[ELI5] How does a rice cooker “know” the timing to switch from cook to warm when there’s no more water in it?

Question

[ELI5] How does a rice cooker “know” the timing to switch from cook to warm when there’s no more water in it?

In: 825

Answer 1

The rice cooker will heat the bowl. The water will absorb this heat and turn to steam, which the rice absorbs. Once there’s no more water left to absorb the heat, the bowl will quickly rise in temperature. Sensors in the rice cooker will detect this jump in temperature and switch off or switch to keep warm mode.