A microwave oven, or a microwave, is a kitchen appliance that cooks or heats food by dielectric heating. This is accomplished by using microwave radiation to heat water and other polarized molecules within the food. This excitation is fairly uniform, leading to food being more evenly heated throughout (except in thick objects) than generally occurs in other cooking techniques.
Up-timer and entrepreneur Guffy Pomeroy attempted to make microwave ovens, but was electrocuted while working on his ill-advised project. Pomeroy's death immediately produced some jitters in Grantville's fledgling stock market as some investors had invested in the microwave business.