How Does Microwave Wattage Change Cook Time?
Cook time scales inversely with wattage. A 700W unit typically needs 30-70% more time than the 1000-1200W reference used on packaging.
Microwave cook times scale inversely with wattage: a lower-wattage unit needs proportionally more time to deliver the same energy to food, and a higher-wattage unit needs less. Most packaged-food cook times are written for a reference wattage (often 1000-1200W); a 700W microwave typically needs roughly 30-70% more time for the same food, while a 1200W+ unit needs less — always check food temperature rather than trusting a box's default minutes on a different-wattage unit.