Composting Containers

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Composting Containers for Earthworms

For Vermi composting at home, you have a wide choice of materials, each with its advantages and disadvantages. They may be made of old plastic containers, wood, polystyrene, or metal containers. The design of a small bin usually depends on size, where the bin will reside (indoors or outdoors), and how the earthworms are to be fed. In addition there are a number of commercially available worm bins, most made from a plastic product.

Composting Containers

Some materials are less desirable than others in worm bin construction. Some wood products like cedar and redwood, while rot resistant, contain resinous oils that may harm earthworms. Other wood products are inexpensive, but will absorb moisture and odors, but will eventually decay and need to be replaced.

Metal containers often conduct heat too readily, are prone to rusting, and may release heavy metals into the Vermi compost. Worm compost bins made from recycled or semi-recycled plastic are ideal, but require more drainage than wooden ones because they are non-absorbent. This is why most commercial worm bins are plastic.