It is Tosa vinegar and Tosa soy sauce. It is an assortment gift of seasoning basics, soy sauce (dark and light), and vinegar. Soda Bushi uses carefully selected Soda flakes from Tosashimizu City, which boasts 80% of the production volume of Japan, called "Autumn Mejika", which is just at the time of the fat. Soda bushi has a rich and umami broth and is known as an indispensable dashi in famous udon and soba restaurants. It is a moderate blend of domestic bonito flakes, which are known as fragrant dashi, and the aroma, richness, and umami of the dashi are well balanced. If the soy sauce and vinegar inside are low, if you add soy sauce and vinegar at home, about 10 times (about 1L) of dashi will continue to come out.