Simple worm bin

For this inexpensive project, we need: 3 similar 5 gallon plastic buckets with lids, so to stack perfectly.

  1. In 2 of the buckets drill a bunch of 3/16 inch holes in the bottom, about 1″ apart.
  2. Drill a line of 1/8 inch holes near the top of each bucket for air flow, so the bins don’t get too wet.
  3. Drill a bunch of 1/8 inch holes on the lid, for added aeration.
  4. Stack one of these buckets on 3rd bucket, which doesn’t have holes and lid. Add 3-4″ of moistened shredded newspaper or cardboard for bed, add some food scraps.
  5. Put the lid on the bin, let the worms do their thing. Add food as often as you need to.
  6. Once the contents of this layer start getting broken down, stack the next bucket, add bedding and food, place the lid.
  7. Worms will start migrating up to the top bucket for fresh food and bedding, and, after a couple of weeks to ensure that most of them have moved to the top bin, harvest the vermicompost from the middle bucket. Keep repeating the process as levels get full.
  8. 3rd bucket is to catch any moisture from the 2 bins. Fertilize plants with this ‘vermicompost tea’.