Made with lightly roasted wheat and with more salt than normal which slows the fermentation process. Mirin has also been added to the mixture. Usukuchi shoyu is lighter in colour and is used where a less strong flavour and lighter brown colour are desired. The salt content of Usukuchi shoyu is slightly higher than Koikuchi shoyu because of the extra salt used to slow fermentation. 
 
Ingredients:
Water, Soybeans, Wheat, Salt.