Question

the freshly collected cow's milk spoil within a hour but packet milk doesn't. Give reasons in simple words​

Answer 1

Answer:

The freshly collected cow's milk has some bacteria and that is why it gets spoiled in a few hours unless it is boiled and cooled. After boiling and cooling, the milk stays good for a few more hours. If boiled, cooled and kept in the fridge, it stays good for a few more days.