Why Does My Rice Cooker Boil Over

A kitchen without a cooker is said to be incomplete since it is one of the most essential items of cookware equipment in the home. We’re all aware of the importance of a cooker and the variety of dishes that can be served for it.

A rice cooker is a must-have in every home because it helps you to make perfectly cooked rice and other side dishes. Rice cookers come in handy in several cases. Many people who use rice cookers have one basic question in mind: Why does my Rice cooker overboil? This is a very common problem faced by many people and this can be a little irritating.

This type of incident can happen frequently when you are ready to cook something delicious and you suddenly hear a hissing sound from the stove. This simply means that the water is in contact with the burners or the flames. Today we are going to look at some of the reasons why a rice cooker boils over. We will also look at some of the things one can do when such things happen. If you have ever faced such problems or if you have a rice cooker then you must read this article carefully.

Why does a rice cooker boil over?

A rice cooker is an excellent cooking tool but there are chances that it can boil over and this thing can happen frequently. There are some reasons why this happens. The two of the main leading cause behind your rice cooker boiling over are:

  • You haven’t washed the rice which is why it is too starchy.
  • You have overfilled the cooker with rice or water or maybe both.

You might have made everything proper and you have also read the manual and taken the right measurement for water and rice still it might have boiled over. Keep reading to find out something that you may have missed.

Wash rice before boiling it

It is very important to wash the rice before putting it inside the rice cooker. You might have bought a rice cooker that assured quick cooking and very simple to use.

These cookers are very handy and they can be very helpful but there are some things you must-do if you want to avoid over boiling issues. Many people forget to wash the rice before putting it inside the cooker and this can also be a great reason why your rice cooker ends up with a boil-over. Washing rice is quite simple and it will take a few minutes to do it. Here are some of the methods you can follow for washing rice.

Method 1

You need a finely woven colander to use this technique. Making sure rice grains don’t match through the mesh, or else you have to purify yourself and don’t cook rice. A large cup, clean water, and spoon or clean hands are also required.

  1. Take a bowl and pour the rice into it
  2. Now cover the rice using lukewarm water
  3. You need to stir the rice inside the bowl and you can do this with your hands or a spoon.
  4. Now pour the rice into the colander from the bowl
  5. Spill out all the water from the bowl and make it empty.
  6. You need to repeat this around 1-5 times until you notice that the water is clear after you stir the rice.

Method 2

In this method, you are going to need water and a woven colander.

  • In this, you need to directly pour the rice inside the colander.
  • After this add lukewarm water inside the colander over the rice
  • Use your hands to stir the rice

You won’t be able to see any starch running out in this method that’s why you need to decide how long you have to rinse the rice.

Why do rice cookers Boil over?

We simply saw earlier that the reason behind the rice cooker boiling over is the rice itself and not the cooker.

The most common reason behind a rice cooker boiling over is the presence of excess starch on the rice that you are cooking inside the rice cooker. Rice is starchy and one cannot avoid it. When there is an excess amount of starch on the rice that you are cooking this can get mixed with the boiling water and ends up creating large and foamy bubbles. These bubbles can move and make their way to the surface of your rice cooker and this is the reason why your rice cooker boils over.

If the starch and the water continue to mix it can not only cause the rice cooker to boil over but it can also be a reason why your rice turns into soupy porridge.

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Which rice contains the least amount of starch?

Starch is the reason behind your rice cooker boiling over so it is obvious that one should consider buying rice that has lower starch.

There are two kinds of starch that can be commonly found in rice

  • Amylopectin
  • Amylose

Amylose is something that helps the rice kernels from getting mushy and this is the reason why you end up with a bowl of separated grains of rice.

Amylopectin is something that is much stickier and this can be very helpful for preparing things like rice pudding or risotto.

So now you might be wondering which of the two types of starch makes your rice boil over.

I guess you might have known from the above-mentioned things that Although the definitions suggest you, the risk of your rice cooker boiling is lower with amylose starch. So try to use one of those rice varieties that have high amylose starch and low amylopectin starch when you have this problem.

  • Basmati rice
  • Jasmine
  • Long-grain white rice

These are the type of rice that you can use if you want to prevent boilover. Jasmine and basmati are mostly used for Indian and Thai dishes.

Click here to buy rice with low starch



Why does my rice cooker Boil over even after washing rice?

The rice cooker is overfilled

There are chances that you have overfilled your rice cooker with rice or water or you might have overfilled it with both of them. You need to properly fill the rice cooker if you want to avoid such problems. Refer to the manual for this.

The rice type

If you regularly use brown rice in a rice cooker then this can be a problem. You must go with the type of rice that contains less starch.


The most common reason why your rice cooker boils over is due to the rice. The rice might contain a lot of starch or there can be chances that you might have overfilled the cooker with excess water and rice.

If you want to prevent such kinds of problems I have mentioned some of the things you can try. I hope this article was useful and relevant to you.




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