Industrial computers (PLCs) for koji, natto, etc.

From time to time, I’ll hear about someone putting together an incubation room for growing koji. By now, most folks have realized that importing Japanese equipment is either too costly or too complicated.And so, the only viable option is to make o...

In industry, Aug 30, 2023

Quorn™: a story about Single Cell Protein

What if you could make food out of just basic chemicals and microbes? At a first glance, this seems like a great idea since microrgan...

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Industrial computers (PLCs) for koji, natto, etc.

From time to time, I’ll hear about someone putting together an incubation room for growing koji. By now, most folks have realized that importing Japanese equipment is either too costl...

In industry, Aug 30, 2023

I wrote a book on Natto

It was fun to write. Here are a few thoughts on natto, writing, and academia…

In industry, Apr 11, 2023

Quorn™: a story about Single Cell Protein

What if you could make food out of just basic chemicals and microbes? At a first glance, this seems like a great idea since microrganisms grow quickly, are thermodynamically efficient...

In industry, Jan 14, 2022

Design of the koji room (koji-muro)

I hope this post will provide a bit of guidance to anyone trying to build a koji room (also known as the koji muro or sei-kiku shitsu), especially as they scale up to the 50-1500kg/ba...

In koji, Sep 07, 2021

Flavourzyme: a purified enzyme mixture from A. oryzae

Flavourzyme™️ is a trademark name given to a mixture of refined proteolytic enzymes branded by Danish biotech company Novozymes A/S. It’s produced by the submerged fermentation of our...

In food, Jun 04, 2021

A bioreactor for everyone

When I first got started in fermentation, I was a bit lost. There’s no “how to learn fermentation 101” Medium articles, unfortunately. I think most people learn via their academic bac...

In bioreactor-project, Mar 08, 2021

The koji making process: temperature, mycelium, and moisture

Koji generates a considerable amount of heat as it grows - if you’ve ever made koji at home, it’s almost unsettling to feel the warmth of a koji cake. Controlling that heat, along wit...

In koji, Dec 16, 2020

Building a bioreactor, part 3: tracking growth rates in real time

Part of our bioreactor project depends on the ability to track microbial population sizes. If you read our last blog article, you’ll know that we measure the population size by the am...

In data-science, bioreactor-project, Nov 25, 2020

Building a bioreactor, part 2: Vessel and structure

The first part of building our bioreactor will focus on the container for the glass vial. The original designs for this are from another open-source project (and research article), “A...

In bioreactor-project, Oct 20, 2020

Temperature, water content, and polishing effects on koji

I always wondered if researchers had played around with koji growing parameters - turns out they have, and with a great level of detail in numerous studies. This post will be the firs...

In koji, Oct 10, 2020