I started out making one vermicomposting bin for my office's charity auction. I made another for our break room.
The worm bin craze is catching on among my office mates and so far eight of these bins have found good homes. Worm composting is a great way to manage your food scraps indoors, especially in colder climates like mine where the outdoor compost pile isn't active during the winter months.
This particular bin is an 18 gallon storage tub with added ventilation tube and screened vent holes. It will process about 2 pounds of food per week into compost.
Thanks for the nice comments.
NerdyCrochetGal : Commercial worm bins can cost about as much as an outdoor composter. I took a plastic storage bin (It seems like Kmart has the least expensive ones where I live - well, I haven't checked at the other -mart b/c I don't go there) There are a few books on vermicomposting that you can check out and also a lot of online resources. I read "Worms Eat My Garbage" my Mary Appelhof (sp?) and checked a bunch of web sites. The site www.vermicomposters .com
is a community site full of composters willing to give good advice. (They also have a pretty cool map where you can add the location of your wom bin)
ANYWAY, (1) get your storage bin. 18 gallons is a good size, but if you want it to live under your counter, you might want a 12 gallon.
2. cut some lenghts of 3/4" PVC (for water or conduit, doesn't matter), and drill holes in the bin so the pvc will fit through. Push the lengths through and drill smalled holes in the PVC. This provides ventilation inside the compost. Try to space them out so you will have equal ventilation. Ex: divide the length of your bin by four, place the pvc that distance from each end.
3. Drill a few more big holes in the lid. This will ventilate the air space above the compost. Another style I made had a ridged lid so I put these holes near the top, but on the side of the bin.
4. Cut regular window screen to fit over the PVC opening and the lid vents. Hot glue the sreen over the holes. You need the screen to keep fruit flies out of your bin.
5. Check for other holes that may have already existed on your bin. Sometimes there are small holes in the handles. Seal those up with hot clue, duct tape, etc.
That's how I made my bin. There are many other styles, I've even seen pictures of some worm bags made out of fleece on a frame. Once you have your bin you can order your worms and get composting. Have fun!