Composting at home guide
How do I start composting at home — even in an apartment?
Projekt-Plan
Why: Different methods require different footprints and maintenance levels.
How:
- Measure your available space (under-sink, balcony, or countertop).
- Estimate your weekly food waste (e.g., 1kg vs 5kg).
- Decide if you want to handle meat and dairy (Bokashi) or just plant-based scraps (Worms).
Done when: You have a clear understanding of your constraints and needs.
Why: Choosing the right system prevents failure and unpleasant odors.
How:
- Bokashi: Best for small spaces and all food types (including meat/dairy). Requires anaerobic fermentation.
- Vermicomposting: Best for high-quality fertilizer. Uses Red Wiggler worms (Eisenia fetida).
- Electric Composter: Best for speed and zero-effort. Dries and grinds waste in <24 hours.
Done when: One specific method is chosen.
Why: This book is specifically tailored for urban dwellers and provides practical, small-space hacks.
How:
- Focus on the chapters regarding your chosen method (Bokashi or Worms).
- Take notes on troubleshooting common apartment issues like fruit flies or moisture balance.
Done when: You have finished the relevant chapters for your method.
Why: Standard bins leak odors; specialized systems ensure proper airflow or fermentation.
How:
- For Bokashi: Get a dual-bin system with a spigot to drain 'compost tea'.
- For Worms: Get a multi-tray vertical bin (e.g., 'Worm Factory 360' style) for easy harvesting.
- For Electric: Purchase a unit with replaceable carbon filters.
Done when: The bin system is unboxed and placed in its permanent location.
Why: Composting is a biological process that requires specific microbes or organisms to start.
How:
- Bokashi: Buy 'Bokashi Bran' (wheat bran inoculated with Effective Microorganisms/EM).
- Vermicomposting: Order 500-1000 'Red Wiggler' worms from a local breeder.
- Electric: Ensure you have the starter pellets or filters required for the first cycle.
Done when: Activators are on-hand and ready to use.
Why: Carbon (Browns) balances the nitrogen (Greens) in food scraps to prevent smells.
How:
- Shred non-glossy cardboard or newspaper into 1cm strips.
- If using worms, soak the bedding in water and wring it out until it feels like a damp sponge.
- Store a dry supply in a small container near your bin.
Done when: A 10-liter container is filled with prepared carbon material.
Why: Smaller surface area allows microbes and worms to process waste significantly faster.
How:
- Keep a dedicated cutting board for compostables.
- Avoid large chunks of broccoli stalks or melon rinds; dice them before adding to the bin.
Done when: All scraps added to the bin are consistently small.
Why: Bokashi is anaerobic; air pockets cause rot instead of fermentation.
How:
- Add 2-3cm of scraps to the bin.
- Sprinkle 1-2 tablespoons of Bokashi bran over the layer.
- Use a masher or plate to press the waste down firmly to remove air.
Done when: The bin is tightly packed with no visible air gaps.
Why: Excess liquid in Bokashi or Worm bins can become anaerobic and smell like rotten eggs.
How:
- Open the spigot at the bottom of the bin.
- Collect the liquid in a jar.
- Dilute 1:100 with water for houseplants or pour neat down drains to prevent clogs.
Done when: The liquid reservoir is empty.
Why: Bokashi 'pre-compost' is too acidic for direct planting and needs 2-4 weeks in soil to neutralize.
How:
- Take a plastic tote and add 5cm of old potting soil.
- Mix in the fermented Bokashi waste.
- Cover with another 5cm of soil and a loose lid.
Done when: The fermented waste is buried in the soil tote.
Why: Separates the nutrient-rich castings from the living worms without harming them.
How:
- Empty the bottom tray onto a tarp under a bright light.
- Form small mounds; worms will move to the center to avoid light.
- Scrape off the outer 'clean' castings and return the worms to the bin.
Done when: You have a bucket of pure worm castings and a fresh bin for the worms.
Why: Completes the sustainability loop by returning nutrients to your indoor garden.
How:
- Mix 1 part compost with 4 parts potting soil for repotting.
- Or 'top-dress' by spreading a 1cm layer on top of existing pots and watering it in.
Done when: All indoor plants have been fed with home-made compost.