How We Make Bokashi Bran on the Farm (and Why Dry Beats Damp)

July 11, 2026

by Wiggly Wigglers

How We Make Bokashi Bran on the Farm (and Why Dry Beats Damp)

Bokashi only works as well as the biology behind it — and that biology lives in the bran.

We’ve been making our own bokashi bran here on the farm for over 25 years, partly because we like to know exactly what’s going on, and partly because consistency really matters. When fermentation is predictable, bokashi behaves itself — in kitchens, compost heaps and on farms.


What bokashi bran actually does

Bokashi bran isn’t compost and it isn’t fertiliser.

5kg Bokashi Active Bran

It’s a carrier for beneficial microbes — mainly lactic acid bacteria and yeasts — which drive controlled anaerobic fermentation. When added to food waste, those microbes lower the pH, suppress the smelly ones, and stabilise nutrients before anything has a chance to rot.

That fermentation stage is the whole point.


How we make our bokashi bran here

The process itself isn’t complicated, but it is hands-on.

We start with a grain-based carrier - wheat bran, which goes into a paddle mixer along with the microbial inoculant and mollasses. Moisture matters, timing matters, and getting an even mix really matters — otherwise fermentation is patchy and unpredictable.

Once mixed, the material is sealed into silage bags so it can ferment properly, without oxygen. This is where the biology gets to work.

After fermentation, the bran is spread out on the grain store drying floor and allowed to dry thoroughly. On a good day, the whole yard smells faintly sweet and yeasty — a bit like a brewery crossed with a bakery. It’s one of those smells that tells you something’s gone right.


Why dry bokashi bran is better than damp

Drying isn’t an optional extra — it’s essential.

Properly dried bokashi bran:

  • keeps the microbes dormant but alive

  • stores safely and consistently

  • doesn’t continue fermenting in the bag

  • behaves predictably when used

We always say bokashi bran should be stored like biscuits. Keep it dry, keep it sealed, and it stays good. Let it get damp, and it goes soft and unreliable — just like a forgotten packet at the back of the cupboard.


Why we bother doing it this way

Because we use bokashi ourselves — in kitchens, composting systems and on the farm — we need it to behave consistently. Making and drying the bran properly means we know what we’re starting with every time.

It’s not about making claims.
It’s about making something that works.

Grab a Bag of Farm-Made Bokashi Bran here https://www.wigglywigglers.co.uk/collections/bokashi-active-bran

Back to blog

Search posts

Tags

Recent posts

🌱 Over the Compost Heap…

Feed the soil first. Everything else tends to queue up afterwards.

— A Wormsworth