barley koji - how far

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barley koji - how far

Postby terji on Thu Aug 29, 2019 2:41 pm

Hi,

was making barley koji for a while but always stopped it when it was nice and white. Recently I have read that sometimes people let it go to "flowering" phase where koji turns greenish-yellow. I have seen it starting on my last batch but did not let it go past just few grains.
Any experience with that?

thanks!
terji
 
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Re: barley koji - how far

Postby cerbu on Thu Aug 29, 2019 11:36 pm

barley has more minerals than rice so the same given strain tends to spore faster than on rice, no problem to have it greenish. Rolled rye is a good substrate too, slight nutty aroma, I let it greenish on purpose.
On legumes almost always it's turning green
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Re: barley koji - how far

Postby terji on Fri Aug 30, 2019 7:09 am

I have "barley" koji spores from https://www.fermentationculture.eu/shop/barley-koji/ here.
The growth usually starts very slowly but I guess it is because I cook the barley (no steamer here) and it takes some time to dry out a bit in incubator.

I usually soak for 30min then cook till transparent and then it goes straight into box. Should I leave it air-dry for a bit?

On the day 3 it is nice white and clustered together and that is where I usually stop it and drop into Miso. I will try to wait a bit longer this time!
terji
 
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Re: barley koji - how far

Postby cerbu on Fri Aug 30, 2019 7:43 am

I use a steaming basket https://www.youtube.com/watch?v=CFFKNuRLrrc in a pressure cooker , the water stays under and does not touch the grains , which are wrapped in cheese cloth, easy to remove. Yes, dry it a bit, and adjust the humidity by mixing in some roasted cooled flour with the spores , desintangle the grains several times during incubation to have the best level of enzymes
https://www.youtube.com/watch?v=HarBRM18kUY&t=52s
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Re: barley koji - how far

Postby terji on Sun Sep 01, 2019 9:19 am

This is koji after 48h in at around 33-35C. Smells sweet and starting to cluster...
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terji
 
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Re: barley koji - how far

Postby terji on Mon Sep 02, 2019 2:04 am

and now at 60h - this is usualy when I take it and make miso with it.

There is some green/yellow starting to appear I will give it another 12 and see...
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terji
 
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Re: barley koji - how far

Postby terji on Mon Sep 02, 2019 11:32 am

This is 72h - it is starting to flower but I do not have time so it goes straight into Miso today...
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