Fermentationculture Soy Sauce Koji Spores

This is a strain for soy sauce with strong protease activity. It is meant for long-term, dark shoyus. If you want to make a light shoyu, A. Sojae is better suited.
According to the producers, this strain takes three days to fully grow on the substrate (soy beans and wheat). However, the koji can be finished after 40 hours. To make 5 kg of substrate.