by Massimo Maddaloni » Tue Mar 29, 2011 10:19 pm
Well, there are faster and easier ways but this is what I do. In brief, I "malt" part of the rice with Aspergillus oryzae making what's called Kome-koji. Then I "rot" part of the kome-koji with lactic acid bacteria (I use my homemade yoghurt) making the moto. Then mix steamed rice, water, kome-koji, moto and the yeast. I run most of the fermentation with lager yeast and at the end I boost with Montrachet wine yeast because lager yeast is sensitive to high levels of alcohol. I gauge the fermentation and I add more rice and, eventually, more kome-koji. All rice is soaked in water and steamed. I learned the hard way that boiling rice doesn't work. At the end of fermentation you end up with your sake and a gooey cake of unfermented ... stuff. Most of it, I believe, is the embryos. It tastes like sake and it must be very nutritious and it p$$&$ me off to throw it into the garbage. Because of the alcohol I am reluctant to feed it to wildlife. If you are interested in the exact procedure google "koji order center", the first link is where I get my mold.
Regards
Massimo
Massimo Maddaloni
No one knows more than all of us (quoted from Zulululu)