We use alcohol a lot in cooking, mostly for deglazing things and marinating things. The last batch (not shown, but here’s a prior experiment we tried) is close to running out, and buying alcohol through grocery delivery services is a bit complicated (I’m not sure if they just ask you if you’re 21, or if you have to slide the delivery person your driver’s license under the door and hope they don’t run off with it).
So I’m starting a new batch! I’m vaguely following these instructions.
After a week or so of fermenting, the koji sank, indicating (I hope) reduced density of the liquid due to increased alcohol content! Apparently rice takes longer for the yeast to ferment compared to simple carbohydrates, like sugar, so you’re supposed to let it go for several weeks in total.