2. If beef jerky has long hair after mildew and deterioration, it can't be eaten any more. Hairy and moldy beef jerky will produce a substance called aflatoxin, which will cause food poisoning. If people eat aflatoxin by mistake, it will damage human kidneys, and in severe cases, it will cause symptoms such as shock and poisoning.
The shelf life of beef jerky is generally about one month. If it is vacuum-packed beef jerky, the shelf life will be longer. It is suggested that beef jerky should be stored in a dry plastic bag in a ventilated and dry environment if it is inedible. Beef jerky can't be kept in the refrigerator, otherwise it will get damp and go bad.