Worm bins are a wonderful way to try out composting on a small scale. Worm bins are easy to create and maintain. They work as a great project for young kids. Worm bins work to reduce kitchen waste, turning food scraps into fertile soil that can be used in the yard and garden.

Supplies

For this project, you will need the following supplies. The amount of materials needed will vary depending on the size of tote.

- A plastic tote box any size

- A knife, or another sharp tool

- Thick cardboard (egg cartons also work well)

- Infertile soil

- Potting soil

- Worms

- Kitchen scraps

- Newspaper or thin cardboard

- Sand (optional)

Step 1: Prepare the Bin

With parent’s supervision, use a knife or other sharp object to poke breathing holes in the lid of the tote.

CAUTION always keep blades away from fingers and body.

Step 2: Add 3 Layers of Material to the Bin

Layer 1.

On the bottom of the tote, place a layer of cardboard 1-2 inches deep, egg cartons work well for this.

Layer 2.
Place an even layer of outdoor infertile soil over the cardboard about 1-2 inches deep. This can be dirt that is bad for gardening. There can be rocks but not too many and not too large.

Note: if the soil is chalky, add a thin layer of sand on top.

Layer 3.
Add a layer of potting soil 1 inch deep. This is the starting place for the worms.

Step 3: Add Worms

Gently add worms to the potting soil.

Quickly cover them with dirt since they are sensitive to light.

Step 4: Add Kitchen Scraps to the Top Layer

Kitchen scraps include but are not limited to

- lettuce

- mushrooms

- potatoes

- carrots

- most paper packaging

Cover the kitchen scraps with a top layer of dry material. Newspaper or thin cardboard is
recommended for this step, though you may instead use dry leaves, or infertile or potting soil.

Note: avoid putting fruit and meats within the worm bin as they attract flies and begin to smell while breaking down.

Step 5: Store the Worm Bin Indoors

The worm bin should be stored with the lid on in a cool location out of direct sunlight.

Some ideal locations are under the sink, within a closet, garage, or in a basement.

Step 6: Check on the Bin Regularly

Add more kitchen scraps, removing the top layer if you used cardboard. Give the bin a quick stir without disturbing the bottom layer of the bin. Replace the cardboard top layer if it is soggy or moldy.

Add water sparingly and only when the dirt is thoroughly dry.

Baby worms should soon appear within the worm bin. Worm population within the bin should double every 4-6 months.

Note: if the top layer is soggy, or condensation builds on the walls, remove the lid for a few hours.