It is recommended to use air tight container for storing oil for long time.
Answers
Assuming you mean cooking oil, you store oil in an airtight container for three reasons: First, oil oxidizes— it loses its flavor, can become rancid, may even lose its cooking characteristics— viscosity, smoke point, &c. Second, oil can become contaminated with foreign objects/substances— dust, bugs, water, &c. Third, oil is really messy when it’s spilled, and a tight container helps avoid that.
Much of the same could be said for non-cooking oils. Granted, the flavor wouldn’t be an issue, but oxidation could affect the other properties that the oil needs to perform. Reasons two and three would also apply.
Answer:
Explanation:
(i) Air, heat and light affect the quality of edible oil, which deteriorates through oxidation (rancidity). (ii) The oxidation process is greatly enhanced when edible oils are stored in containers that are not air tight and in areas where oil is exposed to air, heat and light. (iii) Hence, it is recommended to use air tight containers for storing oil for long time, to prevent it from getting oxidised.