Homemade Worm Bins
Plastic storage bins make great worm bins! Ultraviolet
light is toxic to worms, so bins should be made from
an opaque material. Bins should be 8-14 inches
deep and have a snug fitting lid to keep out rodents. Drill
1/4 inch holes in the bottom and sides, 5-7 inches
apart, to provide ventilation and drainage. If you are using a utility
knife to make holes, cut out triangles ¼ inch
The rule of thumb for bin size is two square feet
of surface area per person, or one square foot of surface
area per pound of food wastes generated each week. Vegetarians
often find they need a bin with four square feet of
surface area per person.
Plastic bins keep compost moist. Add a layer
of shredded paper after each feeding to keep the bin
from getting too moist.
Wooden Worm Bins
can also make a worm bin out of plywood by downloading wood bin construction plans.
Commercial worm bins
Ready-made worm bins are available for purchase. Most manufactured
bins have approximately two square feet of surface
area, and can handle about one pound of food scraps
per week. Most people find that a manufactured
bin is sufficient for the food scraps of one person. Free
and reduced cost bins are available to Santa
Cruz County residents. You may also purchase
a manufactured worm bin from one of several local
and on-line retailers.
Getting Started with the Can-O-Worms
directions for using a Can-O-Worms.
How to Use Your Worm Factory
directions for using a Worm Factory.
You can add worms to
a backyard compost bin! Learn how to do it!
More Options for Composting with Worms