Question

Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling. Give reasons for the following.

Answer 1

Fresh milk:

1. Fresh milk must be boiled in order to destroy any harmful microorganisms that may be present.
2. While processed milk has been pasteurized, making it safe to consume straight.
3. Pasteurized milk is boiled at 70 degrees Celsius and then suddenly cooled.
4. All the bacteria die during this process, making the milk safe to consume.
5. Before it is packed and sent to grocery shops, dairy milk undergoes a quick heating and cooling procedure to make it safe to consume.