Bokashi Bran

What to Add to Your Bokashi Bin: A Comprehensive Guide

Recycle kitchen waste. Sustainable and zero waste living. Vegetable waste in recycling compost pot

Bokashi composting is an eco-friendly and efficient way to recycle organic waste and create nutrient-rich compost for your garden. It’s a Japanese method that uses a specialized container known as a Bokashi bin to ferment kitchen scraps and other organic materials. By adding the right ingredients to your Bokashi bin, you can ensure successful fermentation and a ready supply of rich, microbial compost for your plants.

  1. Kitchen Scraps

The foundation of a Bokashi bin is kitchen scraps. Almost any organic matter from your kitchen can be added, including fruit and vegetable peels, coffee grounds, tea bags, eggshells, and small amounts of cooked food. It’s essential to chop or cut these scraps into smaller pieces to accelerate the fermentation process. Avoid adding large, hard items like avocado pits, which may take longer to break down.

  1. Green Materials

To balance the carbon-to-nitrogen ratio in your Bokashi bin, add green materials. These include items like grass clippings, fresh leaves, and plant trimmings. Green materials provide essential nitrogen for the microorganisms involved in the fermentation process and help prevent an overly acidic environment.

  1. Brown Materials

Brown materials, such as shredded newspaper, cardboard, or dried leaves, can also be added to your Bokashi bin. These materials serve to absorb excess moisture, maintain a proper carbon-to-nitrogen balance, and prevent the bin from becoming too soggy. Tear the brown materials into small pieces for better integration.

1kg bokashi
Bokashi bucket
  1. Microbial Starter

A crucial component of Bokashi composting is the microbial starter, often called Bokashi bran or Bokashi accelerator. This mixture contains beneficial microorganisms, typically lactic acid bacteria, yeast, and phototrophic bacteria, that facilitate the fermentation process. Sprinkle a layer of microbial starter between each layer of organic waste to ensure efficient decomposition.

  1. Avoid Citrus and Meat

While many kitchen scraps are suitable for a Bokashi bin, there are some exceptions. Citrus peels and meat scraps are best avoided, as they can be too acidic or protein-rich, potentially disrupting the fermentation process. If you do add citrus, do so sparingly and chop it finely. Meat and dairy products should not be included to prevent unpleasant odors and potential pathogens.

  1. Limit Oils and Fats

High quantities of cooking oils and fats can hinder the fermentation process in your Bokashi bin. Limit the amount of oily residues you add, and consider blotting them with paper towels before inclusion.

  1. Maintain Proper Layering

For successful Bokashi composting, it’s crucial to layer your materials efficiently. Start with a layer of brown materials, then add a layer of kitchen scraps, followed by a layer of microbial starter. Continue this pattern until your Bokashi bin is full. The layering ensures even distribution of microorganisms and promotes thorough fermentation.

  1. Keep the Bin Airtight

After each layer, press the contents down firmly and ensure that the bin’s lid is sealed tightly. This airtight environment is essential for the anaerobic fermentation process to occur effectively. It prevents oxygen from entering and causing spoilage.

  1. Drain the Leachate

The fermentation process in a Bokashi bin produces a liquid called leachate. This liquid is nutrient-rich and can be diluted and used as a liquid fertilizer for your plants. It’s crucial to periodically drain the leachate from your Bokashi bin to prevent it from becoming too acidic.

Scraping food waste off a board

Bokashi composting is an excellent method for recycling organic waste and creating nutrient-rich compost for your garden. By adding the right ingredients to your Bokashi bin, you can ensure a successful fermentation process and produce high-quality compost. Remember to include a mix of kitchen scraps, green and brown materials, microbial starter, and to maintain proper layering while keeping the bin airtight. Avoid adding overly acidic or protein-rich materials, and periodically drain the leachate for an extra boost to your plants. With these guidelines, you’ll be on your way to producing fantastic, homemade compost with your Bokashi bin.