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How-To's

How To Reheat Sushi

Updated: Oct 11, 2026 · Published: Oct 17, 2022 by Monique McArthur · Leave a Comment

Can you reheat sushi? Depends on what's in the roll. Sushi made with fully cooked ingredients can sometimes be reheated, but sushi containing raw fish should be eaten fresh and kept properly chilled. If you have leftover sushi, you should check how it was stored to determine if you can eat it. This is what you need to know about reheating cooked sushi, reviving chilled rice and when to simply throw away leftovers.

How To Reheat Sushi

Both involve prepared raw fish, but sashimi is raw fish with no rice. Sushi can be rolls known as maki-sushi, it can be a bowl of rice with raw fish on top, also known as chirashi, and the cone rolled sushi is called temaki. Nigiri is a kind of sushi, consisting of a small mound of seasoned rice topped with a slice of raw or cooked fish. This is different from onigiri, a rice ball in Japanese cuisine, which is often filled with savory ingredients.

Reheating sashimi may be the trickiest and not necessarily the best idea, but reheating a maki sushi roll, temaki, or even some leftover chirashi may not.

Our article will include tips that can be used for most varieties of sushi but it's important to note that traditionally, sushi can and often does include cooked ingredients.

But does that mean you should reheat your sushi to make it HOT, or to bring it back to the room temperature it was created in? It would be easy to assume "reheating" in this case means "make it hot".

Why Reheat Sushi?

Just because some sushi ingredients are cooked does not necessarily mean those ingredients show up on your plate hot or even warm. There are exceptions, such as with unagi, which is typically cooked in a toaster oven before being made into a roll or cone.

So in many cases what we are talking about isn't reheating sushi as much as getting the food out of the cold fridge and softening up the rice, getting more flavor out of the meal, etc.

Why "reheat" sushi? The motivation is mainly about temperature. If you store sushi in the fridge overnight, the rice can get hard and the ingredients will have a lack of flavor typical of food that is served cold.

Basically, the colder a dish, the more potentially restricted the flavors can be, at least for sushi rolls and similar options. As the food approaches room temperature, more flavors and aromas are released.

The ideal serving temps for sushi? Basically room temperature, so the process of reheating sushi should add as little actual heat as possible; the goal is to get the food to room temperature without cooking the raw fish.

Tips for Reheating Sushi

  • Adjust the heating time based on the amount of sushi that is being reheated.
  • Include a glass of water in the microwave, this will help to make crunchy rice soft again.
  • If possible remove ingredients that are not suitable for reheating.
  • Reheat large quantities in smaller batches.
  • Heat in burst and check sushi as you go.
  • Roll the sushi in a nori sheet before reheating.
  • Separate ingredients such as rice and fish and reheat, if possible.

Microwave

Likely the best method; you can control the heat using a microwave in ways that aren't as efficient in an oven or toaster oven. Cover the sushi with a damp paper towel, this will trap steam and moisture and allow the sushi to heat more evenly and not dry out. Try microwaving the sushi in ten-second intervals on medium heat (medium for a 500-watt microwave oven), for up to three bursts.

Between each 10 second burst, check the sushi to see if it has come to room temperature or not. You should adjust the heating time based on the amount of food--a single sushi roll won't take 30 seconds to get to room temperature the way a microwave full of rolls might. Pro tip:

How To Reheat Sushi in an Air Fryer

Preheat the air fryer to 325°F and air fry the sushi for 2-4 minutes, then turn the sushi over for another 2-4 minutes.

Different types and sizes of air fryers cook faster or slower. Adjust cook times accordingly.

This works especially well for crispy, deep-fried, or tempura-style rolls.

How To Reheat Sushi in Oven

Preheat a conventional oven to 325°F and put the sushi in for 6-10 minutes, then turn the sushi over for another 6-10 minutes.

Be sure to let your oven preheat fully and err on the side of cooler temps if you aren't sure about your kitchen equipment in terms of accuracy, etc. The idea is, as mentioned above, to get your sushi back to room temperature from the fridge rather than heating up the meal like a hot dog.

How To Reheat Sushi in Toaster Oven

Similar to the conventional oven, for 5-8 minutes put the sushi in a toaster oven set between 300°F and 325°F. Your experience may vary, but it's important to remember that a toaster oven will heat faster than a typical kitchen oven. You may need to adjust the heat accordingly if it feels like the sushi will get too warm.

Time To Reheat Sushi

Some prefer to simply remove their sushi from the fridge and place it on a stovetop and wait for it to warm back up to room temperature with no added heat. Some use the stovetop, but turn the oven on to let a small amount of heat contribute to the "natural" return to room temperature.

Reheating Sushi Hacks

It's smart to remove certain ingredients from a sushi roll or other leftovers that won't do so well the next day. One important culprit you find in some sushi--especially fusion sushi? Lettuce. Do yourself a favor and just pluck out the limp, wilted greens from your sushi before you try to reheat it. It may be smart to separate rice from fish if you are dealing with nigiri, heating them separately is a good thing to try first.

Some suggest deep-frying sushi or sushi rolls as an alternative to these methods, but this creates a fully cooked option, and departs from sushi in some ways there. In other ways, deep frying means potentially making fusion sushi, and the possibilities there are endless. It all depends on what aesthetic you are after.

If you are reheating sushi rolls, or any other type of raw fish and crispy seaweed combination, one thing you will note right away is that it's impossible to make sushi seaweed or nori crispy again if it goes soggy. Some prefer to discard it altogether and eat what remains.

Instead of dining out and reheating your leftovers later, give making sushi at home a try. Here are a few easy sushi ideas you can make yourself.

Sushi Recipes To Make At Home

Try these sushi recipes at home and surprise your friends and family with your skills.

Homemade Sushi Recipe

Homemade Sushi Recipe

Photo Credit: www.fifteenspatulas.com

If you've never made sushi at home before, this is a super simple recipe with great step-by-step instructions is perfect for getting you started. Then you can use the basic idea to expand your skils and add more ingredients.

Dragon Roll Recipe

Dragon Roll Recipe

Photo Credit: www.justonecookbook.com

The Dragon Roll is one of the most popular rolls in American sushi restaurants. It's not as easy as making a basic California roll, but you'll impress everyone with your skills if you serve up a home version of this famous roll.

Japanese Rice

Japanese Rice

Learn about Japanese rice, the variety used for sushi, and tips for how to best prepare it at home.

Temaki Sushi (Hand Roll Sushi)

Temaki Sushi (Hand Roll Sushi)

Photo Credit: foodieandwine.com

If you want to start with an easier mat-free roll, try these homemade Hand Rolls (temaki) for an easy at-home sushi making introduction.

Rainbow Roll Sushi

Rainbow Roll Sushi

Photo Credit: izzycooking.com

Rainbow rolls are a popular menu item at most sushi restaurants. Generally, it's a California roll topped with a variety of fish. Here's one version you can make at home.

How to make spicy tuna rolls

How to make spicy tuna rolls

Photo Credit: makemysushi.com

These spicy tuna rolls are phenomenal and you'll add these to your weekend meal rotation. They are fun to make, so you can turn it into a fun family or date night at home activity. If you make too much, these keep well overnight, and are pretty easy to quickly bring back to temp and eat the next day for lunch.

Ahi Tuna Sashimi

Ahi Tuna Sashimi

If you're craving sashimi, try ahi at home. Get some super fresh, slice it just right, and serve it with soy sauce or ponzu. Perfection! And if you have leftover ahi to stash in the fridge, you can sear it the next day.

Burning Volcano Sushi Roll Recipe with Lava Topping

Burning Volcano Sushi Roll Recipe with Lava Topping

Photo Credit: howdaily.com

Start by making a basic California roll, and top it with "lava" to make these uber-delicious Volcano Rolls.

Easy Sushi Bake Recipe

Easy Sushi Bake Recipe

Photo Credit: www.foxyfolksy.com

This one kind of blows my mind. Sushi in a casserole? I'll take it. If you like baked rolls as much as I do, give this one a try. And since it's a warm dish anyway, reheating it won't be as much of an issue as the rolls with raw fish. You can even step this up by adding a slice of raw tuna or salmon to the nori hand roll before topping it with the casserole.

Food Safety Tip: Sushi containing raw fish is best eaten fresh, while leftover sushi made with cooked ingredients should be reheated to an internal temperature of 165°F. Refrigerate sushi promptly and discard any left at room temperature for more than two hours (one hour above 90°F). These recommendations follow the U.S. Food and Drug Administration's (FDA) Safe Food Handling guidelines.

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Monique McArthur
Monique McArthur
Monique McArthur is a recipe developer with more than 22 years of cooking experience, including hands-on work in restaurant kitchens. She specializes in approachable comfort food, family-friendly meals, and restaurant-inspired recipes packed with flavor.
Monique McArthur
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