Personally, I feel that these are some of KFC's special delicacies, while others like to eat Qi Zhen shrimp burger and cod sticks (personal preference). Beef tenderloin is also one of the rare and particularly spicy things in KFC. Most people in China like Sichuan food. The sales of beef tenderloin should be very good, but if it is sold for a long time, it will lose its freshness and the sales will continue to decline. Moreover, KFC will also launch new products, so beef tenderloin will be sold for some time. After the heat has passed, some new products (such as black hamburgers) will be pushed off the shelves, and new products will be tested later. But to be honest, I personally think that the new products produced by KFC in recent years are a bit, and, um, I personally like them.