Worm Composting (Vermicomposting)
Everything you need to know about turning kitchen scraps into nutrient-rich castings with red wigglers.
Start Here
If you're new to worm composting, start with the beginner checklist. It walks you through choosing a bin, setting up bedding, introducing your worms, and feeding them their first meal.
🐛 Beginner's Checklist
Your complete step-by-step guide to setting up a worm bin from scratch. Covers bin selection, bedding prep, worm introduction, and the first month of feeding.
Checklist🌿 Pre-Compost for Worm Bins
Learn how to pre-compost food scraps before adding them to your worm bin. This reduces odors and makes feeding easier.
ChecklistDeep Dive Articles
These articles go into the specifics of worm care, feeding, and troubleshooting. Each one builds on what you learn in the beginner guide.
- → Best Bedding Materials for Worm Bins — compare shredded paper, coconut coir, aged leaves and more
- → What Not to Feed Worms — complete list of forbidden foods that harm red wigglers
- → Preventing Fruit Flies in Your Worm Bin — practical tips for keeping pests out
- → Harvesting Castings — when and how to collect your finished worm castings
Gear & Products for Worm Composting
I've tested dozens of worm bins, bedding materials, and feeding tools. Here are the ones I recommend based on real-world use.
🪱 Worm Bins
Stacking trays, single-tier bins, and DIY options compared. Find the right size for your kitchen or yard.
Gear📰 Bedding Materials
Coconut coir blocks, shredded newspaper, cardboard — which works best and where to buy it.
Gear🍽️ Feeding Tools
Burial tools, feeding trays, and worm grinders that make daily feeding easier.
Gear🥄 Harvesting Tools
Screens, sifters, and collection trays for pulling castings from your bin.
GearTroubleshooting Common Problems
If your worm bin is acting up, these are the most common issues and how to fix them.
- → Fruit flies swarming around the bin — causes and fixes
- → Bad smell from worm bin — usually means overfeeding or too much moisture
- → Worms trying to escape through ventilation holes — pH imbalance or temperature issue
- → Food sitting on top without breaking down — check moisture and worm population
Need more help? Check out the full Troubleshooting Hub for a complete list of common worm bin problems and solutions.
Quick Reference: Worm Composting Basics
| Topic | Key Point |
|---|---|
| Best worms | Red Wigglers (Eisenia fetida) — not earthworms from the garden |
| Bin size | Start with 2 sq ft of surface area per person in your household |
| Feeding rate | About half a pound of scraps per week for every pound of worms |
| Bedding depth | 4–6 inches of moist, shredded material (newspaper, coconut coir, leaves) |
| Harvest cycle | Every 3–6 months depending on bin size and worm population |
Want to go deeper? Read the full Worm Composting Guide for a complete walkthrough from setup to harvest.