Hot answers tagged koji
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 ...
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