by Jen Fong and Paula Hewitt
Once you have worms and a bin, follow these six easy stepsto set up a worm bin. Soon worms will be recycling food scrapsinto a healthy, nutrient-rich soil amendment called compost.
1- Acquire a bin. Reuse an old dresser drawer or fish tank,build a box out of wood or find/buy a plastic bin. The approximatesize is 16" x 24" x 8" or 10 gallons. Make surethe bin is clean by rinsing it with tap water to remove any residueswhich may be harmful to the worms. For wooden bins, line the bottomand sides with plastic (an old shower curtain or plastic garbagebag works well).
2- Prepare the bedding. Instead of soil, composting red wormslive in moist newspaper bedding. Like soil, newspaper strips provideair, water, and food for the worms.
- Using about 50 pages, tear newspaper into 1/2" to 1" strips. Avoid using colored print, which may be toxic to the worms.
- Place newspaper strips into a large plastic garbage bag or container. Add water until bedding feels like a damp sponge, moist but not dripping. Add dry strips if it gets too wet.
- Add the strips to the bin, making sure bedding is fluffy (not packed down) to provide air for the worms. Bin should be 3/4 full of wet newspaper strips.
- Sprinkle 2-4 cups of soil in bin, which introduces beneficial microorganisms. Gritty soil particles also aids the worms' digestive process. Potting soil, or soil from outdoors is fine.
3- Add the worms. Before adding the worms, find out how manyworms you are starting with. The easiest method is to weigh theworms. If you do not have access to a scale, determine the worms'volume. The amount of worms is important for knowing how muchfood to feed them and for record keeping.
4- Bury food scraps under bedding. Feed the worms fruit andvegetable scraps that would normally be thrown away, such as peels,rinds, cores, etc. Limit the amount of citrus fruits that youplace in the bin. NO MEATS, BONES, OILS OR DAIRY PRODUCTS.
- Cut or break food scraps into small pieces--the smaller, the better.
- Measure the amount of food. Feed worms approximately 3 times their weight per week. Monitor the bin every week to see if the worms are or are not eating the food. Adjust feeding levels accordingly. (If you start with one pound of worms, add 3 pounds of food per week.)
- Bury food scraps in the bin. Lift up bedding, add food scraps, then cover food with bedding.
5- Place a full sheet of dry newspaper on top of the bedding.This will help maintain the moisture balance, keep any possibleodors in the bin, and help prevent fruit flies from making a homein the bin. Replace this sheet frequently if fruit flies are present,or if bin gets too wet.
6- Cover and choose a spot for the bin. Cover the bin witha lid made of plastic, plywood or cloth, but leave the lid ajarso the bin receives some air. If desired, you may drill holesinto the bin. Place the bin away from windows and heaters.
FEED, WATER and FLUFF!!! To keep worms happy, feed them aboutonce a week. If bedding dries up, spray with water. (If beddinggets too wet, add dry newspaper strips.) Fluff up bedding oncea week so the worms get enough air.
©Jen Fong and Paula Hewitt
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Cornell Waste Management Institute © 1996
Department of Crop and Soil Sciences
Cornell University
Ithaca, NY 14853
607-255-1187
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