Question

food materials made by oil or always storage in closed container why​

Answer 1

Answer:

is recommended to use air tight container for storing oil for long time in order to avoid the problem of rancidity. Rancidity is the condition produced by aerial oxidation of fats and oils marked by unpleasant smell and taste.

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Answer 2

Answer:

Because if the food made by oil will be not kept in a closed container it will become rancid