Beginner's Guide to Composting at Home

Why Compost at Home?

Organic waste makes up 40–60% of Indian household waste. When it goes to landfill, it decomposes without oxygen and produces methane — a greenhouse gas 25 times more potent than CO2. Composting at home turns this waste into nutrient-rich soil conditioner for your garden, plants, or community green spaces.

Method 1: Bin Composting (Aerobic)

Best for: Homes with a small garden or balcony. Requires 2–4 months for finished compost.

What you need:

• A composting bin or a large plastic bucket with lid (₹500–₹1,500 online)
• A drill to make aeration holes
• A tray or plate to collect leachate
• Brown material (dry leaves, cardboard, paper) and green material (kitchen scraps)

Setup:

1. Drill 8–10 small holes in the bottom and sides of the bucket
2. Place the bucket on a tray to catch liquid
3. Start with a 2-inch layer of brown material
4. Add kitchen scraps (green layer), then cover with another brown layer
5. Repeat layering — the ratio should be roughly 2:1 brown to green

Maintenance:

• Stir the pile every 3–4 days to aerate
• Keep it moist like a wrung-out sponge
• If it smells, add more brown material
• If it is too dry, sprinkle water while stirring

Method 2: Vermicomposting (Using Worms)

Best for: Apartments with balconies. Faster than bin composting — 4–6 weeks for finished compost. Worms do the work for you.

What you need:

• A vermicompost bin (₹800–₹2,000) or a stackable tray system
• Red wiggler worms (Eisenia fetida) — available on Amazon or local nurseries, ₹300–₹500 for 500 worms
• Bedding (coconut coir, shredded newspaper)
• Kitchen scraps

Setup:

1. Line the bin with coconut coir bedding (soaked and squeezed)
2. Add worms on top of the bedding
3. Add a thin layer of kitchen scraps (bury it to prevent fruit flies)
4. Cover with a damp newspaper sheet and close the lid

Maintenance:

• Feed worms once every 3–4 days (not daily)
• Do not overfeed — if food remains uneaten, reduce quantity
• Keep bedding moist but not waterlogged
• Harvest compost from the bottom tray when full

What worms eat: Fruit and vegetable scraps, tea leaves, coffee grounds, crushed eggshells, bread, cooked rice (small amounts)

What worms do NOT eat: Citrus peels, onion, garlic, meat, dairy, oily food, spicy food

Method 3: Bokashi (Fermentation)

Best for: Apartment dwellers who want to compost ALL kitchen waste including meat, dairy, and cooked food. Takes 2–4 weeks for fermentation, then 2–4 weeks in soil.

What you need:

• A bokashi bucket with a tap (₹1,000–₹2,000)
• Bokashi bran (wheat bran inoculated with effective microorganisms — ₹300–₹500 per kg)

Process:

1. Add kitchen waste to the bucket
2. Sprinkle a handful of bokashi bran over each layer
3. Press down firmly to remove air
4. Drain the liquid (bokashi tea) every 2–3 days — dilute and use as plant feed
5. When the bucket is full, seal and leave for 2 weeks
6. Bury the fermented waste in soil — it will decompose in 2–4 weeks

Advantages: No odour, no flies, accepts all food waste including meat and dairy. Produces a liquid fertilizer as a byproduct.

Troubleshooting Common Problems

Problem	Cause	Solution
Bad smell	Too wet, not enough brown material	Add dry leaves or cardboard, stir
Fruit flies	Exposed food scraps	Bury scraps under brown material
Worms dying	Too hot or too cold	Move bin to shaded area; keep between 15–30°C
Ants in bin	Too dry	Moisten bedding
Compost too wet	Too much green material	Add more brown material, stop adding for a few days
Slow decomposition	Not enough aeration	Stir more frequently; shred materials smaller

Using Your Compost

Finished compost is dark, crumbly, and smells like earth. It takes 2–4 months for bin composting, 4–6 weeks for vermicomposting, or 4–6 weeks total for bokashi (including soil phase).

• Mix with garden soil in a 1:3 ratio for potting plants
• Use as top dressing for potted plants (1–2 cm layer)
• Brew compost tea (steep compost in water for 24 hours) for liquid fertilizer
• Apply to garden beds before planting

Key Takeaways

• Composting reduces household waste going to landfill by 40–60%
• Bin composting needs outdoor space; vermicomposting works on balconies; bokashi works indoors
• Vermicomposting is fastest (4–6 weeks) but cannot handle meat or dairy
• Bokashi is best for apartments — no smell, no flies, handles all food waste
• Never compost meat, dairy, or oily food in regular bin or vermicompost systems