Question

How to preserve milk​

Answer 1

Explanation:

It can be done by freezing or adding Lemon juice.

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Answer 2

Question:-

How to preserve milk

Answer:-

Milk is almost sterile when secreted from a healthy udder. The natural inhibitors in milk (e.g., lactoferrin and lactoperoxidase) prevent significant rises in bacterial numbers for the first three to four hours after milking, at ambient temperatures. Cooling to 4 °C within this period maintains the original quality of the milk and is the method of choice for ensuring good-quality milk for processing and consumption. Cooling can be achieved by mechanical refrigeration or cooling tanks. Cooling facilities are expensive for small-scale producers in developing countries and can usually be afforded by only large-scale dairy enterprises. However, in areas with high concentrations of small-scale dairy operations, milk cooling centres can represent a valid solution for cooperatives of small-scale producers.

In some parts of developing countries, refrigeration is not feasible because of the high initial investment and running costs and technical problems, including the lack or unreliability of an electricity supply.