Most of the latest model of rice cooker comes with digital timer and the more advance one, comes with fuzzy logic. This would ensure the rice can be cooked with minimum monitoring and according to the correct time duration.
Basic rice cooker comes with 2 mode, ie to cook or just to keep warm. The basic step in using a rice cooker is just to measure the quantity of rice and water needed to be cooked and just set the rice cooker to cook the rice. The cooking will be completed within 30 minutes. After the cooking is completed, the rice cooker mode is switched to keep warm to keep the cooked rice warm until the mealtime.
Some fun fact about rice cooker in Japan (extracted from WSJ)
- Toshiba sold the first automated rice cooker in 1955
- Good rice is cooked properly, shiny and fragrant. There have to be the right amount of stickiness to clump together between chopstick. The ideal rice can be enjoyed first with the eyes, then with the nose and finally with the tongue as the sweetness spreads upon chewing
- Japanese consumer are willing to pay $1,000 for ultra high end rice cooker.