Soy sauce is prone to mold; in summer, it must be stored in an airtight container in a cool, dark place.
When taking medications for vascular or gastrointestinal diseases, avoid consuming dishes cooked with soy sauce to prevent side effects such as nausea and vomiting.
Moldy or spoiled soy sauce should not be eaten.
When taking medications such as phenoxylate or metronidazole for cardiovascular or gastrointestinal diseases, do not consume soy sauce, as this may cause side effects such as nausea and vomiting.
