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प्रश्न
How is milk pasteurized?
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उत्तर
Milk is pasteurised in order to kill any kind of harmful microorganism present in it and to increase its shelf life. Pasteurisation is a process in which the milk is heated to a certain temperature for a fixed period of time and then is quickly cooled. For example, it may be heated at 80°C for 15 minutes and then immediately cooled. This helps to kill any kind of microorganism which is present in milk.
संबंधित प्रश्न
Look at the pictures given below. Which one is good for health? Why?
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World Hunger Day is observed on _____.
What is meant by the preservation of food?
Give reason for the following.
Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling.
Give reason for the following.
Raw vegetables and fruits are kept in refrigerators, whereas jams and pickles can be kept outside.
______ is a natural preservative used to increase the shelf life of fruit juices/squash.
The synthetic preservatives do not delay microbial growth and do not keep the food safe for long-duration.
Why is food preserved?
What shall we do?
A ‘pani-puriwala’ is serving the panipuri with dirty hands.
Give reason.
Food remains safe at 5° Celsius.
