How does a rice cooker know when the rice is done?

In this brief guide, we are going to answer the question “how does a rice cooker know when the rice is done” with an in-depth analysis of how the rice cooker knows when rice is done. Moreover, we are going to discuss the working principle of a rice cooker and the quantity of water that we need to add to it along with the proper way to use the rice cooker.

So without much ado, let’s dive in and figure out more about it.

How does a rice cooker know when the rice is done?

The rice cooker knows when the rice is cooked owing to the presence of a thermostat that detects when the temperature in the container surpasses 212 degrees Fahrenheit.

Thus, a rice cooker knows when the white rice is done because of an ascent in temperature. As the water in a rice cooker gets absorbed into the rice, the temperature starts to rise. At the point when it arrives at a set point, it triggers the cooker to turn off the heat, demonstrating the rice is done.

What is the role of the thermal sensor in the rice cooker?

This is the mechanism that detects when the temperature has reached boiling temperature and sends signals to the device to halt cooking.

How does the rice cooker work?

Different types of rice need a different amount of water to be added to it. So what the rice cooker does is that it detects the water to rice ratio. 

Now once you have added your rice and the recommended amount of water to the rice cooker, what happens is that the rice cooker starts to heat the water, and with time, the water starts to get absorbed into the rice, and the internal temperature of the cooker increases. 

Once all the water gets absorbed in the rice, and the internal temperature of the cooker rises above 212°F, this increase of temperature acts as a trigger and signals the rice cooker that it is time to turn off the heat as the rice is done.   

How would you know that rice is done?

The best thing about using a rice cooker to make rice is that the rice cooker automatically turns off as soon as the rice is done. So you don’t have to worry about your rice becoming mushy or dry. 

There is a light on the rice cooker that is the indication of whether or not your rice is done. So when the light is “on”, it means that the rice cooker is still in the process of cooking rice. When the light turns “off”, it is the indication that the rice cooker has turned off and that your rice is done.

How much water do you need to use in a rice cooker?

There are a  couple of factors that govern the amount of water that you have to add to the rice cooker. The factors include the type of rice, the amount of rice, and whether or not the rice was washed before adding them into the rice cooker.

Long grain white rice 

For cooking a cup of long-grain white rice you have to add 1 ¾ cups of water to the rice cooker.

Medium grain white rice 

For cooking a cup of medium grain white rice you have to add 1 ½ cups of water to the rice cooker.

Short grain white rice 

For cooking a cup of short-grain white rice you have to add 1 ½ cups of water to the rice cooker.

Long grain brown rice 

For cooking a cup of long-grain brown rice you have to add 2 ¼ cups of water to the rice cooker.

Parboiled rice 

For cooking a cup of parboiled rice you have to add 2 cups of water to the rice cooker.

Basmati or Jasmine rice  

For cooking a cup of basmati rice you have to add 1 ½ cups of water to the rice cooker.

Quinoa

For cooking a cup of quinoa you have to add 2 cups of water to the rice cooker.

You can read about different types of rice cookers here.

How to cook rice in a rice cooker?

  1. First, measure the amount of rice that you want to cook and add them to a bowl.
  1. Wash the rice under running water.
  1. Once you have washed the rice, transfer them to the inner pan of the rice cooker.
  1. Now it’s time to add water to your rice cooker.
  1. After you have added both the rice and the water to the pan of the rice cooker, place this pan inside the rice cooker. Add some oil, salt, and spices of your choice.
  1. Close the lid of the rice cooker.
  1. Turn on the rice cooker.
  1. When you turn on the cooker the light present on it will turn on while once your rice gets done, this light will turn off and this is the indication that your rice has been done.
  1. It is recommended to leave your rice for about 10-15 minutes in the “keep warm” mode before serving so that the extra moisture can evaporate.
  1. Dish out the rice and serve.   

Conclusion

In this brief guide, we answered the question “how does a rice cooker know when the rice is done” with an in-depth analysis of how the rice cooker knows when rice is done. Moreover, we discussed the working principle of a rice cooker and the quantity of water that we need to add to it along with the proper way to use the rice cooker.

Citations

https://recipes.howstuffworks.com/tools-and-techniques/question35.htm#:~:text=The%20appliance%20has%20a%20thermostat,and%20it%20turns%20itself%20off.
https://www.cnet.com/home/kitchen-and-household/appliance-science-how-rice-cookers-cook-rice-without-burning/

Mahnoor Asghar is a Clinical Nutritionist with a bachelor's degree in Nutrition and Dietetics. She is compassionate and dedicated to playing her part in the well-being of the masses. She wants to play a fruitful role in creating nutrition and health-related awareness among the general public. Additionally, she has a keen eye for detail and loves to create content related to food, nutrition, health, and wellness.