Higher aseptic requirements: The production of sterile milk requires a stricter aseptic environment and more complex sterilization equipment, such as ultra-high temperature instantaneous sterilization (UHT) equipment, to ensure that the milk can be stored for a long time at room temperature. While acidic juices have a relatively lower requirement for sterility due to their inherently acidic environment, the sterilization equipment and processes are relatively simpler.
Packaging material cost: The packaging materials for sterile milk need to have better barrier properties to prevent the influence of air and light on the quality of the milk. Usually, multi-layer composite materials are used, which is relatively expensive. While the packaging materials for acidic juices are relatively simple and have lower costs.
Equipment complexity: The sterile milk production line is usually equipped with more advanced automated systems and quality control equipment, such as robot picking and placing systems, conveyor belts, vision systems, etc., to achieve full automation of bottle blank processing, heating, blow molding, cooling, quality inspection, etc., to increase production speed and output, and reduce labor costs and human errors. While the automation level of the acidic juice production line is relatively lower, and the equipment structure is relatively simpler.
Maintenance and maintenance costs: The sterile milk production line has a complex structure and requires regular maintenance and upkeep to ensure its normal operation, which increases maintenance costs. While the maintenance and upkeep of the acidic juice production line are relatively simple and have lower costs.