Fried peanuts without salt or any seasoning, if cooked and cooled in a well-sealed food box, can be kept for a week. This refers to the fall and winter seasons. Summer and spring humidity is relatively high, if you put in the refrigerator can still shelf life of a week, if room temperature is best not more than 2 days. If not in a sealed box, summer shelf life 24 hours, fall and winter season shelf life 48 hours, provided that they are not in a humid environment.