Science, asked by aditipovale, 1 month ago

how is milk pasteurized?​

Answers

Answered by Aakashkanojiya
1

Answer:

The process of pasteurisation involves heating milk to 71.7°C for at least 15 seconds (and no more than 25 seconds). ... Once the milk has been heated, it is then cooled very quickly to less than 3°C. The equipment which is used to heat and cool the milk is called a 'heat exchanger'.

Answered by riya45267
18

Answer:

The process of pasteurisation involves heating milk to 71.7°C for at least 15 seconds (and no more than 25 seconds). ... Once the milk has been heated, it is then cooled very quickly to less than 3°C. The equipment which is used to heat and cool the milk is called a 'heat exchanger'.

Explanation:

In most milk processing plants, chilled raw milk is heated by passing it between heated stainless steel plates until it reaches 161° F. It’s then held at that temperature for at least 15 seconds before it’s quickly cooled back to its original temperature of 39° F.

Here’s the “cool” part: One way the dairy industry saves energy involves using the heat of the heated pasteurized milk to warm the next batch of cold raw milk. Cold milk is then used to cool the heated pasteurized milk. By doing this, the industry uses heating and refrigeration energy more efficiently during the milk pasteurization process.

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