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Kome koji is usually prepared by adding commercially-purchased koji-kin to steamed rice and allowing it to grow. Is it possible to propagate the koji-kin by adding kome koji to steamed rice, allowing one to spend less money on koji-kin?

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up vote 3 down vote accepted

I just educated myself on this, and I found a description of the sake making process ( http://www.taylor-madeak.org/index.php/2008/10/17/growing-koji-for-homebrewing-sake?page=2 ).

They explicitly state that you can store the culture for next use. What they don't say is how fragile this culture is. But it sounds quite stable, so I guess you have to buy it the first time, but then you can reuse until it stops working.

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the answer is there on the next page (page 3) of the guide you cited. thanks! – jlovegren Jan 24 '13 at 23:32

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