How to Cook Japanese Rice in a Rice Cooker – Just One Cookbook

Steamed rice recipe in rice cooker

Video Steamed rice recipe in rice cooker

How to cook Japanese rice in a rice cooker: Follow my rice-to-water ratio tips, and you’ll get the perfect steamed rice every time! No more soft or dry rice!

Japanese rice bowls containing perfectly cooked Japanese rice.Japanese

people eat rice almost every day, sometimes 3 meals a day! Cultivated for thousands of years in Japan, rice occupies a very important place in the culture and is the staple food par excellence of the Japanese diet.

When it comes to rice quality down to cooking technique, we take all aspects seriously.

Today I will share how the Japanese cook rice in a rice cooker. Most importantly, how we measure rice and water to achieve a perfect result.

How to cook perfect Japanese rice in a rice cooker | Easy Japanese recipes in

The rice-to-water ratio for short-grain

rice Over the

years, I’ve received many questions from my readers asking why their rice comes out dry


And I think I know the reason.

Most online resources will tell you that the rice-to-water ratio for Japanese short-grain white rice is 1 to 1.

But what you probably didn’t know is this:


Japanese golden rule for rice-to-water ratio is 1 to 1.1 (or 1.2).

That’s 10-20% more water (which you didn’t add)! For 1 cup rice cooker (180 ml or 3/4 cup American) of rice, you will need 200 ml of water, not 180 ml.

That means, if you still want to use a ratio of 1 to 1, the rice should be soaked in separate water for 20-30 minutes (for that extra 10-20%) and drained well before adding the measured water in a ratio of 1 to 1. In this way, you ensured that your rice received the moisture it needs.

Most online recipes don’t include that step, which means the rice lacks the extra 10-20% of water it needs.

Japanese rice bowls containing perfectly cooked Japanese rice.

So… Exactly how much water do you need for each cup?

The plastic rice cooker cup

that comes with the rice cooker is 180ml or 3/4 cup American. In Japan, this amount is called ichi go (一合). This is the amount of room temperature water you need for each cup of Japanese short-grain white rice rice when you follow the ratio of 1 to 1.1 (or 1.2): 1 cup

rice cooker (180 ml) = add 200 ml water 2 cups rice cooker (360 ml) = 400 ml 3 rice cups (

540 ml) = 600 ml 4 rice cups (720 ml) = 800 ml 5 rice cups (900 ml) = 1000ml Calculation: 180 ml x 1.1 (or 1.2) = 198 ml (or 216 ml)

Or simply pour water up to the marked water line. My family and I preferred to add a little more water than the water line in the rice cooker bowl (see below). Every time we cook the rice according to the specified water line, the rice comes out a little dry. Therefore, I strongly recommend that you test and adjust the amount of water whenever you change the brand of rice or the region where the rice is harvested.

How to cook perfect Japanese rice in a rice cooker | Easy Japanese recipes in

Important tip: Never skip

the soak!

Short grain rice always requires soaking (20-30 minutes) unlike other types of

rice. Rice

grains are rounder and fatter, so they need an advantage to absorb moisture to the core of the Rice Almond.

For newer rice cookers, about 10 minutes of “soaking” time is already scheduled into the rice cooking menu. However, in my opinion, 10 minutes is not enough. I would suggest soaking the rice for at least 20-30 minutes so that you have enough time to absorb more moisture.


  • When using a new crop (新米), reduce the water slightly
  • .

  • Different brands of rice – require a slightly different amount of water.
  • No measuring cup? – Use a cup to measure rice and water (exactly the same volume). Soak the rice for 20-30 minutes and drain well. Then add the measured water (a 1-to-1 ratio approach).

How much rice do we need to cook?

You can divide the number of servings you need in half to calculate how many cups of Japanese short-grain white

rice cooker cooker: 1 cup rice

cooker (180 ml, 3/4 US cup, 150 g) of raw rice produces about 2 servings (13/4 US cups, 330 g) of cooked rice. This is enough for 2 bowls of Japanese rice (typically 150 g each) or 3 balls of onigiri rice (typically 110 g each). 1 American cup cooked rice weighs 6.3 oz (180 g).

11/2 cups rice cooker (270 ml, 11/8 US cups, 225 g) produce approximately 3 servings (23/4 US cups, 495 g) of cooked rice.

2 cups rice cooker (360 ml, 11/2 US cups, 300 g) produce approximately 4 servings (32/3 US cups, 660 g) of cooked rice.

3 cups rice cooker (540 ml, 21/4 US cups, 450 g) produce approximately 6 servings (51/2 US cups, 990 g) of cooked rice.

4 cups rice cooker (720 ml, 3 US cups, 600 g) produce approximately 8 servings (71/3 US cups, 1320 g) of cooked rice.

5 cups rice cooker (900 ml, 33/4 US cups, 750 g) produce approximately 10 servings (91/6 US cups, 1650 g) of cooked rice.

The best way to

store cooked rice

What is the best method to store cooked rice? Simply freeze the rice in airtight containers and reheat for later enjoyment! This is by far the best approach to keeping your rice fresh and moist.

<img src="" alt="How to store cooked rice

| Easy Japanese recipes in” />How to store cooked


My favorite rice cooker Rice

cookers in Japan are

more high-tech and have a very futuristic look, but they are also very expensive. The rice cookers, which many of my friends in Japan have, would have cost $1,000!

Those of us who live outside of Japan don’t have too many (fancy) options. Since I arrived in the United States, I have been using only Zojirushi brand rice cookers (3 of them).

Zojirushi Rice | Easy Japanese recipes in

This is my current Zojirushi rice cooker. It is a 5.5 cup Zojirushi induction pressure cooker and heater (Amazon).

Since we eat rice at home almost every day, I rely heavily on a superior rice cooker to cook the perfect rice for my family.

Zojirushi rice cooker uses pressurized cooking and AI (Artificial Intelligence) to cook rice. It also has a platinum-infused nonstick inner skillet that highlights the natural sweetness of rice.

The other features


  • Automatically selects from three pressure levels depending on
  • the selected menu Healthy cooking options: brown rice and

  • GABA brown rice Settings
  • Menu settings include: white (regular, softer or harder), umami, mixed, sushi/sweet, porridge, brown, GABA brown, reduce steam, sing-free, rinse-free and quick cooking
  • Made in Japan

With this rice cooker, I’ve never had to worry about dry or soft rice. It’s absolutely one of the must-have kitchen gadgets I can’t live without!

If you are interested, you can buy the rice cooker on Amazon.

Perfectly cooked rice served in a bowl of rice along with miso soup.

Other Japanese rice cooking methods

How to cook rice in a pot

  • on the stove
  • How to cook rice in an

  • instant pot How to cook rice in
  • a Donabe (Japanese earhtenware pot)
<img src="" alt="A kamadosan donabe containing perfectly cooked Japanese

rice.” />

Making delicious

sushi rice

Sushi rice in hangiri.

How to make

sushi rice For

Make all kinds of sushi (sushi rolls, nigiri sushi, hand rolls, etc.), you will need sushi rice seasoned with sushi vinegar.

  • Delicious Takikomi Gohan
  • (Mixed Rice) Rice

  • Recipes12 Donburi (Rice Bowl) Onigiri Recipes (
  • Japanese Rice Balls)
  • Fried Shrimp Rice

I hope you found the above tips helpful. I’ve also included more topics about rice after the recipe below. If you have any further questions, leave me a comment below!

Japanese rice bowls containing perfectly cooked Japanese rice.

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Want to know more about Japanese rice?

Rice in the Japanese supermarket

Everything you need to know about Japanese rice Culinary specialist with more than 10 years of experience in the restaurant industry.

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