Ep 2. Question by Blair: Why does Heinz Cream of Tomato Soup take longer to microwave than Heinz Ravioli? (According to the recommended times) Ravioli is meat rapped in pasta with a soupy sort of sauce so it’s been puzzling me for months why Heinz soup- which is basically the sauce without the ravioli- has a longer recommended microwave time. Best answer: Answer by Been ThereSolids are more dense than fluids. Ravioli is a solid, soup is a fluid. Microwaves heat food by causing the atoms to vibrate, thus generating heat. The closer the atoms… Read Article →