Learn how to make sushi rice perfectly every time with step-by-step pictures and a video tutorial. All you need are simple ingredients such as rice vinegar, sugar, salt, and kombu. Once you master the secret of making the sushi rice, you will be ready to dish up all kinds of mouth-watering sushi recipes!

Sushi oke (Hangiri) containing sushi rice made with cooked Japanese short-grain rice, rice vinegar, sugar, and salt.

Perfectly cooked Sushi Rice (酢飯) is fundamental in making any form of sushi. Indeed, the best sushi restaurants in Japan pride themselves not only on the freshest fish or variety but on the technique and quality of the sushi rice. Here, I shared my secrets and techniques on how to make sushi rice the authentic way. Follow along, and you’ll be able to make the best sushi rice at home for all kinds of sushi!

What is Sushi Rice?

Sushi rice is made by cooking Japanese short-grain rice with kombu (kelp), which is then seasoned with a mixture of rice vinegar, sugar, and salt. In Japanese, sushi rice is also known as sushi-meshi (鮨飯), su-meshi (酢飯), or shari (シャリ). We only use this vinegar-flavored rice when making all kinds of sushi.

Sushi oke (Hangiri) containing sushi rice made with cooked Japanese short-grain rice, rice vinegar, sugar, and salt.

It’s worth noting that outside of Japan, Japanese short-grain rice is often called “sushi rice” for marketing purposes. In reality, Japanese rice is typically used in everyday meals and less often in sushi recipes.

You may also notice that Japanese short-grain rice has been incorrectly called “sticky rice.” Sticky rice is actually another name for glutinous rice or short-grain Japanese mochigome. We use this type of glutinous rice to make MochiSekihan, and Okowa.

👉🏼 If you are here looking for a recipe to make plain steamed rice, see my post on How to Make Rice.

👉🏼 To brush up on your knowledge, I highly recommend reading “Everything You Need to Know about Japanese Rice” and “Types of Japanese Rice.“

Why Do We Season the Steamed Rice with Vinegar?

This actually goes back to the origin of sushi. The literal meaning of sushi is “sour flavor.” Historically, the way people stored fish was by wrapping it in fermented rice. When they were ready to enjoy the fish, the fermented rice was tossed away.

Sometime between the 1300s and 1500s, the Japanese slowly stopped using fermented rice and instead added vinegar to the rice to further increase its shelf life. The vinegar ended up improving the flavor of the rice so they started eating the fish and the rice together, which evolved to today’s sushi.

These days with refrigeration, there is no longer a spoilage issue with the fish, but the centuries of flavoring the rice with vinegar have become the mainstay.

Sushi oke (Hangiri) containing sushi rice made with cooked Japanese short-grain rice, rice vinegar, sugar, and salt.

Where to Buy Japanese Short-Grain Rice

You can find Japanese short-grain rice, commonly labeled as sushi rice, in major grocery stores these days. Some standard, affordable brands like Kokuho Rose and Nishiki are medium-grain rice.

For premium brands, I recommend Tamaki Gold and Tamanishiki Super Premium Short Grain Rice, which are available in Asian grocery stores.

Japanese Short-Grain Rice from Toyama

If you’re looking for imported, high-quality rice from Japan, I would recommend the Koshihikari variety, which is available from various brands at Japanese grocery stores. Known for its sweet taste and fragrance, it is the most popular variety in Japan.

My family and I like the Koshihikari rice from Toyama prefecture (see above). Nijiya Market sells it and we think it’s one of the best imported rice available here in the U.S. at this time.

The Right Rice-to-Water Ratio

How to Make Sushi Rice-step by step-13

When cooking rice normally, the Japanese golden ratio for white rice to water is 1 to 1.1 (or 1.2).

However, when making sushi rice (for all kinds of sushi recipes), it is very important to leave room for the sushi vinegar to soak into the cooked rice. For that reason, the amount of water to cook the short-grain rice is slightly moderated.

To make sushi rice, the golden ratio for white rice to water is 1 to 1.

Also, The rice should be cooked slightly harder and the steaming time should be shortened.

Sushi oke (Hangiri) containing sushi rice made with cooked Japanese short-grain rice, rice vinegar, sugar, and salt.

How to Make Perfect Sushi Rice

The Ingredients You’ll Need

  • Japanese short-grain rice
  • Kombu (kelp) – optional, but it infuses your rice with a nice aroma
  • Rice vinegar
  • Sugar
  • Salt
Jump to Recipe

The Cooking Steps

  1. Cook rice with kombu using your preferred cooking method.
  2. Make “sushi vinegar” seasoning.
  3. Transfer cooked rice to a baking sheet lined with parchment paper or a sushi oke or hangiri (traditional method).
  4. Season the rice with “sushi vinegar.” Then, fluff the rice with a rice paddle using a slicing motion.
  5. Cover with a damp towel and ready to use.

How Much Rice Do I Need to Cook?

The plastic rice cooker cup that comes with the rice cooker is ¾ cup (180 ml). In Japan, this amount is called ichi go (一合). 

Measuring White Rice in Rice Cooker Cup
  • 1 rice cooker cup (180 ml, ¾ cup, 150 g) of uncooked rice
    • 2¼ cups or 330 g of cooked rice
      • 1 thick sushi rolls
      • 2 medium sushi rolls
      • 4 thin sushi rolls
      • 3 inside-out rolls
  • 2 rice cooker cups (360 ml, 1½ cups, 300 g) of uncooked rice
    • 4⅓ cups, 660 g of cooked rice
      • 2 thick sushi rolls
      • 4 medium sushi rolls
      • 8 thin sushi rolls
      • 6 inside-out sushi rolls
  • 3 rice cooker cups (540 ml, 2¼ cups, 450 g) of uncooked rice
    • 6⅔ cups or 990 g of cooked rice
      • 4 thick sushi rolls
      • 6 medium sushi rolls
      • 12 thin sushi rolls
      • 9 inside-out sushi rolls
  • 4 rice cooker cups (720 ml, 3 cups, 600 g) of uncooked rice
    • 8¾ cups or 1320 g of cooked rice
      • 5 thick sushi rolls
      • 8 medium sushi rolls
      • 16 thin sushi rolls
      • 12 inside-out sushi rolls
  • 5 rice cooker cups (900 ml, 3¾ cups, 750 g) of uncooked rice
    • 11 cups or 1650 g of cooked rice
      • 6 thick sushi rolls
      • 11 medium sushi rolls
      • 20 thin sushi rolls
      • 15 inside-out sushi rolls

Helpful Notes to Remember:

  • One thick sushi roll (Futomaki) requires 1⅔ cups (250 g) of sushi rice.
  • One medium sushi roll (Chumaki) like Vegetarian Sushi Roll requires 1 cup (150 g) of sushi rice.
  • One thin sushi roll (Hosomaki) requires ½ cup (80 g) of sushi rice.
  • One inside-out sushi roll (Uramaki) like California Roll requires ¾ cup (110 g) sushi rice.
  • One nigiri sushi requires 20 g of sushi rice.
Sushi oke (Hangiri) containing sushi rice made with cooked Japanese short-grain rice, rice vinegar, sugar, and salt.

Cooking Tips

  • Use Japanese short-grain rice. To achieve an authentic Japanese standard, you want to use only short-grain Japanese rice to make sushi rice. This is because the consistency and flavor of Japanese rice are very different from long-grain rice, jasmine rice, or other types of rice. With a higher content of moisture, Japanese rice is characterized by its unique stickiness and texture, which is attributed to the toothsome bite of authentic sushi. Read more about rice on my pantry page.
  • Rinse and soak the rice before cooking. Make sure the rice is washed and rinsed a few times until no more starch comes out from the water. Then let the rice be soaked for at least 20-30 minutes before cooking. This allows the rice grains to yield a better texture.
  • Cook the rice with kombu. Kombu (dried kelp) gives a subtle fragrance and umami taste to the sushi rice.
  • The rice-to-water ratio is 1:1 (volume). Because we add sushi vinegar to the cooked rice, we use a bit less water than when you cook the rice regularly.
  • Make homemade sushi vinegar. Sushi rice is always seasoned with sushi vinegar. It’s made of rice vinegar, sugar, and salt to achieve a balance of sweet, salty, and sour taste. You need to get mild-flavored rice vinegar, not another type of vinegar for this; otherwise, it’s too strong and the flavor is not the same. If you want to save time, you can use a bottle of seasoned vinegar called sushizu (すし酢).
  • Transfer cooked rice to a sushi oke (hangiri), a large salad bowl, or a baking sheet lined with parchment paper. You must let the rice cool fast. It’s common to use an electric fan or hand-held fan called uchiwa (うちわ) to cool the rice.
  • Add sushi vinegar when the rice is hot. As soon as the rice is taken out of the rice cooker or the cooking pot, you have to season the rice with sushi vinegar.
  • Fluff the rice in a slicing motion with a rice paddle. Don’t mix or else sushi rice will end up being mushy or smashed. With proper fanning and slicing, your sushi rice becomes shiny!
  • Cover with a damp towel and keep it at room temp until you’re ready to make sushi.

What Does Perfectly Cooked Rice Look Like?

After the rice is steamed, the rice should be shiny and plump. The texture should be fluffy with a firm bite. And each rice grain should be sticky yet retain its shape. Mushy rice means it has too much water or it is overcooked. If the rice is fresh, you will see a nice shiny gloss on the surface of each grain. 

Sushi Oke (Hangiri) – A Wooden Tub

The wooden tub that is used to season, mix, and cool sushi rice is called sushi oke (寿司桶) or hangiri (はんぎり). It has straight edges and a flat bottom, which assists in spreading hot rice and allowing it to cool after adding sushi seasoning. The Hinoki cypress absorbs excess moisture.

Sushi Oke (Hangiri) 3 sizes
I have a 17-inch (great for a big party), a 14-inch (4-6 servings), and a 10-inch (2-3 servings) sushi oke.

Best Way to Store Cooked Rice

How to Store Cooked Rice | Easy Japanese Recipes at JustOneCookbook.com
How to Store Cooked Rice

What’s the best method to store cooked sushi rice? Simply freeze the sushi rice in airtight containers and bring it back to room temperature when you need it to make sushi! This is by far the best approach to keeping your sushi rice fresh and moist. Do not refrigerate it!

Other Methods of Cooking Japanese Rice

You can cook the rice using a pot over the stove, but the most convenient way is to cook sushi rice using an electric rice cooker. In my Japanese home kitchen, my trusted rice cooker brand is Zojirushi Rice Cooker. Because I cook sushi rice often, this rice cooker has a ‘sushi’ option, which makes it really easy to ensure the rice is cooked perfectly. Here are my recipes for different cooking options.

Delicious Sushi Recipes

Now with perfectly cooked sushi rice, you can make all kinds of sushi recipes! If you are interested in learning more, check out my post Learning at Sushi Skills Seminar in San Francisco.

Sushi oke (Hangiri) containing sushi rice made with cooked Japanese short-grain rice, rice vinegar, sugar, and salt.

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Sushi oke (Hangiri) containing sushi rice made with cooked Japanese short-grain rice, rice vinegar, sugar, and salt.

How to Make Sushi Rice (for Sushi Recipes)

4.57 from 497 votes
Learn how to make sushi rice perfectly every time with step-by-step pictures and a video tutorial. All you need are simple ingredients such as sushi vinegar, sugar, salt, and dashi kombu. Once you master the secret of making the rice, you will be ready to dish up all kinds of mouth-watering sushi recipes!

Video

Prep Time: 10 minutes
Cook Time: 1 hour
Soaking Rice Time: 20 minutes
Total Time: 1 hour 30 minutes
Servings: 4

Ingredients
 

For 5–6 Servings (Makes 6 Medium Sushi Rolls)

Homemade Sushi Vinegar (optional; for 5–6 servings above)

For 3–4 Servings (Makes 4 Medium Sushi Rolls)

Homemade Sushi Vinegar (optional; for 3–4 servings above)

Japanese Ingredient Substitution: If you want substitutes for Japanese condiments and ingredients, click here.

Instructions
 

Before You Start…

  • One thick sushi roll (Futomaki) requires 1⅔ cups (250 g) of sushi rice. One medium sushi roll (Chumaki) like Vegetarian Sushi Roll requires 1 cup (150 g) of sushi rice. One thin sushi roll (Hosomaki) requires ½ cup (80 g) of sushi rice. One inside-out sushi roll (Uramaki) like California Roll requires ¾ cup (110 g) sushi rice. One nigiri sushi requires 20 g of sushi rice.
    A white round plate containing colorful vegetarian sushi rolls, sushi ginger, and soy sauce.
  • How to Measure: Overfill a ¾ cup measure or a plastic rice cooker cup with uncooked short-grain white rice and level it off. Put the rice in a large bowl. Repeat until you have the amount needed. Tip: You must use Japanese short-grain white rice or your sushi will fall apart. Please note that 2¼ cups (450 g, 3 rice cooker cups) of uncooked Japanese short-grain rice yield 6⅔ cups (990 g) of cooked rice.
    How to Make Sushi Rice 1
  • Gather all the ingredients. 
    How to Make Sushi Rice Ingredients

To Wash and Cook the Rice

  • Quick Rinse: Add just enough water to submerge all the rice. Then, discard the water immediately. Tip: Rice absorbs water very quickly when you start rinsing, so this step helps remove impurities from the rice and prevent it from absorbing the first few rounds of milky water.
    Japanese Corn Rice 1
  • Wash: Next, use your fingers to gently agitate the wet rice grains in a circular motion for 10-15 seconds. Using very little water allows the grains to rub against each other. It also reduces the absorption of impurities from the milky water.
    Japanese Corn Rice 2
  • Rinse: Add water and immediately discard the cloudy water.
    Repeat Wash and Rinse (steps 2 and 3) two more times.
    Japanese Corn Rice 3
  • Drain: When the water is almost clear, drain the rice very well. Tip: Use a fine-mesh sieve to drain and shake off any excess water.
    Japanese Corn Rice 4
  • Put the well-drained rice in the inner pot of the rice cooker and add the measured water. If your rice cooker has a Sushi Rice mode, add water up to that line. If not, add water to just under the 3-rice-cooker-cup line for White Rice (for 2¼ US cups of uncooked rice). Tip: For sushi rice, the ratio of short-grain white rice to water is only 1 to 1 by volume—less liquid than for regular steamed rice—to account for the seasoned sushi vinegar that we add to the cooked rice.
    How to Make Sushi Rice 2
  • Check the kombu to see if there are any dirt particles. If needed, gently wipe it off with a damp cloth (it‘s a traditional method but these days kombu is pretty clean). Do not wipe off the white powdery substance, which contributes to the umami flavor. NEVER wash the kombu! Now, place the kombu on top of the rice in the rice cooker bowl.
    How to Make Sushi Rice 3
  • Soak and Cook: Let the rice soak in the water for 20–30 minutes. Then, start cooking. If you don‘t have a rice cooker, cook the rice in a pot over the stoveInstant Pot, or donabe with the amount of water I specified in this recipe.
    How to Make Sushi Rice 4

To Make the Homemade Sushi Vinegar (Optional)

  • If you are not using a store-bought bottle of sushi vinegar (seasoned rice vinegar), follow this step. Combine the rice vinegar, sugar, and salt in a small saucepan.
    How to Make Sushi Rice 5
  • Bring it to almost simmer over medium-high heat. Whisk until the sugar is completely dissolved. You can also put the ingredients in a microwave-safe bowl and microwave for 1 minute, or until the sugar is dissolved. Set aside to let it cool.
    How to Make Sushi Rice 6

To Make the Sushi Rice

  • If using a wooden sushi oke (also called hangiri), moisten it by running water over it, drain well, and dry it with a clean towel. You can also use a large salad bowl or baking sheet lined with parchment paper. Tip: This wooden tub helps absorb excess moisture while a ceramic bowl can't.
    How to Make Sushi Rice 7
  • When the rice is cooked, discard the used kombu (or repurpose it to make simmered kombu).
    How to Make Sushi Rice 8
  • Transfer the cooked rice into the sushi oke. Spread out the rice evenly so it will cool faster.
    How to Make Sushi Rice 9
  • While it’s hot, pour the sushi vinegar over the rice.
    How to Make Sushi Rice 10
  • With a rice paddle, gently “slice” the rice at a 45-degree angle to incorporate the sushi vinegar mixture and separate the chunks of rice. Do not stir or mix the rice because the grains may break and the rice will become mushy. While using this slicing motion, vigorously fan the rice with a paddle fan or another type of fan. Fanning takes away the excess moisture and makes the rice shine.
    How to Make Sushi Rice 11
  • Then, gently flip the rice in between slices.
    How to Make Sushi Rice 12
  • Repeat this process until the rice is cooled to the temperature of human skin. Your Sushi Rice is now ready to use in your favorite sushi recipes.
    How to Make Sushi Rice 13

To Keep

  • Keep the sushi rice covered with a damp towel (or paper towel) for a few hours at room temperature. To keep it for a longer time, see below.
    How to Make Sushi Rice 14

To Store

  • Rice gets hard and dry in the refrigerator. My recommendation is to put the sushi rice in an airtight container and store it in the freezer for up to a month. You can defrost it overnight in the fridge, and then microwave to room temperature (not hot). If you really want to refrigerate it, cover the container with a thick kitchen towel, so the rice will stay cool but not become cold.

Nutrition

Calories: 353 kcal · Carbohydrates: 79 g · Protein: 6 g · Fat: 1 g · Saturated Fat: 1 g · Polyunsaturated Fat: 1 g · Monounsaturated Fat: 1 g · Sodium: 344 mg · Potassium: 75 mg · Fiber: 3 g · Sugar: 7 g · Calcium: 20 mg · Iron: 4 mg
Author: Namiko Hirasawa Chen
Course: Side Dish
Cuisine: Japanese
Keyword: japanese rice, rice, sushi
©JustOneCookbook.com Content and photographs are copyright protected. Sharing of this recipe is both encouraged and appreciated. Copying and/or pasting full recipes to any website or social media is strictly prohibited. Please view my photo use policy here.
Did you make this recipe?If you made this recipe, snap a pic and hashtag it #justonecookbook! We love to see your creations on Instagram @justonecookbook!

Editor’s Note: This post was originally published on Aug 18, 2011. It was republished with new images, a new video, and more helpful content on January 19, 2024.

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I’ve just been reading your email about cooking rice and have a question. I have a Korean rice cooker which I love and cook a lot of Japanese rice including brown which I do on the GABA setting. My question is if I mix white and brown which setting would I choose on the rice cooker? If I chose short grain white would the brown be undercooked? Also would I still have to soak the brown rice?

Hi, Susan! Thank you very much for reading Nami’s post and newsletter!
If you’re combining brown rice, we recommend using the GABA setting. This setting includes additional soaking time at the beginning, so you may omit it, but you can also soak the rice for 2-3 hours before setting it.
We hope this helped!

Hello again, I noticed that when you added the Kombu you raid to let the rice sit for about 20-30 minutes but my Zojirushi cooker says not to let the rice soak and cook right away. Is that applicable with Kombu added?

Hello, Robert! Thank you so much for taking the time to read Nami’s post!
The Zojirushi rice cooker setting includes a soaking time of about 10 minutes, but we’re going to increase it for a better result.
We hope this helps!

Good morning, I understand that different rice brands will weight different. I have Tamanishiki super premium short grained rice and my Zujirushi 3 cup rice cooker measuring cup leveled off with the rice is 155g. Should I extract the extra 5g when I make my rice to be an exact 150g? Or does that extra 5g not matter in the long run?

Hi Robert, If you have a rice cooker cup, don’t worry about the weight.🙂
The ratio of short-grain white rice to water is 1 to 1 by volume.
We hope this helps!

Thank you

Thanks so much for the info. So basically I should soak my rice for about 15 minutes then put it in the rice cooker and start the cycle is what you are saying?

Hi Robert, Yes! That is good too. 🙂

thanks for the recipe, its so delicious

Hi zidane, We are glad to hear you enjoyed Nami’s recipe!
Thank you so much for trying her recipe and for your kind feedback.😊

Hi! Are you supposed to leave the kombu in the rice cooker bowl when actually cooking the rice? That’s what I did, and some of my rice turned green!5 stars

Hello, Hallie. Thank you so much for taking the time to read Nami’s post and try her recipe!
Yes. Please cook Kombu in the rice cooker with rice. However, Kombu does not normally leave the color. Could you kindly double-check that you used the correct type of Kombu? https://www.justonecookbook.com/kombu/

Hello, I’m in Japan and make sushi rice often. A little bit of green from the kombu is not bad. It is a bit unusual but it’s not a game changer, it will not ruin your sushi rice. Just mix it all up together.

Hi there
Enjoy reading your recipes; and have tried several. Love them!

I’m writing to get your opinion on the rice vinegar. Mizkan rice vinegar available at where I’m located are “flavoured” (photos as attached).

May I know which should I use?

Appreciate your reply.

Thanks and take good care
Chiek Wee

20230605_215443.jpg

Hello Chiek, Thank you for reading Nami’s post and trying her recipe.
Based on the image, it appears that the first bottle on the left is rice vinegar (米酢). Could you please confirm the ingredient list? If it includes sugar, salt, or other ingredients, feel free to adjust the amounts of sugar and salt to your liking. You can also use the first bottle on the right (すし酢) and adjust the sugar and salt as well.
We hope this information is helpful.

Thank you so much for this recipe! I don’t have a rice cooker, so I followed your instructions for how to make rice in the instapot. It came out fantastic! rice vinegar mixture for sushi rice is also very good. I am very happy with my sushi rice and am excited to make rolls for my sons lunch. (This was his request!)5 stars

Hi Jami, We are so happy to hear the Instant pot method worked out well for you!
Thank you so much for trying Nami’s recipe and for your kind feedback. We hope you and your son enjoyed the Sushi rolls too. Happy Cooking!

So great, never cooked so tasty rice before, definetly will make some more to store it in the freezer. Small details make a big difference, thank you for that well explained recipe!5 stars

Hi Faye! Thank you so much for trying Nami’s recipe and for your kind feedback!
We are so happy to hear you enjoyed her recipe and detailed instruction.
Happy Cooking!🤗

I am thrilled to have found your site and such detailed instructions, along with an interesting culinary history lesson.

Fortunately I realized after my first disastrous barely edible sushi rice mush, that I needed an authentic source. Thank you as well for including the link to your sushi grade fish supplier! It’s not that far from fish deprived Arizona.

Needless to say, I just made myself a near perfect (for an amateur) Alaskan salmon sashimi rice bowl on my very first try, only issue being that I didn’t know about kombu and a need a better fillet knife.

I look forward to exploring your cookbook, I might just be able to find some of the authentic Japanese food my mom made from memory and never wrote down. (I grew up in 60s-70s SF and miss both the Japanese cultural influence and the abundant fresh seafood.)5 stars

Hi Andrei! Thank you so much for reading Nami’s post and trying her recipe!
We are so happy to hear that you enjoyed the recipe and everything else we shared. We hope you continue to enjoy exploring our website!
Happy Cooking!

Hello! I saw brown short grain rice at the local japanese market and I wonder if you’ve ever tried making sushi with it? Does it cook similarly? Do you have any favorite brands?

Hi Lindsay! Thank you so much for taking the time to read Nami’s post and try her recipe.
Brown short-grain rice does not have a sticky texture and will be difficult to work with when making Sushi, particularly Nigiri Sushi. This is our recommended brand that is available in the United States.
https://www.amazon.com/dp/B002WFZC6I?linkCode=ssc&tag=onamzjusoneco-20&creativeASIN=B002WFZC6I&asc_item-id=amzn1.ideas.1PXG97D0CRXL8&ref_=aip_sf_list_spv_ons_d_asin
We hope this helps!

Instead of covering the bowl with a damp towel, could we cover with saran wrap?

Hi hmucha! Thank you for reading Nami’s post and trying her recipe!
Yes, you most certainly can. However, the moisture in the rice evaporates and may leave condensation on the plastic wrap.
We hope this helps!

out of curiosity, could i reduce the salt? just a bit? if so, how much do you think is okay?

Hi sayo, Thank you for reading Nami’s post and trying her recipe!
Yes, you may reduce or skip the salt if you prefer.
We hope you enjoy Sushi Rice.

Hi, I’m a fan of your website and have tried many of your recipes with success. I’m keen to try cooking rice in the rice cooker. Just a question with regards to putting kombu in the rice cooker. At what point should I remove the kombu as I understand that it will cause bitterness if left to cook in the water? Is it alright to open the cover of the rice cooker to remove the kombu when it is still in cooking process? Thanks.

Hi Clara! Thank you for your kind feedback! Nami and JOC team are so happy to hear you enjoyed many of the recipes from our site.
You can take out the Kombu when the rice cooker finishes cooking the rice. The rice cooker simmers the rice and Kombu in the perfect condition, so you do not taste the bitterness of the Kombu.
We hope this helps!

Hello, how long can you leave sushi rice on the counter (after following this recipe) before it starts developping bacteria? Thanks!

Hi Magali! Thank you for trying Nami’s recipe!
We can’t tell exactly when the bacteria start developing because it depends on your room temperature and humidity. So, we recommend keeping the sushi rice covered with a damp towel (or paper towel) for no more than a few hours at room temperature. To keep it for a longer time, please see the note on the recipe card.
We hope this helps!

As long as the pH remains between 3.8 and 4.2

How do you have a recipe and not include ratios of vinegar to sugar? It should be really embarrassing.

Last edited 2 years ago by E Will

Hi E Will, Thank you very much for reading Nami’s post and trying her recipe!
The Homemade Sushi Vinegar recipe is on the recipe card.
4 Tbsp rice vinegar (unseasoned)
2 Tbsp sugar
1 tsp kosher salt (Diamond Crystal; use half for table salt)
We hope this helps!