Microwaves should be professionally cleaned every three to six months, depending on usage frequency. Regular cleaning is crucial to prevent the buildup of food splatters, grease, and bacteria that can affect the appliance’s performance and your health. Fussy Cleaning Services recommends more frequent cleaning if the microwave is used heavily, especially for cooking foods that splatter easily. Routine professional cleaning thoroughly removes residues and sanitizes the microwave, maintaining a hygienic cooking environment. This regular maintenance helps keep your microwave in top working condition and extends its lifespan.