The cost of raw materials for freeze-dried yogurt blocks is high. Yogurt itself is a high-quality dairy product, and its production needs high-quality milk or dairy products as raw materials. In the process of making freeze-dried yogurt blocks, it is necessary to freeze and freeze-dry yogurt, and these processing techniques will also increase the cost. The production process of freeze-dried yogurt blocks is relatively complicated. Freeze-drying technology is a special process to remove water from food, which needs to be treated with professional equipment and technology. The investment cost of these equipments and technologies is high, and many parameters such as temperature and humidity need to be controlled in the production process to ensure the quality and taste of products, which also increases the production cost. Freeze-dried yogurt blocks also need special conditions and facilities during transportation and storage to keep their freeze-dried state and quality stable. These additional requirements and costs will also lead to an increase in the price of products.