Question

The packed food items like jams and pickles stay fresh far a longer period of time whereas the same food items when prepared at home do not stay fresh for long. think and answer why?

Answer 1

Answer:

The packed food items stay fresh for a longer time than the food prepared at home.

Explanation:

Because in case of a packed food it is tightly packed and is air tight .This limits the presence of air and moisture. This results in decrease in microbial growth.But the reverse happens in the case of the food prepared at home.