The shelf life of unopened dried beef jerky is usually between 6 and 12 months, but this range may vary depending on the brand, so it is recommended to refer to the labeling on the specific food package. Opened air-dried beef jerky has a relatively shorter shelf life due to its susceptibility to environmental factors such as air, humidity and temperature, and it is recommended to consume it within 2 to 3 days after opening the bag. It should be noted that the shelf life depends on a number of factors, including the curing and air-drying process, storage temperature and humidity, and the breathability of the packaging material. For example, yak jerky may last longer after air-drying due to its lower water content, but it is recommended to consume it within a month to ensure its taste. The shelf life of fully dried and semi-dried beef jerky, on the other hand, is about one month and one week, respectively.