For cooking white rice using the best electronic rice cooker, the rice-water ratio is usually 1 part of rice & 1 part of water. Rice:Water=1:1
The ratio may vary a little depending on the brand of rice and your personal preference. Some people like their rice more watery than others.
2 cups rice -> 2 cups water
3 cups rice -> 3 cups water
4 cups rice -> 4 cups water
5 cups rice -> 5 cups water
If you use a pot the ratio is different. See cooking white rice in a pot.
For mixed (multigrain) rice, the ratio is completely different. See cooking multigrain rice using a rice cooker and cooking multigrain rice in a pot.
1. Wash rice
Wash 1 cup of rice in cold water. Do not rub it too hard or too long as it will lose nutrients. Wash twice in total. Second time, drain the water as much as possible without losing the rice grains.
2. Add water
Add 1 cup of water. *See tips for water ratio for different amounts.
Place it in the rice cooker and select white rice (if there is an option). It’s best to leave it (don’t open) for 5-10 min even after the cooking completion light has come on.
With a rice spatula, flip through the rice very gently. Serve in a rice bowl.