan,

    I have never done a conversion of a fridge to a worm bin. Please contact John Anderson, at http://www.cowormman.com/ for information, as he has done a number of these.

    Dan

  • 5. matthew  |  November 28th, 2010 at 1:18 pm

    wow that is something.
    im researching continuous flow-thru designs in preparation for one at home.we produce 10/15 lbs a week of kitchen compost. i’d also be bringing home extra from coffee shop and a health/juice-bar .
    i LOVE the idea of recycling fridges/deep-freezers like this,rather than building new with wood(which will decompose as well)
    i wonder if the heating elements in them could be modified to keep the bins at optimal temps,by bypassing the compressors.

    found his site. cowormman.ORG not .com :)

  • 6. vermicomposting  |  March 1st, 2011 at 9:30 am

    Thanks for the note. There has been some drama around cowormman.com, so I’m glad John has a new site up.

Leave a Comment

Required

Required, hidden

Some HTML allowed:
<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Trackback this post  |  Subscribe to the comments via RSS Feed


Calendar

June 2009
M T W T F S S
« May   Jul »
1234567
891011121314
15161718192021
22232425262728
2930  

Tags

basics bedding bees blog book boulder boulder colorado business castings coffee colorado composting compost tea conference durango earthworms event experiment feedstock food scraps fort collins hair home vermicomposting home wormkeeping how to humanure internet resources interview john anderson large scale vermicomposting local information outdoor worm bin permaculture q&a redworms unconventional feedstock vermicomposting vermiculture video why keep worms winter worm keeping workshop worm bin worm castings worm source

Recent Comments

Archives

Links of Interest

Feeds

What's a feed? Using an RSS Reader like Bloglines or Google Reader, you can be notified of new posts, and read excerpts of Boulder Vermicomposting content, without having to visit the blog.

RSS Latest Questions from the_worm_bin