Question

It is reccommended to use air tight container for storing oil for long time

Answer 1

to stop oxidation and retardation of food, because oxidation makes the the food spoil and leads to food poisoning

Answer 2

you store oil in an air tight container for 3 reasons
1.oil oxidizes- it loses its flavour, can become rancid , may even lose it's cooking characteristics .
2.oil Can become contaminated with foreign objects/substances - dust , bugs , water
3. oil is really messy when it's spilled and a tight container helps avoid that.

hope it helps u
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