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CompostingIntermediate10 min read

DIY Worm Bin with Kitchen Waste

By Urban Zero Garden TeamDecember 2024
DIY Worm Bin with Kitchen Waste

Vermicomposting uses red wiggler worms to break down organic waste faster than traditional composting. It's perfect for apartments and produces premium compost.

Why Worm Composting?

Worms can eat half their body weight daily, processing scraps into nutrient-rich castings. The process is odorless, compact, and produces liquid fertilizer (worm tea) as a bonus.

Building Your Bin

Use two stacked plastic bins with drainage holes. The top bin houses worms and scraps, while the bottom collects worm tea. Keep it between 15-25°C for optimal activity.

Caring for Your Worms

Feed them fruit and vegetable scraps, coffee grounds, and crushed eggshells. Avoid citrus, onions, and meat. Keep bedding moist and add fresh newspaper regularly.

What You'll Need

  • Two plastic storage bins (20-30 liters)
  • Red wiggler worms (500-1000 worms)
  • Shredded newspaper and cardboard
  • Drill for making holes
  • Small brick or spacer

Step-by-Step Instructions

1

Drill holes

Add air holes in top bin, drainage holes in bottom

2

Add bedding

Fill with moistened newspaper and cardboard

3

Introduce worms

Add worms and let them acclimate for 24 hours

4

Start feeding

Bury small amounts of scraps in different spots

5

Harvest castings

After 3-4 months, separate worms and use compost

Pro Tips

  • Start with small amounts of food and increase gradually
  • Worms don't like light - keep bin covered
  • If bin smells, add more brown materials
  • Harvest worm tea weekly for liquid fertilizer

Ready to get started?

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