Arcing Arcing is the microwave term for sparks in the oven. Arcing is caused by:• the temperature probe staying in the oven but not inserted in the food.• the metal shelf being installed incorrectly and touching the microwavewalls.• metal or foil touching the side of the oven.• foil that is not molded to food (upturned edges act like antennas).• metal such as twist ties, poultry pins, gold-rimmed dishes.• recycled paper towels containing small metal pieces.Covering Covers hold in moisture, allow for more even heating and reduce cookingtime. Venting plastic wrap or covering with wax paper allows excess steamto escape.Shielding In a regular oven, you shield chicken breasts or baked foods to prevent over-browning. When microwaving, you use small strips of foil to shield thin parts,such as the tips of wings and legs on poultry, which would cook before largerparts.Standing Time When you cook with regular ovens, foods such as roasts or cakes are allowedto stand to finish cooking or to set. Standing time is especially important inmicrowave cooking. Note that a microwaved cake is not placed on a coolingrack.Venting After covering a dish with plastic wrap, you vent the plastic wrap by turningback one corner so excess steam can escape.TermDefinitionMicrowave Terms36Helpful InformationMicrowave Terms