Which of the following is an example of perishable foods that CANNOT be stored for more than a day or two at room temperature, i.e., they have a shelf life of 1 or 2 days?
Milk
The correct answer is Milk.
Its high perishability requires refrigeration to extend its shelf life. Refrigeration slows down microbial growth, while methods like pasteurization (heating milk to kill harmful bacteria) further reduce the initial microbial load. Freezing stops microbial growth entirely, allowing for long-term storage. Drying, canning, and vacuum sealing are common methods for making foods less perishable by reducing water activity or preventing exposure to air.
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