Mengniu Zhenguo Granule has won three independent intellectual property patents in the world (including one prescription invention patent and two production technology patents), which shocked the global dairy market. There are several worldwide problems hidden behind the seemingly simple combination, and the preservation of real fruit in fresh milk at room temperature is the most critical issue. How to ensure that the fruit will not go bad after adding milk, the timing of adding fruit, the way of sterilization and packaging, the requirements of process equipment, accurate quantification, nutrition collocation, flavor fusion and so on. All these problems make it difficult to develop normal temperature dairy products containing real fruit particles.