Are you familiar with mustard sauce? Yes, people who have eaten Japanese cuisine must have eaten mustard sauce. Mustard sauce has played a big role in Japanese cuisine. Let us first understand the mustard sauce. Mustard sauce is a sauce made from mustard seeds or mustard tubers. It has a very pungent odor and a refreshing taste, which can cause everyone to have appetite. Mustard sauce is rich in vitamins, amino acids and trace elements, with analgesic meridians, sterilization, promote digestion and increase appetite and so on. Today, we taught us how to make mustard sauce with a mustard seed grinder.