Abstract
There has been an increase in the use of microwave ovens for cooking foods. Their use results in a considerable reduction in cooking time over conventional ovens. A study was made of 187 commercial use ovens to determine the extent of leakage of microwave radiation. Twenty percent were found to leak 10 or more mw/cm2 within two inches at the perimeter of the closed oven door. There is concern about this leakage, particularly because of the increased use of these ovens in the home. There is a need for an improved door design to minimize leakage. Improved safety interlocks are needed also in some models to assure cut off of microwave radiation while the door is being opened.