Successful worm composting depends upon what you bury and the environment you provide for the worms. You can use any vegetable waste or spoiled foods, as long as they do not contain animal products. A worm bin is a great place for those spoiled fruits and vegetables that have been in the refrigerator too long. Coffee grounds and tea bags also work well. Adding scraps twice a week works well, but rotate where you bury your garbage.
Some people recoil at the idea of keeping worms in the house, under the sink, for example.
The garage, away from extreme heat or cold, is a good alternative. The redworms will be most active at temperatures around 70 degrees, but they will survive at much higher or lower temperatures. Harvesting is the process of separating the worms from the compost. Under bright light, lay the contents of the bin on a large sheet of plastic. Then, separate the compost into small piles.