Sushi Soy Sauce

Soy Sauce is made of refined North-east China yellow beans, which are selected, soaked and then steamed & boiled in high pressure. The steamed yellow beans are mixed with flour and yeast. The mixture will be sent to yeast groove for ventilated ferment. The above whole process will be monitored & controlled by automatic system and computer system. After 48 hours, the matured sauce yeast is gained. This sauce yeast will be put into sunning pot with salty water for hundred-day brewing. The whole brewing process is completely natural without any artificial temperature control.