This is a natural brewed soy sauce made using 100% domestic organic soybeans and wheat and fermented and matured over time.
The characters for the Japanese word "yuki", meaning organic, can also be interpreted as, "time needs to be given". It is said that Japanese organic food began with the idea that "no lives exist without time".
At Daitoku Shoyu, they don't shorten their brewing process by adding cultivated micro-organisms or through heating. They protect and will never change the traditional manufacturing / natural brewing method that allows the micro-organisms that settle in the beverage to help create a soy sauce with the seasons. This comes from their belief that true soy sauce is created by microorganisms that are favored by the climate of their region with their own pace of life.