Cold noodle soup needs to be boiled in advance and then put in the refrigerator for refrigeration. Add rice vinegar, soy sauce, monosodium glutamate and Chili oil, mainly depending on the taste of the people who eat it. Cold noodle soup needs to be boiled in advance and then put in the refrigerator for refrigeration. Add rice vinegar, soy sauce, monosodium glutamate and Chili oil, mainly depending on the taste of the people who eat it. Cold noodle soup needs to be boiled in advance and then put in the refrigerator for refrigeration. Add rice vinegar, soy sauce, monosodium glutamate and Chili oil, mainly depending on the taste of the people who eat it. Cold noodle soup needs to be boiled in advance and then put in the refrigerator for refrigeration. Add rice vinegar, soy sauce, monosodium glutamate and Chili oil, mainly depending on the taste of the people who eat it. Cold noodle soup needs to be boiled in advance and then put in the refrigerator for refrigeration. Add rice vinegar, soy sauce, monosodium glutamate and Chili oil, mainly depending on the taste of the people who eat it.