How is milk cooled?

Milk is cooled through a process called pasteurization, which involves heating it to a specific temperature to kill harmful bacteria, followed by rapid cooling. This is typically done using plate coolers or heat exchangers that transfer heat away from the milk efficiently. The milk is then stored in refrigerated tanks, maintaining a temperature below 4°C (39°F) to ensure freshness and safety for consumption. Additionally, some systems use chilled water or ice to expedite the cooling process immediately after milking.