How to Raise Composting Worms


Raising composting worms is a great way to ensure a supply of organic compost and fishing bait. Worm bins, the best environment in which to raise worms, can be purchased at local retailers or created at home from plastic bins or buckets. Raising worms requires regular attention to ensure proper ventilation, light levels, food supply, temperature control and moisture.

Raising worms

Step 1

Create a compost pile in the worm bin. While a soil or shredded newspaper base can be used, the food supply is much more important. Partially decomposed table scraps, especially those from non-processed and low-preservative foods are ideal. Wastes from dairy and meats should not be used.

Step 2

Drill holes in your worm bin (if homemade) to allow for air circulation and proper oxygen levels. Commercial bins will already have holes. Drill one-sixteenth-inch holes around the top edges and bottom edges of the bin approximately 1½ inches. Drill 30 evenly-spaced quarter-inch holes in the top of the container.

Step 3

Spray the compost bin contents, especially the bedding, regularly with water to keep the contents at a moisture level consistent with that of a sponge that has been wrung out. Check this daily, since worms get much of their moisture through their skin, and they can die quickly without moist surroundings.

Step 4

Keep the internal temperature at 59 degrees Fahrenheit. The best range for breeding is 59 to 68 degrees. Optimum growth occurs in temperatures around 77 degrees.

Step 5

Provide a half pound of organic waste per day for every pound of worms. Cut the waste into small pieces to hasten decomposition and help the worm's consume the waste.

Tips and Warnings

  • Do not puncture holes any bigger than 1/16 of an inch, or you may risk losing worms.

Things You'll Need

  • Compost
  • Worms
  • Water


  • Red Worm Composting
  • Raising Composing Worms
  • Worm Farming Secrets

Who Can Help

  • Worm Strategies
  • Worm Facts
Keywords: raising worms, worm bin, compost box

About this Author

Ken Black is a freelance writer and a staff writer for The Times Republican in Central Iowa. He has written extensively on a variety of topics, including business, politics, family life and travel.