How to Cook Japanese Rice

In Japan, the word for cooked rice - gohan - also means 'meal.' This tells you everything about the importance of rice in Japanese food culture. A Japanese meal is not built around a main dish; it is built around rice, with everything else serving as accompaniments (okazu) to make the rice more enjoyable. Cooking rice well is therefore the single most important kitchen skill in Japanese cooking. The goal is rice where each grain is distinct yet sticky enough to pick up with chopsticks, with a subtle sweetness and a clean, slightly glossy sheen. This guide will teach you to cook rice that meets that standard.

Choosing the Right Rice

Japanese cooking requires short-grain japonica rice, not the long-grain rice common in Southeast Asian and Indian cooking. Short-grain rice is rounder, stickier, and has a higher starch content that gives it the characteristic texture needed for Japanese dishes. The most widely available brands outside Japan are Koshihikari (the premium standard), Calrose (a California-grown japonica variety that works well), and Tamaki Gold. Avoid jasmine rice, basmati rice, or any 'fluffy' long-grain variety - the texture will be completely wrong for Japanese dishes.

Washing Rice: Why It Matters

Washing rice removes surface starch that would otherwise make the cooked rice gummy in a bad way. In Japanese the process is called 'kome wo togu' - literally 'polishing rice.' This is not optional; unwashed rice produces a noticeably inferior result. Here is how to do it properly.

1. 01Measure the rice into a bowl. Add plenty of cold water, swirl quickly with your hand a few times, and immediately pour off the cloudy water. The first water is discarded fast so the rice does not reabsorb the dusty starch.
2. 02Add fresh water and gently 'polish' the rice by pressing your fingers through it in a light circular motion about 20 times. It should look like you are gently raking the grains, not scrubbing.
3. 03Pour off the water and repeat 2-3 times, until the water runs mostly clear but still slightly cloudy. It does not need to be perfectly clear.
4. 04Drain the rice well in a sieve. For best texture, let it rest in the sieve for 10-15 minutes before cooking.

Cooking with a Rice Cooker

A rice cooker is the standard tool in Japanese kitchens - over 95% of Japanese households own one. The process is straightforward: add washed rice, add water to the corresponding line marked inside the pot, close the lid, and press start. The rice cooker handles temperature and timing automatically. The standard water ratio is 1:1 by volume (1 cup rice to 1 cup water), but most rice cookers have water level lines that account for this. After the cooker signals completion, let the rice steam with the lid closed for 10 minutes, then fluff with a rice paddle using a cutting motion - do not stir.

Cooking on the Stovetop

If you don't have a rice cooker, a heavy-bottomed pot with a tight-fitting lid produces excellent results - and gives you more control over the final texture. Use a 1:1.1 ratio of rice to water by volume (slightly more water than rice).

1. 01Add the drained rice and water to the pot and let it soak for 20-30 minutes before turning on the heat.
2. 02Cover and bring to a boil over medium heat. You may hear it bubbling and see steam escaping.
3. 03Once boiling, reduce to the lowest heat and cook, covered, for 12-13 minutes. Do not lift the lid.
4. 04Turn off the heat and let the rice steam, still covered, for 10 minutes. This finishes the cooking gently.
5. 05Fluff with a rice paddle using a cutting-and-folding motion to release steam without crushing the grains.

Troubleshooting Common Problems

If your rice is too wet or mushy, you used too much water or didn't drain it well enough after washing. Reduce water by 10% next time. If the rice is too hard or has a chalky center, you didn't soak it long enough or used too little water. If the bottom is burned, your heat was too high during the simmering phase. If the rice lacks flavor, try adding a small piece of kombu to the pot before cooking - this is a traditional Japanese technique that adds subtle umami.

Okayu: Rice Porridge for Babies

In Japan, a baby's very first solid food is almost always okayu - soft rice porridge made from the same short-grain rice. It is simply rice cooked with much more water and for longer, then mashed or strained to a smooth, swallowable texture. The amount of water defines the stage: very thin '10:1' okayu (ten parts water to one of rice) for first foods, gradually thickening to '7:1' and '5:1' as your baby progresses. You can make it from raw rice or from already-cooked rice. See our okayu recipe and weaning stage guides on the blog for exact ratios and methods.

• 10:1 okayu - first foods, around 5-6 months, smooth and almost pourable.
• 7:1 okayu - middle stage, around 7-8 months, slightly thicker.
• 5:1 okayu - late stage, around 9-11 months, soft but textured.
• Soft rice (gohan) - complete stage, around 12-18 months.

Frequently Asked Questions

Can I use regular long-grain rice for Japanese recipes?

No, not really. Long-grain rice (jasmine, basmati) lacks the stickiness needed for Japanese dishes. You won't be able to pick it up with chopsticks, and the texture will be wrong for sushi, onigiri, and donburi. Calrose rice, available in most supermarkets, is an affordable Japanese-style short-grain rice.

Do I really need a rice cooker?

No. A heavy pot with a tight lid works perfectly well. Many Japanese home cooks before the 1960s cooked rice on the stove daily. A rice cooker is convenient but not essential. However, if you eat rice frequently, a quality rice cooker is a worthwhile investment.

How do I store leftover cooked rice?

Wrap individual portions tightly in plastic wrap while still warm, then freeze. Frozen rice, when microwaved, tastes remarkably close to freshly cooked. Refrigerated rice dries out and hardens - freezing is superior to refrigerating for rice storage.

What is the difference between sushi rice and regular Japanese rice?

They use the same type of short-grain rice. The difference is in the seasoning: sushi rice (sumeshi) has rice vinegar, sugar, and salt mixed in after cooking. Plain Japanese rice for everyday meals is unseasoned.

How do I make rice for a baby?

Make okayu (rice porridge): cook short-grain rice with much more water than usual and for longer, then mash or strain it smooth. Use a 10:1 water-to-rice ratio for first foods around 5-6 months, thickening to 7:1 and 5:1 as your baby grows. No salt or seasoning is needed. You can also simmer already-cooked rice with extra water to make okayu quickly.