Question

it is recommended to use air tight container for storing oil for long time

Answer 1

because it reduces oxidation of oil and hence protect it form get rancid ....
hope it is helpful

Answer 2

1. Air , heat , light affects the quality of edible oil, which deteriorate through oxidation (Rancidity).

2. The oxidation process is greatly enhanced when edible oil is stored in containers that are not air tight and in areas where oil is exposed to air, heat and light.

3. Hence, it is recommended to use air tight containers for storing oil for a long time to prevent it from getting oxidised.

Thanks!!