200 grams Dehydrated koji sheets (1 bag with koji spores)
60 grams Coarse salt
1 enough to cover Water
Instructions
Crumble the dehydrated koji sheets into a plastic container with a lid.
Mix in the coarse salt.
Add enough water to cover the koji, and mix well.
The dehydrated koji absorbs a lot of water, so check on it after a few hours.
If it has swelled and absorbed all the moisture, add a little more water.
Cover with the container lid, and leave out at room temperature for 5 to 7 days.
Mix it up well with a spoon at least once a day.
When the koji grains have broken down, become creamy, and smells like fermented koji with a nice light brown color, it means the shio-koji has matured.