Keep in the refrigerator for three days. Unused sukiyaki sauce can be poured into a container after cooling and stored in the refrigerator for three days. Sukiyaki sauce is an essential condiment for making Japanese cuisine. The main ingredients of this condiment are Japanese soy sauce, mirin, sugar, etc. These ingredients are stir-fried in a pan. You can add water to stir-fry when stir-frying. Sukiyaki sauce can be used to make sukiyaki, stir-fry, and can also be used as hot pot soup base after dilution. It is very easy to use.