system
Given the following post, respond as if you're commenting on Reddit:
human
Why does food you heat up in the microwave cool down faster than food you heat up in an oven?

Is this real life? I've noticed that food, say a slice of pizza, can be just as hot coming out of the microwave as out of the oven, but it cools down in what feels like a few minutes, where the pizza out of the oven would stay hot much longer. I can tell because I can start eating the microwaved pizza without burning my mouth much sooner than if it came out of an oven. Or is this all an illusion?
gpt
All heating sources tend to heat the outer layers of food first. Microwave ovens transfer heat into food much more efficiently than convection ovens, so food generally spends less time in a microwave. In a convection oven, the heat on the outer layers of the food has time to diffuse into the inner part of the food, resulting in food at a more even temperature. In a microwave oven, it is possible to heat the outer layers of your food to a similar temperature very quickly, but the inside of the food is cooler. When you take the food out, the outside layer is loosing heat to the environment and to the cooler inner part of the food, so it will cool much faster than food which is a fully uniform temperature.