Latest Answer: A bin can be constructed of untreated, non aromatic wood, or plastic container. If a plastic container is used, it should be thoroughly washed and rinsed before the worms and bedding are added.Size of the container depends on amount of waste produced. The worms need bedding material to burrow and to bury the solid waste. Suitable materials include shredded paper, composted animal manure, decaying leaves, peat moss.The bedding must be kept moist to enable the worms to breathe. You will need about 1 1/2 to 2 1/4 gallons of water for 4 to 6 pounds of bedding. Only red worms which are composting worms should be used.Feed the worms any non fatty organic kitchen wastes such as vegetables, fruits, eggshells, tea bags, coffee grounds, paper coffee filters, and shredded garden waste. Last but not the least, maintain proper temperature for the survival of the worms.