Reusing Oil

Can oil be reused after frying and, if so, how many times can it be reused before it should be discarded? —A.M., Calgary, Alberta

We do not recommend reusing cooking oil since both quality and flavor are compromised once the oil has been heated. Also, tiny food particles may be released, causing off-flavors and a darker crust in the foods being cooked. Straining oil does not always remove these particles.