Preservation
Freshly milked milk is at a temperature highly conducive to rapid microbial proliferation; the cooling tank quickly lowers the temperature to around 4°C, effectively inhibiting microbial growth and reproduction, thereby significantly extending the milk's shelf life and ensuring its quality.

Storage
Serving as a reliable temporary storage vessel, it maintains a stable low-temperature environment throughout the milk collection and transport process, greatly facilitating subsequent centralized processing and transportation.

Ensuring Consistent Quality
By providing a continuous and stable low-temperature environment, it significantly minimizes changes in the milk's composition, thereby ensuring consistent and stable quality across different batches.