Best Bokashi Bins 2025

What Does a Bokashi Bin Do?

A Bokashi Bin is a compact, easy-to-use container designed for fermenting kitchen waste. Unlike traditional composting, which relies on aerobic decomposition, a Bokashi Bin uses anaerobic fermentation, a method that encourages the growth of beneficial microorganisms. These microorganisms break down food scraps and leftover organic matter, transforming them into a nutrient-rich composting material. The process creates a low-odour, pathogen-free mixture that can then be buried in soil or added to a traditional compost heap, enhancing the overall composting process.

How It Works

The Bokashi Bin works by layering kitchen waste with Bokashi bran, a mix of wheat bran infused with specific microorganisms. You simply add your food scraps, sprinkle the bran on top, and seal the bin. This environment creates a fermentation process, allowing food waste to break down in a compact space, producing a pickled nutrient mix ready for the soil. It’s a fast, efficient way to manage your organic waste without the mess of traditional composting.

Space-Saving and Efficient

Opting for a Bokashi Bin is ideal for those with limited space, as it requires less room than a conventional compost pile. It’s perfect for apartment dwellers or anyone wanting to manage kitchen waste in a neat, compact manner.

Odour-Free and Pest-Resistant

One of the standout advantages is the minimal smell; the sealed container controls odours that can be associated with decomposing food. Plus, the fermentation process deters pests, making it an attractive option for those concerned about critters getting into their kitchen waste.

Enhances Soil Health

Using the compost created from a Bokashi Bin adds valuable nutrients back into the soil. The fermented material enhances soil structure and provides essential nutrients, promoting healthy plant growth and improving the overall fertility of your garden.

Size and Capacity Considerations

When selecting a Bokashi Bin, consider how much kitchen waste your household generates. Smaller bins are suitable for individuals or small families, while larger bins work well for families that produce more waste. A good rule of thumb is to choose a size that allows you to manage your kitchen scraps without overflow.

Material and Build Quality

Look for a bin made from durable materials that will withstand the test of time. Plastic bins are common and generally effective, but ensure they are of a high quality that does not easily crack. A well-fitted lid that prevents air from entering the bin is also crucial for effective fermentation.

Ease of Use and Cleaning

Select a system that is easy to use and straightforward to clean. Some bins come with a tap at the bottom for draining excess liquid, while others may be simpler but require more maintenance. Choose the style that fits your preferences for ease and convenience.

Gather Your Materials

To start composting using a Bokashi Bin, you’ll need your bin, Bokashi bran, and kitchen scraps such as fruit and vegetable peelings, coffee grounds, and small amounts of cooked food. Avoid using large bones or liquids as they can hinder the fermentation process.

Layering the Ingredients

Begin by adding a layer of kitchen waste to the bottom of the bin, then sprinkle a thin layer of Bokashi bran over the waste. It’s important to ensure each layer is well covered with the bran. Repeat this layering process until the bin is full.

Sealing the Bin

Once filled, seal the bin with its lid to create an anaerobic environment. Be sure to compress the contents lightly to eliminate air pockets. This step is essential for successful fermentation. Store the bin in a dark, cool place to encourage the enzymatic activity and fermentation processes.

Regularly Add Bokashi Bran

To maximise the efficiency of your system, make a habit of adding Bokashi bran whenever you introduce new kitchen waste. This helps maintain the right balance of microorganisms, enhancing the fermentation process.

Draining Liquid Regularly

If your bin has a tap, drain off the liquid that collects at the bottom every few days. This liquid, known as Bokashi tea, is a potent fertiliser that can be diluted with water and used on houseplants or in your garden.

Burying the Fermented Waste

After two weeks of fermentation, your Bokashi contents are ready for burial in the soil. Choose a spot in your garden and dig a hole to soil it. The compostable material will break down further in the earth, enriching your garden soil. Make sure to cover it well to avoid attracting pests.