The materials you need to start worm composting are simple and inexpensive:
- rubber bin 10-15 gallon
- air vents (see link)
- food scraps
This is how to set up your own worm composting bin.
1. Start with a 10-15 gallon opaque plastic tub. I would choose a dark color since you want to copy a natural "underground" habitat for the worms.
Next, you need to create ventilation. I bought these two inch vents here. To install them, trace the vent with a marker onto opposite sides of the bin near the top. Then, with a box cutting knife, cut an opening for the vents to slide through.
You can also drill holes in the lid and top portions of the side to provide oxygen to the worms and also to prevent any odors.
2. Next, you need worms. Be sure to only get "redworms" (Eisenia foetida) - not night crawlers or any other type of worms. You can obtain these from a bait shop, nurseries or an online commercial worm grower. A good ratio would be 1 pound of worms to a 2 foot by 2 foot bin.
3. Add about a handful or two of soil to add micro-organisms.
4. The next step is adding the bedding. This can be shredded newspaper or shredded cardboard. It can also be shredded, brown decaying leaves. Soak the bedding in water and then wring it out so its moist but not dripping wet.
add fresh bedding as needed