For ambiguous condiments like ketchup, it is best to check the label first. Soy sauce is a representative shelf-stable food due to fermentation and high salt content. pexels When you open the refrigerator, the door shelf is filled with large and small condiment bottles including ketchup, soy sauce, vinegar, and hot sauce. However, you don't have to habitually put all your seasonings in the refrigerator. Surprisingly, there are seasonings that can be stored at room temperature. Vinegar, salt, and fermentation ingredients contain bacteria...