Transform your kitchen scraps into nutrient-rich compost and liquid fertilizer with this eco-friendly, dual-purpose composting method. Reduce landfill waste while enriching your garden soil—a win for the environment and your plants!
What You’ll Need
- Two buckets/containers: One with small drain holes (fits inside the other).
- A lid for the outer bucket (to keep pests out).
- A faucet (installed on the inner bucket for liquid collection).
- Compost or soil: Acts as a decomposition starter.
- Kitchen scraps: Veggie peels, eggshells, coffee grounds, etc.
- Phosphate-solubilizing bacteria (PSB): Enhances decomposition and reduces odor.
- 1.5-liter bottle: For mixing PSB solution.
- Mixing tool
Step-by-Step Composting System
1. Prepare the Buckets:
- Drill small drain holes in the inner bucket.
- Install a faucet 10 cm from the bottom of the inner bucket.
- Nestle the inner bucket into the outer bucket, leaving space for liquid collection.
2. Start Layering:
- Add a layer of kitchen waste to the inner bucket.
- Cover it with compost or soil to aid decomposition.
3. Add the PSB Solution:
- Mix 3 caps of PSB with 1.5 liters of water in a bottle.
- Pierce the cap for even distribution, shake well, and pour over the waste layers.
4. Initial Rest Period:
- Seal the inner bucket and let it sit for 7 days to kickstart decomposition.
5. Mix and Add More Waste:
- After 7 days, open the bucket, mix the contents, and add more waste.
- Repeat the layering and sealing process.
6. Repeat for 30 Days:
- Continue the 7-day cycle for three more iterations (total 30 days).
- Mix every 2–3 days to speed up decomposition.
7. Collect Liquid Fertilizer:
- After 30 days, open the faucet to harvest nutrient-rich liquid fertilizer.
- Keep the buckets sealed for ongoing composting.
8. Final Composting Phase:
- Let the contents sit undisturbed for another 30 days (total 60 days).
- By the end, the top bucket will contain rich compost, while the bottom bucket yields more liquid fertilizer.