It is more likely to go wrong than not eating in a small workshop. For example, cooking oil is used when frying, and the meat for making beef jerky is the meat of dead cattle, and even other dead livestock are used as beef. When choosing air-dried beef, it is best to choose big brands, such as brands in the whole industrial chain, such as Horqin cattle industry air-dried beef, the supplier of beef in Horqin cattle industry Olympic Games and Asian Games, and the first enterprise certified as organic beef. Horqin cattle industry has a whole industrial chain from forage planting and processing, slaughtering and processing to deep processing.