Bokashi compost guide

How the Bokashi system works step by step

Bokashi is a smart and odor-free way to turn kitchen waste into nutrient-rich soil amendment and liquid fertilizer. Instead of classic composting, where the waste breaks down with oxygen, bokashi is based on fermentation without oxygen. This means the nutrients are largely preserved, and you can handle more types of kitchen waste than with traditional compost.

In short: Bokashi = airtight bucket + bokashi bran + kitchen waste. The result is fermented “pre-compost”, which is then quickly converted in soil.

This makes bokashi ideal for apartments, townhouses, and detached homes, because the process takes place in a closed container directly in the kitchen.


🌿 What is Bokashi, and how does it work?

Bokashi is a fermentation method where kitchen waste is acidified in an airtight environment. Instead of rotting, you get a controlled process that is typically more odor-free than regular “bucket compost” and at the same time quicker to get started with.

After fermentation, the material is not finished compost yet. It is a fermented mass that needs to go into soil (or a soil factory/compost) to be transformed into dark, crumbly soil.


🧩 What you need

  • Airtight bokashi container (preferably with a strainer and drain tap)
  • Bokashi bran (microorganisms that start the fermentation)
  • Kitchen waste (organic waste from cooking and meals)

💡 Tip: Two buckets make everyday life easier. Then one can stand and post-ferment while you fill the other.


Eddingtons 's compost bin in bamboo - natural

🪣 How the Bokashi process works step by step

1) Put food scraps in the container

You can use almost all organic kitchen waste: vegetables, fruit, coffee grounds, tea bags without plastic, bread, rice, pasta, and leftovers from the plate. Small amounts of meat and dairy can often work too, if you dose the bran and keep the bucket completely airtight.

2) Sprinkle bokashi bran on top

The bran contains microorganisms that start the fermentation and help keep the process stable. Sprinkle a thin layer each time you add waste to the bucket.

3) Press the waste down (minimize air)

The most important thing for a good result is to keep the process anaerobic (oxygen-free). Press the waste down lightly so there is as little air as possible in the container.

⚠️ Avoid air: Air is the typical cause of bad odor and “failed fermentation”. Keep the lid closed and press the waste down.

4) Drain bokashi juice regularly

During fermentation, a liquid forms (bokashi juice). It is drained via the tap and can be used as liquid fertilizer or for drains.

5) Post-fermentation

When the bucket is full, it typically needs to stand for about 14 days with the lid closed. After that, the contents are ready to go into soil, compost, or a “soil factory”, where it is quickly converted.


💧 What is bokashi juice?

Bokashi juice is a concentrated fermentation liquid with nutrients. It is strong, so it is typically used diluted.

Practical use:

  • Liquid fertilizer: Dilute about 1:200 and water at the roots.
  • Soil life: Use diluted juice to support microorganisms in soil and pots.
  • Drains: Use undiluted in drains and let it work (rinse later).

💡 Tip: Drain juice often (e.g., every 2–3 days). This keeps the process more stable and reduces the risk of odor.


✅ Benefits of Bokashi composting

  • Odor-free handling when the bucket is kept airtight
  • Less waste in the trash bin and fewer heavy trash bags
  • Fast and easy process year-round (also in winter)
  • Preserves nutrients better than much traditional composting
  • Provides both “pre-compost” and liquid fertilizer
  • Suitable for garden and pots

Bokashi Daily compost bin - Black

🌍 A sustainable choice in everyday life

With bokashi, you reduce food waste and turn it into something that benefits both plants and the environment. You get a simple nutrient cycle at home, without requiring a garden or large compost heaps. Once you have the routine, it is one of the most manageable ways to make everyday life more sustainable.


❓ Frequently asked questions

Is bokashi really odor-free?

Yes, when the container is airtight and the waste is pressed down. A slightly sour smell is normal, but a rotten odor often indicates too much air.

Can you put meat and dairy in bokashi?

Usually yes in small amounts, if you dose the bran and keep the bucket completely closed. Feel free to start with greens and ordinary food scraps if you are new.

How long does bokashi take?

Once the bucket is full, fermentation typically takes about 2 weeks. After that, the bokashi needs to go into soil/compost, where it turns into soil over the next weeks.

How often should you drain bokashi juice?

As a rule of thumb, every 2–3 days. It helps the process and reduces the risk of odor.

What do I do if bokashi smells?

This is often due to too much air or too little bran. Press the waste down, add a little extra bran, and keep the lid closed as much as possible.

What do I do with bokashi when the bucket is finished?

Bury it in the soil, put it in a compost pile, or use a soil factory. In soil it is often converted quickly, especially in warm periods.

Can bokashi be kept in an apartment?

Yes. Bokashi is well suited for indoor use because the process takes place in a closed bucket. Place it somewhere where you can easily drain liquid.

Can you use bokashi in pots and houseplants?

Yes, but it must first be mixed into soil and given time to convert. Do not use it directly against the roots before it has become soil.

How much bokashi bran should you use?

A thin layer with each addition is often enough. With very wet waste or if you add a little meat/dairy, you can increase the amount.

Does bokashi need to be buried, or can it go in the compost?

Both work. Burying often gives faster conversion, while compost/soil factory is practical if you do not want to dig.

Where should you store the bokashi bucket?

Place it in the kitchen or utility room, away from direct sun and strong heat, and so the tap is easy to access.

How quickly does it become soil?

In soil it can often be converted in a few weeks, depending on temperature and soil life. In cool periods it typically takes longer.

Developed by Kvaio