If it is a dry area in the north, beef jerky can be preserved for about 2 months if it is properly preserved. If it is in the south, it is best to air-dry beef jerky before storing it. The method of air-drying is to open a paper bag or plastic bag containing beef jerky to air-dry, which can be stored for 1 month, but it should be observed at any time. This method is not suitable for the south of the supermarket. If you are in the south, you can put the beef jerky in a fresh-keeping bag, clamp the mouth of the bag with a snack clip and eat it within one month. When the weather is too hot, it is best to ensure that the beef jerky has no excess water and put it in the refrigerator for freezing, but in this case, it cannot be kept for too long.